Update boxes.py

2024-03-31 18:51:28 +02:00 · 2024-03-31 18:51:28 +02:00 · 3e57171903
commit 3e57171903
parent 0cf4d30f75
616 changed files with 41360 additions and 8788 deletions
--- a/extensions/fablabchemnitz/boxes.py/ABox-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/ABox-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/AirPurifier-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/AirPurifier-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/Arcade-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/Arcade-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/BirdHouse-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/BirdHouse-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/BreadBox-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/BreadBox-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/CoinBankSafe-closed-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/CoinBankSafe-closed-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/CoinBankSafe-open-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/CoinBankSafe-open-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/CoinBankSafe-pins-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/CoinBankSafe-pins-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/CoinBankSafe-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/CoinBankSafe-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/ConcaveKnob-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/ConcaveKnob-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/ConsoleArcadeStickBack-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/ConsoleArcadeStickBack-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/ConsoleArcadeStickFront-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/ConsoleArcadeStickFront-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/ConsoleArcadeStickInside-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/ConsoleArcadeStickInside-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/Desksign-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/Desksign-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/Dispenser-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/Dispenser-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/DrillBox-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/DrillBox-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/DrillBoxes-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/DrillBoxes-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/FanHole-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/FanHole-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/FilamentSpool-2-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/FilamentSpool-2-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/FilamentSpool-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/FilamentSpool-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/FillTest-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/FillTest-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/FlexBook-2-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/FlexBook-2-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/FlexBook-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/FlexBook-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/FlexBox5-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/FlexBox5-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/FlexTest2-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/FlexTest2-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/FrontPanel-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/FrontPanel-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/GearBox-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/GearBox-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/GridfinityBase-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/GridfinityBase-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/GridfinityTrayLayout-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/GridfinityTrayLayout-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/HolePattern-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/HolePattern-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/Hook-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/Hook-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/KeyHolder-2-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/KeyHolder-2-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/KeyHolder-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/KeyHolder-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/LaptopStand-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/LaptopStand-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/MagazineFile-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/MagazineFile-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/March36539-box-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/March36539-box-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/NemaPattern-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/NemaPattern-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/OttoBody-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/OttoBody-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/OttoLegs-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/OttoLegs-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/OttoSoles-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/OttoSoles-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/PirateChest-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/PirateChest-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/PizzaShovel-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/PizzaShovel-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/Rack19Box-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/Rack19Box-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/RackBox-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/RackBox-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/RectangularWall-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/RectangularWall-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/RollHolder-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/RollHolder-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/SevenSegmentPattern-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/SevenSegmentPattern-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/Shadowbox-backlit-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/Shadowbox-backlit-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/Shadowbox-diagram-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/Shadowbox-diagram-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/Shadowbox-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/Shadowbox-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/Shoe-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/Shoe-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/SideDoorHousing-2-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/SideDoorHousing-2-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/SideDoorHousing-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/SideDoorHousing-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/SkadisBoard-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/SkadisBoard-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/SlantedTray-2-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/SlantedTray-2-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/SlantedTray-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/SlantedTray-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/SmallPartsTray-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/SmallPartsTray-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/SmallPartsTray2-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/SmallPartsTray2-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/Spool-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/Spool-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/Tetris-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/Tetris-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/WallChiselHolder-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/WallChiselHolder-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/WallConsole-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/WallConsole-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/WallPinRow-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/WallPinRow-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/WallPlaneHolder-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/WallPlaneHolder-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/WallRack-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/WallRack-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/WallRollHolder-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/WallRollHolder-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/WallStairs-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/WallStairs-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/WallWrenchHolder-thumb.jpg
