diff --git a/js/Printer.js b/js/Printer.js
index 8a089d1..6368615 100644
--- a/js/Printer.js
+++ b/js/Printer.js
@@ -106,6 +106,8 @@ function Printer() {
     	return;
     }
     
+    this.targetTemperature = settings["printer.temperature"]; // slight hack
+    
 		this.sendPrintPart(this.sendIndex, this.sendLength);
 	}
 	this.byteSize = function(s){
@@ -139,6 +141,7 @@ function Printer() {
 				  	if (lastOne) {
 		          console.log("Printer:sendPrintPart:gcode sending completed");
 		          this.gcode = [];
+		          self.targetTemperature = settings["printer.temperature"]; // slight hack
 		        } else {
 		          self.sendPrintPart(sendIndex + sendLength, sendLength);
 		        }
diff --git a/js/gcodeGenerating_v01.js b/js/gcodeGenerating_v01.js
index cbc76c0..c9f208d 100755
--- a/js/gcodeGenerating_v01.js
+++ b/js/gcodeGenerating_v01.js
@@ -90,9 +90,19 @@ function generate_gcode(callback) {
   console.log("");
   //*/
 
-  objectHeight = Math.ceil(numLayers / 5); // in settings objectHeight = 20, in previewRendering_v01.js numLayers is 100, hence the / 5
-  objectHeight = numLayers; // in settings objectHeight = 20, in previewRendering_v01.js numLayers is 100, hence the / 5
+  // max amount of real world layers 
+  var layers = maxObjectHeight / layerHeight; //maxObjectHeight instead of objectHeight
+  
+  // translate numLayers in preview to objectHeight in real world
+  //objectHeight = Math.ceil(numLayers / 5); // in settings objectHeight = 20, in previewRendering_v01.js numLayers is 100, hence the / 5
+  //objectHeight = numLayers; // in settings objectHeight = 20, in previewRendering_v01.js numLayers is 100, hence the / 5
+  objectHeight = Math.round(numLayers/maxNumLayers*maxObjectHeight);
 
+  // translate preview rotation (per layer) to real world rotation
+  var rStepGCode = rStep * maxNumLayers/layers; ///maxNumLayers*maxObjectHeight;
+  // correct direction
+  rStepGCode = -rStepGCode;
+	
   // todo hier een array van PATHS maken wat de losse paths zijn
 
   // copy array without reference -> http://stackoverflow.com/questions/9885821/copying-of-an-array-of-objects-to-another-array-without-object-reference-in-java
@@ -109,8 +119,7 @@ function generate_gcode(callback) {
   gcode = gcode.concat(startGcode);
 	
   //gcode.push("M109 S" + temperature); // set target temperature and wait for the extruder to reach it
-
-  var layers = maxObjectHeight / layerHeight; //maxObjectHeight instead of objectHeight
+  
   var extruder = 0.0;
   var prev = new Point(); prev.set(0, 0);
 
@@ -146,10 +155,9 @@ function generate_gcode(callback) {
 
     // sort-of in de buurt van (360/2.5)
     // // -> aight.. er zijn 750 lines vs 1000 in de d3d app. 135 = .75 * 180... dit kan je nog rechttrekken als je NET wat slimmer nadenkt :)
-    // update: NEE, het is niet .75 * 180 want 135 was niet de beste value. //TODO dus.
-    var radToDeg = 180/Math.PI;
-    pointsRotate(p, (rStep * radToDeg) * -progress);
-//    pointsRotate(p, rStep * -progress * 139);
+    // update: NEE, het is niet .75 * 180 want 135 was niet de beste value.
+    //pointsRotate(p, rStep * progress * 139);
+    pointsRotate(p, rStepGCode * layer);
 
     if (layer == 0) {
       //gcode.push("M107"); //fan off
@@ -226,8 +234,6 @@ function generate_gcode(callback) {
       console.log("f:generategcode() >> (layer/layers) > (objectHeight/maxObjectHeight) is true -> breaking at layer " + (layer + 1));
       break;
     }
-
-
   }
 
   // add gcode end commands