improved network error handling

can now reconnect when connecting failed

settings/printer_settings.json

@@ -4,14 +4,14 @@
 		"printer.dimensions.x": 200, 
 		"printer.dimensions.y": 200, 
 		"printer.dimensions.z": 200, 
-		"printer.endcode": "M107 ;fan off\nG91 ;relative positioning\nG1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure\nG1 Z+0.5 E-5 X-20 Y-20 F9000 ;move Z up a bit and retract filament even more\nG28 X0 Y0 ;move X/Y to min endstops, so the head is out of the way\nM84 ;disable axes / steppers\nG90 ;absolute positioning\nM104 S{preheatTemp}\n{if heatedBed}M140 S{preheatBedTemp}\nM117 Done                 ;display message (20 characters to clear whole screen)", 
+		"printer.endcode": "M107 ;fan off\nG91 ;relative positioning\nG1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure\nG1 Z+0.5 E-5 X-20 Y-20 F9000 ;move Z up a bit and retract filament even more\nG28 X0 Y0 ;move X/Y to min endstops, so the head is out of the way\nM84 ;disable axes / steppers\nG90 ;absolute positioning\nM104 S{preheatTemp}\n{if heatedBed}M140 S{preheatBedTemp}\nM117 Done                 ;display message (20 characters to clear whole screen)\n", 
 		"printer.filamentThickness": 2.85, 
 		"printer.heatedbed": false, 
 		"printer.heatup.bed.temperature": 70, 
 		"printer.heatup.enabled": true, 
 		"printer.heatup.temperature": 180, 
 		"printer.nozzleDiameter": 0.4, 
-		"printer.startcode": ";Generated with Doodle3D (default)\nM109 S{printingTemp} ;set target temperature \n{if heatedBed}M190 S{printingBedTemp} ;set target bed temperature\nG21 ;metric values\nG91 ;relative positioning\nM107 ;start with the fan off\nG28 X0 Y0 ;move X/Y to min endstops\nG28 Z0 ;move Z to min endstops\nG1 Z15 F9000 ;move the platform down 15mm\nG92 E0 ;zero the extruded length\nG1 F200 E10 ;extrude 10mm of feed stock\nG92 E0 ;zero the extruded length again\nG92 E0 ;zero the extruded length again\nG1 F9000\nG90 ;absolute positioning\nM117 Printing Doodle...   ;display message (20 characters to clear whole screen)", 
+		"printer.startcode": ";Generated with Doodle3D (default)\nM109 S{printingTemp} ;set target temperature \n{if heatedBed}M190 S{printingBedTemp} ;set target bed temperature\nG21 ;metric values\nG91 ;relative positioning\nM107 ;start with the fan off\nG28 X0 Y0 ;move X/Y to min endstops\nG28 Z0 ;move Z to min endstops\nG1 Z15 F9000 ;move the platform down 15mm\nG92 E0 ;zero the extruded length\nG1 F200 E10 ;extrude 10mm of feed stock\nG92 E0 ;zero the extruded length again\nG92 E0 ;zero the extruded length again\nG1 F9000\nG90 ;absolute positioning\nM117 Printing Doodle...   ;display message (20 characters to clear whole screen)\n", 
 		"printer.type": "ultimaker"
 	}, 
 	"ultimaker2": {
@@ -19,14 +19,14 @@
 		"printer.dimensions.x": 223, 
 		"printer.dimensions.y": 223, 
 		"printer.dimensions.z": 205, 
-		"printer.endcode": "M107 ;fan off\nG91 ;relative positioning\nG1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure\nG1 Z+5.5 E-5 X-20 Y-20 F9000 ;move Z up a bit and retract filament even more\nG28 ;home the printer\nM84 ;disable axes / steppers\nG90 ;absolute positioning\nM104 S{preheatTemp}\n{if heatedBed}M140 S{preheatBedTemp}\nM117 Done                 ;display message (20 characters to clear whole screen)",