+++ b/extensions/fablabchemnitz/boxes.py/WallWrenchHolder-thumb.jpg
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.ABox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.ABox.inx
@ -3,9 +3,7 @@
 <name>ABox</name>
 <id>info.festi.boxes.py.ABox</id>
 <param name="generator" type="string" gui-hidden="true">abox</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="ABox">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="ABox"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
 <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
 <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
 <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
@ -16,9 +14,9 @@
            <option value="e">e Straight Edge</option>
      </param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -29,8 +27,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -38,6 +35,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
@ -45,7 +43,25 @@
 <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
 <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
 </page>
-    <page name="tab_3" gui-text="Example">
+<page name="tab_3" gui-text="the Lid"><param name="Lid_handle" type="optiongroup" appearance="combo" gui-text="handle" gui-description="type of handle">
+<option value="none">none</option>
+<option value="long_rounded">long_rounded</option>
+<option value="long_trapezoid">long_trapezoid</option>
+<option value="long_doublerounded">long_doublerounded</option>
+<option value="knob">knob</option>
+    </param>
+<param name="Lid_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="type of lid to create">
+<option value="none">none</option>
+<option value="flat">flat</option>
+<option value="chest">chest</option>
+<option value="overthetop">overthetop</option>
+<option value="ontop">ontop</option>
+    </param>
+<param name="Lid_handle_height" type="float" precision="2" max="9999" gui-text="handle_height" gui-description="height of the handle (if applicable)">8.0</param>
+<param name="Lid_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the brim (if any)">4.0</param>
+<param name="Lid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="play when sliding the lid on (if applicable)">0.1</param>
+</page>
+<page name="tab_4" gui-text="Example">
 <image>./ABox-thumb.jpg</image>
 </page>
 </param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.AgricolaInsert.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.AgricolaInsert.inx
@ -3,10 +3,9 @@
 <name>AgricolaInsert</name>
 <id>info.festi.boxes.py.AgricolaInsert</id>
 <param name="generator" type="string" gui-hidden="true">agricolainsert</param>
-<param name="tab" type="notebook">
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<param name="tab" type="notebook"><page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -17,8 +16,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -26,6 +24,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.AirPurifier.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.AirPurifier.inx
@ -0,0 +1,79 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>AirPurifier</name>
+<id>info.festi.boxes.py.AirPurifier</id>
+<param name="generator" type="string" gui-hidden="true">airpurifier</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="AirPurifier"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">498.0</param>
+<param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">496.0</param>
+<param name="filter_height" type="float" precision="2" max="9999" gui-text="filter_height" gui-description="height of the filter along the flow direction (in mm)">46.77</param>
+<param name="rim" type="float" precision="2" max="9999" gui-text="rim" gui-description="rim around the filter holing it in place (in mm)">30.0</param>
+<param name="fan_diameter" type="optiongroup" appearance="combo" gui-text="fan_diameter" gui-description="diameter of the fans (in mm)">
+<option value="40.0">40.0</option>
+<option value="60.0">60.0</option>
+<option value="80.0">80.0</option>
+<option value="92.0">92.0</option>
+<option value="120.0">120.0</option>
+<option value="140.0">140.0</option>
+    </param>
+<param name="filters" type="optiongroup" appearance="combo" gui-text="filters" gui-description="Filters on both sides or only one">
+<option value="1">1</option>
+<option value="2">2</option>
+    </param>
+<param name="split_frames" type="bool" gui-text="split_frames" gui-description="Split frame pieces into four thin rectangles to save material">true</param>
+<param name="fans_left" type="int" max="9999" gui-text="fans_left" gui-description="number of fans on the left side (-1 for maximal number)">-1</param>
+<param name="fans_right" type="int" max="9999" gui-text="fans_right" gui-description="number of fans on the right side (-1 for maximal number)">-1</param>
+<param name="fans_top" type="int" max="9999" gui-text="fans_top" gui-description="number of fans on the top side (-1 for maximal number)">0</param>
+<param name="fans_bottom" type="int" max="9999" gui-text="fans_bottom" gui-description="number of fans on the bottom side (-1 for maximal number)">0</param>
+<param name="screw_holes" type="float" precision="2" max="9999" gui-text="screw_holes" gui-description="diameter of the holes for screwing in the fans (in mm)">5.0</param>
+</page>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
+<param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+<param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+<param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+<param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+<option value="loop">loop</option>
+<option value="corner">corner</option>
+<option value="backarc">backarc</option>
+    </param>
+<param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+</page>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+<option value="rectangular">rectangular</option>
+<option value="springs">springs</option>
+<option value="barbs">barbs</option>
+<option value="snap">snap</option>
+    </param>
+<param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
+<param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+<param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+<param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+<param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+<param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+<param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+</page>
+<page name="tab_3" gui-text="Dove Tail Joints"><param name="DoveTail_angle" type="int" max="9999" gui-text="angle" gui-description="how much should fingers widen (-80 to 80)">50</param>
+<param name="DoveTail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="how far the dove tails stick out of/into the edge (multiples of thickness)">1.0</param>
+<param name="DoveTail_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius used on all four corners (multiples of thickness)">0.2</param>
+<param name="DoveTail_size" type="int" max="9999" gui-text="size" gui-description="from one middle of a dove tail to another (multiples of thickness)">2</param>
+</page>
+<page name="tab_4" gui-text="Example">
+<image>./AirPurifier-thumb.jpg</image>
+</page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/AirPurifier</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Misc"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.AllEdges.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.AllEdges.inx
@ -3,13 +3,11 @@
 <name>AllEdges</name>
 <id>info.festi.boxes.py.AllEdges</id>
 <param name="generator" type="string" gui-hidden="true">alledges</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="AllEdges">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">100</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="AllEdges"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">100</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -20,8 +18,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -29,6 +26,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
@ -36,14 +34,13 @@
 <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
 <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
