diff --git a/extensions/fablabchemnitz/dxf2papercraft/dxf2papercraft.py b/extensions/fablabchemnitz/dxf2papercraft/dxf2papercraft.py
index 7f9bc4eb..3d8d8ec4 100644
--- a/extensions/fablabchemnitz/dxf2papercraft/dxf2papercraft.py
+++ b/extensions/fablabchemnitz/dxf2papercraft/dxf2papercraft.py
@@ -127,36 +127,16 @@ class PapercraftUnfold(inkex.Effect):
         doc.set('width','')
         doc.set('height','')
         doc.set('viewBox','')
-        doc.getchildren()[0].set('transform','')
+        doc.getchildren()[1].set('transform','') #this removes the "transform:scale(1, -1)" from <svg:g id="draft"> child within dxf2papercraft-<id> group
 
         #apply scale factor
         node = doc.getchildren()[1]
         translation_matrix = [[self.options.scalefactor, 0.0, 0.0], [0.0, self.options.scalefactor, 0.0]]            
         node.transform = Transform(translation_matrix) * node.transform
 
-        #Adjust viewport and width/height to have the import at the center of the canvas - unstable at the moment.
-        if self.options.resizetoimport: 
-            elements = []
-            for child in doc.getchildren():
-                #if child.tag == inkex.addNS('g','svg'):
-                elements.append(child)
-
-            #build sum of bounding boxes and ignore errors for faulty elements (sum function often fails for that usecase!)
-            bbox = None
-            try:
-                bbox = elements[0].bounding_box() #init with the first bounding box of the tree (and hope that it is not a faulty one)
-            except Exception as e:
-                #inkex.utils.debug(str(e))
-                pass
-            count = 0
-            for element in elements:
-                if count != 0: #skip the first
-                    try:
-                        bbox += element.bounding_box()
-                    except Exception as e:
-                        #inkex.utils.debug(str(e))
-                        pass
-                count += 1 #some stupid counter
+        #Adjust viewport and width/height to have the import at the center of the canvas
+        if self.options.resizetoimport:
+            bbox = inkex.elements._selected.ElementList.bounding_box(node)
             if bbox is not None:
                 root = self.svg.getElement('//svg:svg');
                 offset = self.svg.unittouu(str(self.options.extraborder) + self.options.extraborder_units)
diff --git a/extensions/fablabchemnitz/dxfdwgimporter/dxfdwgimporter.py b/extensions/fablabchemnitz/dxfdwgimporter/dxfdwgimporter.py
index 94c8b031..41409693 100644
--- a/extensions/fablabchemnitz/dxfdwgimporter/dxfdwgimporter.py
+++ b/extensions/fablabchemnitz/dxfdwgimporter/dxfdwgimporter.py
@@ -427,29 +427,9 @@ class DXFDWGImport(inkex.EffectExtension):
             doc.set('viewBox','')
             doc.getchildren()[0].set('transform','')
             
-        #adjust viewport and width/height to have the import at the center of the canvas - unstable at the moment.
+        #adjust viewport and width/height to have the import at the center of the canvas
         if self.options.resizetoimport: 
-            elements = []
-            for child in doc.getchildren():
-                #if child.tag == inkex.addNS('g','svg'):
-                elements.append(child)
-
-            #build sum of bounding boxes and ignore errors for faulty elements (sum function often fails for that usecase!)
-            bbox = None
-            try:
-                bbox = elements[0].bounding_box() #init with the first bounding box of the tree (and hope that it is not a faulty one)
-            except Exception as e:
-                #inkex.utils.debug(str(e))
-                pass
-            count = 0
-            for element in elements:
-                if count != 0: #skip the first
-                    try:
-                        bbox += element.bounding_box()
-                    except Exception as e:
-                        #inkex.utils.debug(str(e))
-                        pass
-                count += 1 #some stupid counter
+            bbox = inkex.elements._selected.ElementList.bounding_box(doc.getchildren()[0])
             if bbox is not None:
                 root = self.svg.getElement('//svg:svg');
                 offset = self.svg.unittouu(str(self.options.extraborder) + self.options.extraborder_units)
diff --git a/extensions/fablabchemnitz/papercraft_unfold/papercraft_unfold.py b/extensions/fablabchemnitz/papercraft_unfold/papercraft_unfold.py
index bf6901ac..4452b070 100644
--- a/extensions/fablabchemnitz/papercraft_unfold/papercraft_unfold.py
+++ b/extensions/fablabchemnitz/papercraft_unfold/papercraft_unfold.py
@@ -182,30 +182,9 @@ class Unfold(inkex.Effect):
         doc.set('id', self.svg.get_unique_id('papercraft_unfold'))
         self.document.getroot().append(doc)              
 
-        #adjust viewport and width/height to have the import at the center of the canvas - unstable at the moment.
-        if self.options.resizetoimport: 
-            elements = []
-            for child in doc.getchildren():
-                #if child.tag == inkex.addNS('g','svg'):
-                elements.append(child)
-
-            #build sum of bounding boxes and ignore errors for faulty elements (sum function often fails for that usecase!)
-            bbox = None
-            try:
-                bbox = elements[0].bounding_box() #init with the first bounding box of the tree (and hope that it is not a faulty one)
-            except Exception as e:
-                #inkex.utils.debug(str(e))
-                pass
-            count = 0
-            for element in elements:
-                if count != 0: #skip the first
-                    try:
-                        #bbox.add(element.bounding_box())
-                        bbox += element.bounding_box()
-                    except Exception as e:
-                        #inkex.utils.debug(str(e))
-                        pass
-                count += 1 #some stupid counter
+        #adjust viewport and width/height to have the import at the center of the canvas
+        if self.options.resizetoimport:
+            bbox = inkex.elements._selected.ElementList.bounding_box(doc)
             if bbox is not None:
                 root = self.svg.getElement('//svg:svg');
                 offset = self.svg.unittouu(str(self.options.extraborder) + self.options.extraborder_units)