diff --git a/js_src/gcodeGenerating.js b/js_src/gcodeGenerating.js
index 0ca084a..201cad0 100644
--- a/js_src/gcodeGenerating.js
+++ b/js_src/gcodeGenerating.js
@@ -31,10 +31,6 @@ var gcode = [];
 function generate_gcode() {
   console.log("f:generategcode()");
 
-  // TODO 2013-09-18 evaluate if this should stay here
-  // this was added when Rick mailed us wrt the Ultimaker delivery of Doodle3D
-  var gCodeOffsetX = 110; // mm
-  var gCodeOffsetY = 110; // mm
   
   gcode = [];
 
@@ -58,6 +54,11 @@ function generate_gcode() {
   var retractionamount 	      = settings["printer.retraction.amount"];
   var preheatTemperature      = settings["printer.heatup.temperature"];
   var preheatBedTemperature   = settings["printer.heatup.bed.temperature"];
+  var printerBedWidth      		= settings["printer.bed.width"];
+  var printerBedHeight      	= settings["printer.bed.height"];
+  
+  var gCodeOffsetX = printerBedWidth/2; //110; // mm
+  var gCodeOffsetY = printerBedHeight/2; //110; // mm
   
   var startGcode = settings["printer.startgcode"];
   startGcode = subsituteVariables(startGcode,temperature,bedTemperature,preheatTemperature,preheatBedTemperature);
diff --git a/www/settings.html b/www/settings.html
index c3b8bd0..8af657e 100644
--- a/www/settings.html
+++ b/www/settings.html
@@ -48,7 +48,9 @@
         <option value="tantillus">Tantillus</option>
         <option value="vision_3d_printer">Vision 3D Printer</option>
         <option value="marlin_generic">Generic Marlin Printer</option>
-      </select>
+      </select><br/>
+      <label for="printerBedWidth">Bed width:</label><input id="printerBedWidth" type="number" class="small" name="printer.bed.width">mm<br>
+      <label for="printerBedHeight">Bed height:</label><input id="printerBedHeight" type="number" class="small" name="printer.bed.height">mm<br>
     </fieldset>
 
 	<fieldset id="printersettings">