 </page>
-    <page name="tab_3" gui-text="Stackable Edges">
-        <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+<page name="tab_3" gui-text="Stackable Edges"><param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+<param name="Stackable_bottom_stabilizers" type="float" precision="2" max="9999" gui-text="bottom_stabilizers" gui-description="height of strips to be glued to the inside of bottom edges (multiples of thickness)">0.0</param>
 <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
 <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
 <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
 </page>
-    <page name="tab_4" gui-text="Hinges and HingePins">
-        <param name="Hinge_grip_percentage" type="int" max="9999" gui-text="grip_percentage" gui-description="grip_percentage">0</param>
+<page name="tab_4" gui-text="Hinges and HingePins"><param name="Hinge_grip_percentage" type="int" max="9999" gui-text="grip_percentage" gui-description="grip_percentage">0</param>
 <param name="Hinge_outset" type="bool" gui-text="outset" gui-description="have lid overlap at the sides (similar to OutSetEdge)">false</param>
 <param name="Hinge_pinwidth" type="float" precision="2" max="9999" gui-text="pinwidth" gui-description="set to lower value to get disks surrounding the pins">0.5</param>
 <param name="Hinge_style" type="optiongroup" appearance="combo" gui-text="style" gui-description='"outset" or "flush"'>
@ -54,43 +51,40 @@
 <param name="Hinge_grip_length" type="int" max="9999" gui-text="grip_length" gui-description="fixed length of the grips on he lids (multiples of thickness)">0</param>
 <param name="Hinge_hingestrength" type="int" max="9999" gui-text="hingestrength" gui-description="thickness of the arc holding the pin in place (multiples of thickness)">1</param>
 </page>
-    <page name="tab_5" gui-text="Slide-on Lids">
-        <param name="Lid_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
-        <param name="Lid_hole_width" type="int" max="9999" gui-text="hole_width" gui-description='width of the "finger hole" in mm'>0</param>
-        <param name="Lid_second_pin" type="bool" gui-text="second_pin" gui-description="additional pin for better positioning">true</param>
-        <param name="Lid_spring" type="optiongroup" appearance="combo" gui-text="spring" gui-description="position(s) of the extra locking springs in the lid">
+<page name="tab_5" gui-text="Slide-on Lids"><param name="SlideOnLid_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<param name="SlideOnLid_hole_width" type="int" max="9999" gui-text="hole_width" gui-description='width of the "finger hole" in mm'>0</param>
+<param name="SlideOnLid_second_pin" type="bool" gui-text="second_pin" gui-description="additional pin for better positioning">true</param>
+<param name="SlideOnLid_spring" type="optiongroup" appearance="combo" gui-text="spring" gui-description="position(s) of the extra locking springs in the lid">
 <option value="both">both</option>
 <option value="none">none</option>
 <option value="left">left</option>
 <option value="right">right</option>
    </param>
-        <param name="Lid_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+<param name="SlideOnLid_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
 <option value="barbs">barbs</option>
 <option value="snap">snap</option>
    </param>
-        <param name="Lid_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="Lid_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
-        <param name="Lid_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
-        <param name="Lid_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">3.0</param>
-        <param name="Lid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.05</param>
-        <param name="Lid_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
-        <param name="Lid_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+<param name="SlideOnLid_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="SlideOnLid_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
+<param name="SlideOnLid_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+<param name="SlideOnLid_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+<param name="SlideOnLid_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">3.0</param>
+<param name="SlideOnLid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.05</param>
+<param name="SlideOnLid_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+<param name="SlideOnLid_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
 </page>
-    <page name="tab_6" gui-text="Click-on Lids">
-        <param name="Click_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the hooks bending outward">5.0</param>
+<page name="tab_6" gui-text="Click-on Lids"><param name="Click_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the hooks bending outward">5.0</param>
 <param name="Click_bottom_radius" type="float" precision="2" max="9999" gui-text="bottom_radius" gui-description="radius at the bottom (multiples of thickness)">0.1</param>
 <param name="Click_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="length of the hooks (multiples of thickness)">3.0</param>
 </page>
-    <page name="tab_7" gui-text="Flex">
-        <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
+<page name="tab_7" gui-text="Flex"><param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortened">1.05</param>
 <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">1.0</param>
 <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.5</param>
 <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
 </page>
-    <page name="tab_8" gui-text="HandleEdge">
-        <param name="HandleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall in mm">20.0</param>
+<page name="tab_8" gui-text="HandleEdge"><param name="HandleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall in mm">20.0</param>
 <param name="HandleEdge_hole_height" type="float" precision="2" max="9999" gui-text="hole_height" gui-description="height of hole(s) in percentage of maximum hole height (handle height - 2 * material thickness)">75.0</param>
 <param name="HandleEdge_hole_width" type="string" gui-text="hole_width" gui-description="width of hole(s) in percentage of maximum hole width (width of edge - (n+1) * material thickness)">40:40</param>
 <param name="HandleEdge_on_sides" type="bool" gui-text="on_sides" gui-description="added to side panels if checked, to front and back otherwise (only used with top_edge parameter)">true</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.AngledBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.AngledBox.inx
@ -3,9 +3,7 @@
 <name>AngledBox</name>
 <id>info.festi.boxes.py.AngledBox</id>
 <param name="generator" type="string" gui-hidden="true">angledbox</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="AngledBox">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="AngledBox"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
 <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
 <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
 <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
@ -23,9 +21,9 @@
 <option value="angled lid2">angled lid2</option>
    </param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -36,8 +34,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -45,6 +42,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.AngledCutJig.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.AngledCutJig.inx
@ -3,15 +3,13 @@
 <name>AngledCutJig</name>
 <id>info.festi.boxes.py.AngledCutJig</id>
 <param name="generator" type="string" gui-hidden="true">angledcutjig</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="AngledCutJig">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">50</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="AngledCutJig"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">50</param>
 <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">100</param>
 <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="Angle of the cut">45.0</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -22,8 +20,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -31,6 +28,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Arcade.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Arcade.inx
@ -3,15 +3,13 @@
 <name>Arcade</name>
 <id>info.festi.boxes.py.Arcade</id>
 <param name="generator" type="string" gui-hidden="true">arcade</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="Arcade">
