diff --git a/.gitignore b/.gitignore
index 9f2dcdf..c90492c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,5 @@
 *.DS_Store
 
 jspm_packages/*
+
+bundle.js
diff --git a/config.js b/config.js
index 3c1311a..5dd6187 100644
--- a/config.js
+++ b/config.js
@@ -1,20 +1,21 @@
 System.config({
-  "baseURL": "/",
-  "defaultJSExtensions": true,
-  "transpiler": "babel",
-  "babelOptions": {
+  baseURL: "/",
+  defaultJSExtensions: true,
+  transpiler: "babel",
+  babelOptions: {
     "optional": [
       "runtime"
     ]
   },
-  "paths": {
+  paths: {
     "github:*": "jspm_packages/github/*",
     "npm:*": "jspm_packages/npm/*"
-  }
-});
+  },
+  bundles: {
+    "bundle.js": []
+  },
 
-System.config({
-  "map": {
+  map: {
     "babel": "npm:babel-core@5.8.21",
     "babel-runtime": "npm:babel-runtime@5.8.20",
     "clipper-lib": "npm:clipper-lib@1.0.0",
@@ -23,7 +24,7 @@ System.config({
     "nodeca/js-yaml": "github:nodeca/js-yaml@3.3.1",
     "read-yaml": "npm:read-yaml@1.0.0",
     "systemjs/plugin-json": "github:systemjs/plugin-json@0.1.0",
-    "three.js": "github:mrdoob/three.js@master",
+    "three.js": "github:mrdoob/three.js@r72",
     "github:jspm/nodelibs-assert@0.1.0": {
       "assert": "npm:assert@1.3.0"
     },
@@ -92,4 +93,3 @@ System.config({
     }
   }
 });
-
diff --git a/example/app.js b/example/app.js
index bc1eb1b..eaa4bfa 100644
--- a/example/app.js
+++ b/example/app.js
@@ -3,19 +3,17 @@ import PRINTER_SETTINGS from 'settings/printer_settings.json!';
 import USER_SETTINGS from 'settings/user_settings.json!';
 import * as SLICER from 'src/index';
 
-setTimeout(() => {
-	var settings = new SLICER.Settings();
-	settings.updateConfig(PRINTER_SETTINGS["ultimaker2go"]);
-	settings.updateConfig(USER_SETTINGS);
+var settings = new SLICER.Settings();
+settings.updateConfig(PRINTER_SETTINGS["ultimaker2go"]);
+settings.updateConfig(USER_SETTINGS);
 
-	var geometry = new THREE.TorusGeometry(20, 10, 30, 30);
+var geometry = new THREE.TorusGeometry(20, 10, 30, 30);
 
-	var slicer = new SLICER.Slicer();
-	//var slicer = new SLICER.SlicerWorker();
+var slicer = new SLICER.Slicer();
+//var slicer = new SLICER.SlicerWorker();
 
-	slicer.setGeometry(geometry.clone());
-	slicer.onfinish = function (gCode) {
-		document.getElementById('gcode').innerHTML = gCode.replace(/(?:\r\n|\r|\n)/g, '<br />');
-	};
-	slicer.slice(settings);
-});
\ No newline at end of file
+slicer.setGeometry(geometry.clone());
+slicer.onfinish = function (gCode) {
+	document.getElementById('gcode').innerHTML = gCode.replace(/(?:\r\n|\r|\n)/g, '<br />');
+};
+slicer.slice(settings);
diff --git a/package.json b/package.json
index 5431ba5..1b705de 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
       "nodeca/js-yaml": "github:nodeca/js-yaml@^3.3.1",
       "read-yaml": "npm:read-yaml@^1.0.0",
       "systemjs/plugin-json": "github:systemjs/plugin-json@^0.1.0",
-      "three.js": "github:mrdoob/three.js@master"
+      "three.js": "github:mrdoob/three.js@r72"
     },
     "devDependencies": {
       "babel": "npm:babel-core@^5.1.13",
diff --git a/src/gcode.js b/src/gcode.js
index f54b6dc..fb0320f 100644
--- a/src/gcode.js
+++ b/src/gcode.js
@@ -161,4 +161,4 @@ export default class {
 	getGCode () {
 		return this.settings.startCode() + this.gcode + this.settings.endCode();
 	}
-}
\ No newline at end of file
+}
diff --git a/src/settings.js b/src/settings.js
index 98b2c63..a21971c 100644
--- a/src/settings.js
+++ b/src/settings.js
@@ -55,4 +55,4 @@ export default class {
 
 		return gcode;
 	}
-}
\ No newline at end of file
+}
diff --git a/src/slicer.js b/src/slicer.js
index 968a620..356c40f 100644
--- a/src/slicer.js
+++ b/src/slicer.js
@@ -30,7 +30,7 @@ export default class {
 		if (geometry.type === 'BufferGeometry') {
 			geometry = new THREE.Geometry().fromBufferGeometry(geometry);
 		}
-		else if (geometry.type === 'Geometry') {
+		else if (geometry.type.endsWith('Geometry')) {
 			geometry = geometry.clone();
 		}
 		else {
@@ -138,7 +138,7 @@ export default class {
 		var layerHeight = settings.config["layerHeight"];
 		var height = settings.config["dimensionsZ"];
 
-		var numLayers = height / layerHeight;
+		var numLayers = Math.floor(height / layerHeight);
 
 		var layerIntersectionIndexes = [];
 		var layerIntersectionPoints = [];