diff --git a/src/slicer.js b/src/slicer.js
index 32b71cb..c589ac8 100644
--- a/src/slicer.js
+++ b/src/slicer.js
@@ -61,13 +61,13 @@ D3D.Slicer.prototype.getGCode = function (printer) {
 	var slices = this._slice(lines, printer);
 
 	this._generateInnerLines(slices, printer);
-	
+
 	this._generateInfills(slices, printer);
 
 	if (useSupport) {
 		this._generateSupport(slices, printer);
 	}
-	
+
 	this._optimizePaths(slices, printer);
 
 	var gcode = this._slicesToGCode(slices, printer);
@@ -132,15 +132,13 @@ D3D.Slicer.prototype._slice = function (lines, printer) {
 	var layerHeight = printer.config["layerHeight"];
 	var height = printer.config["dimensionsZ"];
 
-	//var testData = [];
-
 	var numLayers = height / layerHeight;
 
 	var layersIntersections = [];
 	for (var layer = 0; layer < numLayers; layer ++) {
 		layersIntersections[layer] = [];
 	}
-	
+
 	for (var lineIndex = 0; lineIndex < lines.length; lineIndex ++) {
 		var line = lines[lineIndex].line;
 
@@ -155,7 +153,6 @@ D3D.Slicer.prototype._slice = function (lines, printer) {
 	}
 
 	var slices = [];
-	//var testPoints = [];
 
 	for (var layer = 1; layer < layersIntersections.length; layer ++) {
 		var layerIntersections = layersIntersections[layer];
@@ -179,14 +176,6 @@ D3D.Slicer.prototype._slice = function (lines, printer) {
 					var z = line.end.z * alpha + line.start.z * (1 - alpha);
 				}
 				intersections[index] = new THREE.Vector2(z, x);
-
-				/*testPoints.push({
-					x: z, 
-					y: x, 
-					connects: lines[index].connects, 
-					index: index, 
-					normals: lines[index].normals
-				});*/
 			}
 
 			var done = [];
@@ -216,7 +205,7 @@ D3D.Slicer.prototype._slice = function (lines, printer) {
 
 								var faceNormal = faceNormals[Math.floor(j/2)];
 
-								if (a.distanceTo(b) === 0 || faceNormal.length() === 0) {
+								if (a.distanceTo(b) < 0.0001 || faceNormal.length() === 0) {
 									done.push(index);
 
 									connects = connects.concat(lines[index].connects);
@@ -268,18 +257,9 @@ D3D.Slicer.prototype._slice = function (lines, printer) {
 			}
 
 			slices.push(slice);
-
-			/*if (layer === 218) {
-				testData.push({
-					testPoints: testPoints, 
-					pathData: slice.parts
-				});
-			}*/
 		}
 	}
 
-	//console.log(JSON.stringify(testData));
-
 	this.progress.sliced = true;
 	this._updateProgress(printer);
 
diff --git a/three.js-master/editor_slicer/js/Sidebar.Slicer.js b/three.js-master/editor_slicer/js/Sidebar.Slicer.js
index 6f09ae8..279fdba 100644
--- a/three.js-master/editor_slicer/js/Sidebar.Slicer.js
+++ b/three.js-master/editor_slicer/js/Sidebar.Slicer.js
@@ -160,7 +160,7 @@ Sidebar.Slicer = function ( editor ) {
 
 		slicer.setSettings(USER_SETTINGS, PRINTER_SETTINGS[selectedPrinter]);
 
-		var matrix = new THREE.Matrix().setPosition(new THREE.Vector(0, -geometryCombined.boundingBox.min.y, 0));
+		var matrix = new THREE.Matrix4().setPosition(new THREE.Vector3(0, -geometryCombined.boundingBox.min.y, 0));
 		slicer.setGeometry(geometryCombined, matrix);
 
 		slicer.slice();
diff --git a/webworker_test.html b/webworker_test.html
index f4bb086..f9dc9e3 100644
--- a/webworker_test.html
+++ b/webworker_test.html
@@ -14,7 +14,7 @@
 <style>
 canvas {border: 1px solid black;}
 #progress {height: 20px; width: 200px; border: 1px solid black; overflow: hidden;}
-#progress_bar {height: 20px; background-color: lightblue; width: 0%;}
+#progress_bar {height: 20px; background-color: lightblue; width: 0%; transition: width 0.5s;}
 .block {border: 1px solid black; width: 400px; height: 400px; display: inline-block;}
 #start_print, #download {display: none;}
 </style>
@@ -57,7 +57,7 @@ function init () {
 		document.getElementById('current_line').innerHTML = data.current_line;
 		document.getElementById('buffered_lines').innerHTML = data.buffered_lines;
 		document.getElementById('total_lines').innerHTML = data.total_lines;
-		document.getElementById('print_batches').innerHTML = doodleBox.printBatches.length;
+		document.getElementById('print_batches').innerHTML = doodleBox._printBatches.length;
 	};
 
 	printer = new D3D.Printer().updateConfig(USER_SETTINGS).updateConfig(PRINTER_SETTINGS['ultimaker2go']);
@@ -101,7 +101,7 @@ function init () {
 		var mesh = new THREE.Mesh(geometry, material);
 
 		mesh.rotation.x = -Math.PI/2;
-		mesh.scale.x = mesh.scale.y = mesh.scale.z = 0.7;
+		//mesh.scale.x = mesh.scale.y = mesh.scale.z = 0.7;
 		mesh.position.x = 60;
 		mesh.position.z = 60;