-        <param name="width" type="float" precision="2" max="9999" gui-text="width" gui-description="inner width of the console">450.0</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="Arcade"><param name="width" type="float" precision="2" max="9999" gui-text="width" gui-description="inner width of the console">450.0</param>
 <param name="monitor_height" type="float" precision="2" max="9999" gui-text="monitor_height" gui-description="inner width of the console">350.0</param>
 <param name="keyboard_depth" type="float" precision="2" max="9999" gui-text="keyboard_depth" gui-description="inner width of the console">150.0</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -22,8 +20,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -31,6 +28,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Atreus21.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Atreus21.inx
@ -3,18 +3,16 @@
 <name>Atreus21</name>
 <id>info.festi.boxes.py.Atreus21</id>
 <param name="generator" type="string" gui-hidden="true">atreus21</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="Atreus21">
-        <param name="hotswap_enable" type="bool" gui-text="hotswap_enable" gui-description="enlarge switches holes for hotswap pcb sockets">true</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="Atreus21"><param name="hotswap_enable" type="bool" gui-text="hotswap_enable" gui-description="enlarge switches holes for hotswap pcb sockets">true</param>
 <param name="pcb_mount_enable" type="bool" gui-text="pcb_mount_enable" gui-description="adds holes for pcb mount switches">true</param>
 <param name="led_enable" type="bool" gui-text="led_enable" gui-description="adds pin holes under switches for leds">false</param>
 <param name="diode_enable" type="bool" gui-text="diode_enable" gui-description="adds pin holes under switches for diodes">false</param>
 <param name="cutout_type" type="string" gui-text="cutout_type" gui-description="Shape of the plate cutout: 'castle' allows for modding, and 'simple' is a tighter and simpler square">castle</param>
 <param name="columns_definition" type="string" gui-text="columns_definition" gui-description="Each column is separated by '/', and is in the form 'nb_rows @ offset x repeat_count'. Nb_rows is the number of rows for this column. The offset is in mm and optional. Repeat_count is optional and repeats this column multiple times. Spaces are not important.For example '3x2 / 4@11' means we want 3 columns, the two first with 3 rows without offset, and the last with 4 rows starting at 11mm high.">4@3/4@6/4@11/4@5/4@0/1@7.8</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.BasedBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BasedBox.inx
@ -3,16 +3,14 @@
 <name>BasedBox</name>
 <id>info.festi.boxes.py.BasedBox</id>
 <param name="generator" type="string" gui-hidden="true">basedbox</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="BasedBox">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="BasedBox"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
 <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
 <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
 <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -23,8 +21,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -32,6 +29,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.BayonetBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BayonetBox.inx
@ -3,16 +3,14 @@
 <name>BayonetBox</name>
 <id>info.festi.boxes.py.BayonetBox</id>
 <param name="generator" type="string" gui-hidden="true">bayonetbox</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="BayonetBox">
-        <param name="diameter" type="float" precision="2" max="9999" gui-text="diameter" gui-description="Diameter of the box in mm">50.0</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="BayonetBox"><param name="diameter" type="float" precision="2" max="9999" gui-text="diameter" gui-description="Diameter of the box in mm">50.0</param>
 <param name="lugs" type="int" max="9999" gui-text="lugs" gui-description="number of locking lugs">10</param>
 <param name="alignment_pins" type="float" precision="2" max="9999" gui-text="alignment_pins" gui-description="diameter of the alignment pins">1.0</param>
 <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.BinTray.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BinTray.inx
@ -3,18 +3,16 @@
 <name>BinTray</name>
 <id>info.festi.boxes.py.BinTray</id>
 <param name="generator" type="string" gui-hidden="true">bintray</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="BinTray">
-        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="BinTray"><param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
 <param name="sy" type="string" gui-text="sy" gui-description="sections back to front in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
 <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
 <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
 <param name="hole_dD" type="string" gui-text="hole_dD" gui-description="mounting hole diameter (shaft:head) in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#mounting-holes)">3.5:6.5</param>
-        <param name="front" type="float" precision="2" max="9999" gui-text="front" gui-description="fraction of bin height covert with slope">0.4</param>
+<param name="front" type="float" precision="2" max="9999" gui-text="front" gui-description="fraction of bin height covered with slope">0.4</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -25,8 +23,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -34,6 +31,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.BirdHouse.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BirdHouse.inx
@ -3,15 +3,14 @@
 <name>BirdHouse</name>
 <id>info.festi.boxes.py.BirdHouse</id>
 <param name="generator" type="string" gui-hidden="true">birdhouse</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="BirdHouse">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">200</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="BirdHouse"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">200</param>
 <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">200</param>
 <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">200</param>
+<param name="roof_overhang" type="float" precision="2" max="9999" gui-text="roof_overhang" gui-description="overhang as fraction of the roof length">0.4</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -22,8 +21,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -31,6 +29,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">10.0</param>
@ -47,7 +46,7 @@
    <object-type>all</object-type>
    <effects-menu>
        <submenu name="FabLab Chemnitz Boxes.py">
-            <submenu name="Unstable"/>
+            <submenu name="Misc"/>
        </submenu>
    </effects-menu>
 </effect>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.BottleStack.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BottleStack.inx
@ -3,16 +3,14 @@
 <name>BottleStack</name>
 <id>info.festi.boxes.py.BottleStack</id>
 <param name="generator" type="string" gui-hidden="true">bottlestack</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="BottleStack">
-        <param name="diameter" type="float" precision="2" max="9999" gui-text="diameter" gui-description="diameter of the bottles in mm">80</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="BottleStack"><param name="diameter" type="float" precision="2" max="9999" gui-text="diameter" gui-description="diameter of the bottles in mm">80</param>
 <param name="number" type="int" max="9999" gui-text="number" gui-description="number of bottles to hold in the bottom row">3</param>
 <param name="depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="depth of the stand along the base of the bottles">80</param>
 <param name="double" type="bool" gui-text="double" gui-description="two pieces that can be combined to up to double the width">true</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.BottleTag.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BottleTag.inx
@ -3,18 +3,16 @@
 <name>BottleTag</name>
 <id>info.festi.boxes.py.BottleTag</id>
 <param name="generator" type="string" gui-hidden="true">bottletag</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="BottleTag">
-        <param name="width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of neck tag">72</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="BottleTag"><param name="width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of neck tag">72</param>
 <param name="height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of neck tag">98</param>
 <param name="min_diameter" type="float" precision="2" max="9999" gui-text="min_diameter" gui-description="inner diameter of bottle neck hole">24</param>
 <param name="max_diameter" type="float" precision="2" max="9999" gui-text="max_diameter" gui-description="outer diameter of bottle neck hole">50</param>
 <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="corner radius of bottom tag">15</param>
 <param name="segment_width" type="int" max="9999" gui-text="segment_width" gui-description="inner segment width">3</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.BreadBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BreadBox.inx
@ -3,16 +3,14 @@
 <name>BreadBox</name>
 <id>info.festi.boxes.py.BreadBox</id>
 <param name="generator" type="string" gui-hidden="true">breadbox</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="BreadBox">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">150</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="BreadBox"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">150</param>
 <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">100</param>
 <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">100</param>
 <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of the corners">40.0</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -23,8 +21,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -32,6 +29,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
@ -39,8 +37,7 @@
 <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
 <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
 </page>
-    <page name="tab_3" gui-text="Flex">
-        <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
+<page name="tab_3" gui-text="Flex"><param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortened">1.05</param>
 <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">2.0</param>
 <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.75</param>
 <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
@ -54,7 +51,7 @@
    <object-type>all</object-type>
    <effects-menu>
        <submenu name="FabLab Chemnitz Boxes.py">
-            <submenu name="Unstable"/>
+            <submenu name="Boxes with flex"/>
        </submenu>
    </effects-menu>
 </effect>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.BurnTest.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BurnTest.inx
@ -3,15 +3,15 @@
 <name>BurnTest</name>
 <id>info.festi.boxes.py.BurnTest</id>
 <param name="generator" type="string" gui-hidden="true">burntest</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="BurnTest">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">100</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="BurnTest"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">100</param>
 <param name="step" type="float" precision="2" max="9999" gui-text="step" gui-description="increases in burn value between the sides">0.01</param>
 <param name="pairs" type="int" max="9999" gui-text="pairs" gui-description="number of pairs (each testing four burn values)">2</param>
+<param name="date" type="bool" gui-text="date" gui-description="add current date etching to each piece">false</param>
+<param name="id" type="string" gui-text="id" gui-description="add identifier etching to each piece"></param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -22,8 +22,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -31,6 +30,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.CanStorage.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.CanStorage.inx
@ -3,9 +3,7 @@
 <name>CanStorage</name>
 <id>info.festi.boxes.py.CanStorage</id>
 <param name="generator" type="string" gui-hidden="true">canstorage</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="CanStorage">
-        <param name="top_edge" type="optiongroup" appearance="combo" gui-text="top_edge" gui-description="edge type for top edge">
+<param name="tab" type="notebook"><page name="tab_0" gui-text="CanStorage">        <param name="top_edge" type="optiongroup" appearance="combo" gui-text="top_edge" gui-description="edge type for top edge">
            <option value="e">e Straight Edge</option>
            <option value="f">f Finger Joint</option>
            <option value="h">h Edge (parallel Finger Joint Holes)</option>
@ -17,13 +15,13 @@
            <option value="š">š Stackable feet (bottom)</option>
      </param>
 <param name="canDiameter" type="float" precision="2" max="9999" gui-text="canDiameter" gui-description="outer diameter of the cans to be stored (in mm)">75</param>
-        <param name="canHight" type="float" precision="2" max="9999" gui-text="canHight" gui-description="hight of the cans to be stored (in mm)">110</param>
+<param name="canHeight" type="float" precision="2" max="9999" gui-text="canHeight" gui-description="height of the cans to be stored (in mm)">110</param>
 <param name="canNum" type="int" max="9999" gui-text="canNum" gui-description="number of cans to be stored">12</param>
 <param name="chuteAngle" type="float" precision="2" max="9999" gui-text="chuteAngle" gui-description="slope angle of the chutes">5.0</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -34,8 +32,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -43,6 +40,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
@ -50,14 +48,13 @@
 <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
 <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
 </page>
-    <page name="tab_3" gui-text="Stackable Edges">
-        <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+<page name="tab_3" gui-text="Stackable Edges"><param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+<param name="Stackable_bottom_stabilizers" type="float" precision="2" max="9999" gui-text="bottom_stabilizers" gui-description="height of strips to be glued to the inside of bottom edges (multiples of thickness)">0.0</param>
 <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
 <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
 <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
 </page>
-    <page name="tab_4" gui-text="Hole filling">
-        <param name="fillHoles_bar_length" type="int" max="9999" gui-text="bar_length" gui-description="maximum length of bars">50</param>
+<page name="tab_4" gui-text="Hole filling"><param name="fillHoles_bar_length" type="int" max="9999" gui-text="bar_length" gui-description="maximum length of bars">50</param>
 <param name="fillHoles_fill_pattern" type="optiongroup" appearance="combo" gui-text="fill_pattern" gui-description="style of hole pattern">
 <option value="no fill">no fill</option>
 <option value="hex">hex</option>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.CarbonFilter.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.CarbonFilter.inx
@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>CarbonFilter</name>
+<id>info.festi.boxes.py.CarbonFilter</id>
+<param name="generator" type="string" gui-hidden="true">carbonfilter</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="CarbonFilter"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">550</param>
+<param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">550</param>
+<param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">250</param>
+<param name="pockets" type="int" max="9999" gui-text="pockets" gui-description="number of V shaped filter pockets">3</param>
+<param name="ribs" type="int" max="9999" gui-text="ribs" gui-description="number of ribs to hold the bottom and the mesh">12</param>
+</page>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
+<param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+<param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+<param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+<param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+<option value="loop">loop</option>
+<option value="corner">corner</option>
+<option value="backarc">backarc</option>
+    </param>
+<param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+</page>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+<option value="rectangular">rectangular</option>
+<option value="springs">springs</option>
+<option value="barbs">barbs</option>
+<option value="snap">snap</option>
+    </param>
+<param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
+<param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+<param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+<param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+<param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+<param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+<param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+</page>
+<page name="tab_3" gui-text="Example">
+<image>./CarbonFilter-thumb.jpg</image>
+</page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/CarbonFilter</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Misc"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.CardBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.CardBox.inx
@ -3,16 +3,25 @@
 <name>CardBox</name>
 <id>info.festi.boxes.py.CardBox</id>
 <param name="generator" type="string" gui-hidden="true">cardbox</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="CardBox">
-        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">30</param>
-        <param name="cardwidth" type="float" precision="2" max="9999" gui-text="cardwidth" gui-description="Width of the cards">65</param>
-        <param name="cardheight" type="float" precision="2" max="9999" gui-text="cardheight" gui-description="Height of the cards">90</param>
-        <param name="num" type="int" max="9999" gui-text="num" gui-description="number of compartments">2</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="CardBox"><param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">68</param>
+<param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">92</param>
+<param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">false</param>
+<param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">65*4</param>
+<param name="openingdirection" type="optiongroup" appearance="combo" gui-text="openingdirection" gui-description="Direction in which the lid slides open. Lid length &gt; Lid width recommended.">
+<option value="front">front</option>
+<option value="right">right</option>
+    </param>
+<param name="fingerhole" type="optiongroup" appearance="combo" gui-text="fingerhole" gui-description="Depth of cutout to grab the cards">
+<option value="regular">regular</option>
+<option value="deep">deep</option>
+<option value="custom">custom</option>
+    </param>
+<param name="fingerhole_depth" type="float" precision="2" max="9999" gui-text="fingerhole_depth" gui-description="Depth of cutout if fingerhole is set to 'custom'. Disabled otherwise.">20</param>
+<param name="add_lidtopper" type="bool" gui-text="add_lidtopper" gui-description="Add an additional lid topper for optical reasons and customisation">false</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -23,8 +32,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -32,6 +40,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.CardHolder.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.CardHolder.inx
@ -3,18 +3,16 @@
 <name>CardHolder</name>
 <id>info.festi.boxes.py.CardHolder</id>
 <param name="generator" type="string" gui-hidden="true">cardholder</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="CardHolder">
-        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">68*3</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="CardHolder"><param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">68*3</param>
 <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100</param>
 <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">40</param>
 <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">false</param>
 <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="backward angle of floor">7.5</param>
 <param name="stackable" type="bool" gui-text="stackable" gui-description="make holders stackable">true</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -25,8 +23,13 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Grooved Edge">
-        <param name="Grooved_arc_angle" type="int" max="9999" gui-text="arc_angle" gui-description="the angle of arc cuts">120</param>
+<page name="tab_2" gui-text="Stackable Edges"><param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+<param name="Stackable_bottom_stabilizers" type="float" precision="2" max="9999" gui-text="bottom_stabilizers" gui-description="height of strips to be glued to the inside of bottom edges (multiples of thickness)">0.0</param>
+<param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+<param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+<param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
+</page>
+<page name="tab_3" gui-text="Grooved Edge"><param name="Grooved_arc_angle" type="int" max="9999" gui-text="arc_angle" gui-description="the angle of arc cuts">120</param>
 <param name="Grooved_gap" type="float" precision="2" max="9999" gui-text="gap" gui-description="the gap between grooves (fraction of the edge length)">0.1</param>
 <param name="Grooved_interleave" type="bool" gui-text="interleave" gui-description="alternate the direction of grooves">false</param>
 <param name="Grooved_inverse" type="bool" gui-text="inverse" gui-description="invert the groove directions">false</param>
@ -40,8 +43,7 @@
 <param name="Grooved_tri_angle" type="int" max="9999" gui-text="tri_angle" gui-description="the angle of triangular cuts">30</param>
 <param name="Grooved_width" type="float" precision="2" max="9999" gui-text="width" gui-description="the width of each groove (fraction of the edge length)">0.2</param>
 </page>
-    <page name="tab_3" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_4" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -49,6 +51,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
@ -56,7 +59,7 @@
 <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
 <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
 </page>
-    <page name="tab_4" gui-text="Example">
+<page name="tab_5" gui-text="Example">
 <image>./CardHolder-thumb.jpg</image>
 </page>
 </param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Castle.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Castle.inx
@ -3,10 +3,9 @@
 <name>Castle</name>
 <id>info.festi.boxes.py.Castle</id>
 <param name="generator" type="string" gui-hidden="true">castle</param>
-<param name="tab" type="notebook">
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<param name="tab" type="notebook"><page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -17,8 +16,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -26,6 +24,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.ClosedBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.ClosedBox.inx
@ -3,16 +3,14 @@
 <name>ClosedBox</name>
 <id>info.festi.boxes.py.ClosedBox</id>
 <param name="generator" type="string" gui-hidden="true">closedbox</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="ClosedBox">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="ClosedBox"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
 <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
 <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
 <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -23,8 +21,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -32,6 +29,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.CoffeeCapsuleHolder.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.CoffeeCapsuleHolder.inx
@ -3,15 +3,13 @@
 <name>CoffeeCapsuleHolder</name>
 <id>info.festi.boxes.py.CoffeeCapsuleHolder</id>
 <param name="generator" type="string" gui-hidden="true">coffeecapsuleholder</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="CoffeeCapsuleHolder">
-        <param name="columns" type="int" max="9999" gui-text="columns" gui-description="Number of columns of capsules.">4</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="CoffeeCapsuleHolder"><param name="columns" type="int" max="9999" gui-text="columns" gui-description="Number of columns of capsules.">4</param>
 <param name="rows" type="int" max="9999" gui-text="rows" gui-description="Number of capsules by columns.">5</param>
 <param name="backplate" type="bool" gui-text="backplate" gui-description="True if a backplate should be generated.">true</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.CoinBankSafe.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.CoinBankSafe.inx
@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>CoinBankSafe</name>
+<id>info.festi.boxes.py.CoinBankSafe</id>
+<param name="generator" type="string" gui-hidden="true">coinbanksafe</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="CoinBankSafe"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">100.0</param>
+<param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">100.0</param>
+<param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">100.0</param>
+<param name="slotlength" type="float" precision="2" max="9999" gui-text="slotlength" gui-description="Length of the coin slot in mm">30</param>
+<param name="slotwidth" type="float" precision="2" max="9999" gui-text="slotwidth" gui-description="Width of the coin slot in mm">4</param>
+<param name="handlelength" type="float" precision="2" max="9999" gui-text="handlelength" gui-description="Length of handle in multiples of thickness">8</param>
+<param name="handleclearance" type="float" precision="2" max="9999" gui-text="handleclearance" gui-description="Clearance of handle in multiples of thickness">1.5</param>
+</page>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
+<param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+<param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+<param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+<param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+<option value="loop">loop</option>
+<option value="corner">corner</option>
+<option value="backarc">backarc</option>
+    </param>
+<param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+</page>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+<option value="rectangular">rectangular</option>
+<option value="springs">springs</option>
+<option value="barbs">barbs</option>
+<option value="snap">snap</option>
+    </param>
+<param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
+<param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+<param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+<param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+<param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+<param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+<param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+</page>
+<page name="tab_3" gui-text="Example">
+<image>./CoinBankSafe-thumb.jpg</image>
+</page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/CoinBankSafe</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Misc"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.CoinDisplay.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.CoinDisplay.inx
@ -3,9 +3,7 @@
 <name>CoinDisplay</name>
 <id>info.festi.boxes.py.CoinDisplay</id>
 <param name="generator" type="string" gui-hidden="true">coindisplay</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="CoinDisplay">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="CoinDisplay"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
 <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
 <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
 <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
@ -14,9 +12,9 @@
 <param name="coin_showcase_h" type="float" precision="2" max="9999" gui-text="coin_showcase_h" gui-description="The height of the coin showcase piece">50.0</param>
 <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="The angle that the coin will tilt as">30</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -27,8 +25,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -36,6 +33,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.ConcaveKnob.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.ConcaveKnob.inx
@ -3,9 +3,7 @@
 <name>ConcaveKnob</name>
 <id>info.festi.boxes.py.ConcaveKnob</id>
 <param name="generator" type="string" gui-hidden="true">concaveknob</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="ConcaveKnob">
-        <param name="diameter" type="float" precision="2" max="9999" gui-text="diameter" gui-description="Diameter of the knob (mm)">50.0</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="ConcaveKnob"><param name="diameter" type="float" precision="2" max="9999" gui-text="diameter" gui-description="Diameter of the knob (mm)">50.0</param>
 <param name="serrations" type="int" max="9999" gui-text="serrations" gui-description="Number of serrations">3</param>
 <param name="rounded" type="float" precision="2" max="9999" gui-text="rounded" gui-description="Amount of circumference used for non convex parts">0.2</param>
 <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="Angle between convex and concave parts">70.0</param>
@ -13,9 +11,9 @@
 <param name="dhole" type="float" precision="2" max="9999" gui-text="dhole" gui-description="D-Flat in fraction of the diameter">1.0</param>
 <param name="hexhead" type="float" precision="2" max="9999" gui-text="hexhead" gui-description="Width of the hex bolt head (mm)">10.0</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Console.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Console.inx
@ -3,18 +3,16 @@
 <name>Console</name>
 <id>info.festi.boxes.py.Console</id>
 <param name="generator" type="string" gui-hidden="true">console</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="Console">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="Console"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100</param>
 <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100</param>
 <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100</param>
 <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">false</param>
 <param name="front_height" type="float" precision="2" max="9999" gui-text="front_height" gui-description="height of the front below the panel (in mm)">30</param>
 <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the front panel (90°=upright)">50</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -25,8 +23,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -34,6 +31,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
@ -41,8 +39,8 @@
 <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
 <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
 </page>
-    <page name="tab_3" gui-text="Stackable Edges">
-        <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+<page name="tab_3" gui-text="Stackable Edges"><param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+<param name="Stackable_bottom_stabilizers" type="float" precision="2" max="9999" gui-text="bottom_stabilizers" gui-description="height of strips to be glued to the inside of bottom edges (multiples of thickness)">0.0</param>
 <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
 <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
 <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Console2.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Console2.inx
@ -3,9 +3,7 @@
 <name>Console2</name>
 <id>info.festi.boxes.py.Console2</id>
 <param name="generator" type="string" gui-hidden="true">console2</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="Console2">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="Console2"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100</param>
 <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100</param>
 <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100</param>
        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
@ -21,9 +19,9 @@
 <param name="removable_panel" type="bool" gui-text="removable_panel" gui-description="The panel is held by tabs and can be removed">true</param>
 <param name="glued_panel" type="bool" gui-text="glued_panel" gui-description="the panel is glued and not held by finger joints">true</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -34,8 +32,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -43,6 +40,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
@ -50,8 +48,8 @@
 <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
 <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
 </page>
-    <page name="tab_3" gui-text="Stackable Edges">
-        <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+<page name="tab_3" gui-text="Stackable Edges"><param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+<param name="Stackable_bottom_stabilizers" type="float" precision="2" max="9999" gui-text="bottom_stabilizers" gui-description="height of strips to be glued to the inside of bottom edges (multiples of thickness)">0.0</param>
 <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
 <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
 <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Desksign.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Desksign.inx
@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>Desksign</name>
+<id>info.festi.boxes.py.Desksign</id>
+<param name="generator" type="string" gui-hidden="true">desksign</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="Desksign"><param name="width" type="float" precision="2" max="9999" gui-text="width" gui-description="plate width in mm (excluding holes)">150</param>
+<param name="height" type="float" precision="2" max="9999" gui-text="height" gui-description="plate height in mm">80</param>
+<param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="plate angle in degrees (90 is vertical)">60</param>
+<param name="label" type="string" gui-text="label" gui-description="optional text to engrave (leave blank to omit)"></param>
+<param name="fontsize" type="float" precision="2" max="9999" gui-text="fontsize" gui-description="height of text">20</param>
+<param name="feet" type="bool" gui-text="feet" gui-description="add raised feet">false</param>
+<param name="mirror" type="bool" gui-text="mirror" gui-description="mirrors one of the stand so the same side of the material can be placed on the outside">true</param>
+</page>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
+<param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+<param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+<param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+<param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+<option value="loop">loop</option>
+<option value="corner">corner</option>
+<option value="backarc">backarc</option>
+    </param>
+<param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+</page>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+<option value="rectangular">rectangular</option>
+<option value="springs">springs</option>
+<option value="barbs">barbs</option>
+<option value="snap">snap</option>
+    </param>
+<param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
+<param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+<param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+<param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+<param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+<param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+<param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+</page>
+<page name="tab_3" gui-text="Stackable Edges"><param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+<param name="Stackable_bottom_stabilizers" type="float" precision="2" max="9999" gui-text="bottom_stabilizers" gui-description="height of strips to be glued to the inside of bottom edges (multiples of thickness)">0.0</param>
+<param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+<param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+<param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">2.0</param>
+</page>
+<page name="tab_4" gui-text="Example">
+<image>./Desksign-thumb.jpg</image>
+</page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/Desksign</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Misc"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.DiceBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.DiceBox.inx
@ -3,9 +3,7 @@
 <name>DiceBox</name>
 <id>info.festi.boxes.py.DiceBox</id>
 <param name="generator" type="string" gui-hidden="true">dicebox</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="DiceBox">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="DiceBox"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100</param>
 <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100</param>
 <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">18</param>
 <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
@ -13,9 +11,9 @@
 <param name="hex_hole_corner_radius" type="float" precision="2" max="9999" gui-text="hex_hole_corner_radius" gui-description="The corner radius of the hexagonal dice holes, in mm">5</param>
 <param name="magnet_diameter" type="float" precision="2" max="9999" gui-text="magnet_diameter" gui-description="The diameter of magnets for holding the box closed, in mm">6</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -26,8 +24,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -35,6 +32,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
@ -42,8 +40,7 @@
 <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
 <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
 </page>
-    <page name="tab_3" gui-text="Chest Hinges">
-        <param name="ChestHinge_finger_joints_on_box" type="bool" gui-text="finger_joints_on_box" gui-description="whether to include finger joints on the edge with the box">true</param>
+<page name="tab_3" gui-text="Chest Hinges"><param name="ChestHinge_finger_joints_on_box" type="bool" gui-text="finger_joints_on_box" gui-description="whether to include finger joints on the edge with the box">true</param>
 <param name="ChestHinge_finger_joints_on_lid" type="bool" gui-text="finger_joints_on_lid" gui-description="whether to include finger joints on the edge with the lid">true</param>
 <param name="ChestHinge_hinge_strength" type="float" precision="2" max="9999" gui-text="hinge_strength" gui-description="thickness of the arc holding the pin in place (multiples of thickness)">1.0</param>
 <param name="ChestHinge_pin_height" type="float" precision="2" max="9999" gui-text="pin_height" gui-description="radius of the disc rotating in the hinge (multiples of thickness)">2.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.DinRailBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.DinRailBox.inx
@ -3,17 +3,15 @@
 <name>DinRailBox</name>
 <id>info.festi.boxes.py.DinRailBox</id>
 <param name="generator" type="string" gui-hidden="true">dinrailbox</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="DinRailBox">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">70</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="DinRailBox"><param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">70</param>
 <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">90</param>
 <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">60</param>
 <param name="rail_width" type="float" precision="2" max="9999" gui-text="rail_width" gui-description="width of the rail (typically 35 or 15mm)">35.0</param>
 <param name="rail_offset" type="float" precision="2" max="9999" gui-text="rail_offset" gui-description="offset of the rail from the middle of the box (in mm)">0.0</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -24,8 +22,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -33,6 +30,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.8</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.DiscRack.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.DiscRack.inx
@ -3,9 +3,7 @@
 <name>DiscRack</name>
 <id>info.festi.boxes.py.DiscRack</id>
 <param name="generator" type="string" gui-hidden="true">discrack</param>
-<param name="tab" type="notebook">
-    <page name="tab_0" gui-text="DiscRack">
-        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">20*10</param>
+<param name="tab" type="notebook"><page name="tab_0" gui-text="DiscRack"><param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">20*10</param>
 <param name="disc_diameter" type="float" precision="2" max="9999" gui-text="disc_diameter" gui-description="Disc diameter in mm">150.0</param>
 <param name="disc_thickness" type="float" precision="2" max="9999" gui-text="disc_thickness" gui-description="Thickness of the discs in mm">5.0</param>
 <param name="lower_factor" type="float" precision="2" max="9999" gui-text="lower_factor" gui-description="Position of the lower rack grids along the radius">0.75</param>
@ -13,9 +11,9 @@
 <param name="disc_outset" type="float" precision="2" max="9999" gui-text="disc_outset" gui-description="Additional space kept between the disks and the outbox of the rack">3.0</param>
 <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="Backwards slant of the rack">18</param>
 </page>
-    <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+<page name="tab_1" gui-text="Default"><param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
 <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+<param name="qr_code" type="bool" gui-text="qr_code" gui-description="Add a QR Code with link or command line to the generated output">false</param>
 <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
 <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
 <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
@ -26,8 +24,7 @@
    </param>
 <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
 </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+<page name="tab_2" gui-text="Finger Joints"><param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
 <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
 <option value="rectangular">rectangular</option>
 <option value="springs">springs</option>
@ -35,6 +32,7 @@
 <option value="snap">snap</option>
    </param>
 <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+<param name="FingerJoint_bottom_lip" type="float" precision="2" max="9999" gui-text="bottom_lip" gui-description="height of the bottom lips sticking out  (multiples of thickness) FingerHoleEdge only!">0.0</param>
 <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
 <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
 <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
--- a/Show More
+++ b/Show More