+		"printer.endcode": "M107 ;fan off\nG91 ;relative positioning\nG1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure\nG1 Z+5.5 E-5 X-20 Y-20 F9000 ;move Z up a bit and retract filament even more\nG28 ;home the printer\nM84 ;disable axes / steppers\nG90 ;absolute positioning\nM104 S{preheatTemp}\n{if heatedBed}M140 S{preheatBedTemp}\nM117 Done                 ;display message (20 characters to clear whole screen)\n",
 		"printer.filamentThickness": 2.85, 
 		"printer.heatedbed": true, 
 		"printer.heatup.bed.temperature": 70, 
 		"printer.heatup.enabled": true, 
 		"printer.heatup.temperature": 180, 
 		"printer.nozzleDiameter": 0.4, 
-		"printer.startcode": ";Generated with Doodle3D (ultimaker2)\nM109 S{printingTemp} ;set target temperature \n{if heatedBed}M190 S{printingBedTemp} ;set target bed temperature\nG21 ;metric values\nG90 ;absolute positioning\nM107 ;start with the fan off\nG28 ; home to endstops\nG1 Z15 F9000 ;move the platform down 15mm\nG92 E0 ;zero the extruded length\nG1 F200 E10 ;extrude 10mm of feed stock\nG92 E0 ;zero the extruded length again\nG1 F9000\nM117 Printing Doodle...   ;display message (20 characters to clear whole screen)",
+		"printer.startcode": ";Generated with Doodle3D (ultimaker2)\nM109 S{printingTemp} ;set target temperature \n{if heatedBed}M190 S{printingBedTemp} ;set target bed temperature\nG21 ;metric values\nG90 ;absolute positioning\nM107 ;start with the fan off\nG28 ; home to endstops\nG1 Z15 F9000 ;move the platform down 15mm\nG92 E0 ;zero the extruded length\nG1 F200 E10 ;extrude 10mm of feed stock\nG92 E0 ;zero the extruded length again\nG1 F9000\nM117 Printing Doodle...   ;display message (20 characters to clear whole screen)\n",
 		"printer.type": "ultimaker2"
 	}, 
 	"ultimaker2go": {
@@ -34,14 +34,14 @@
 		"printer.dimensions.x": 120, 
 		"printer.dimensions.y": 120, 
 		"printer.dimensions.z": 115, 
-		"printer.endcode": "M107 ;fan off\nG91 ;relative positioning\nG1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure\nG1 Z+5.5 E-5 X-20 Y-20 F9000 ;move Z up a bit and retract filament even more\nG28 ;home the printer\nM84 ;disable axes / steppers\nG90 ;absolute positioning\nM104 S{preheatTemp}\n{if heatedBed}M140 S{preheatBedTemp}\nM117 Done                 ;display message (20 characters to clear whole screen)",
+		"printer.endcode": "M107 ;fan off\nG91 ;relative positioning\nG1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure\nG1 Z+5.5 E-5 X-20 Y-20 F9000 ;move Z up a bit and retract filament even more\nG28 ;home the printer\nM84 ;disable axes / steppers\nG90 ;absolute positioning\nM104 S{preheatTemp}\n{if heatedBed}M140 S{preheatBedTemp}\nM117 Done                 ;display message (20 characters to clear whole screen)\n",
 		"printer.filamentThickness": 2.85, 
 		"printer.heatedbed": false, 
 		"printer.heatup.bed.temperature": 70, 
 		"printer.heatup.enabled": true, 
-		"printer.heatup.temperature": 180, 
+		"printer.heatup.temperature": 20, 
 		"printer.nozzleDiameter": 0.4, 
-		"printer.startcode": ";Generated with Doodle3D (ultimaker2)\nM109 S{printingTemp} ;set target temperature \n{if heatedBed}M190 S{printingBedTemp} ;set target bed temperature\nG21 ;metric values\nG90 ;absolute positioning\nM107 ;start with the fan off\nG28 ; home to endstops\nG1 Z15 F9000 ;move the platform down 15mm\nG92 E0 ;zero the extruded length\nG1 F200 E10 ;extrude 10mm of feed stock\nG92 E0 ;zero the extruded length again\nG1 F9000\nM117 Printing Doodle...   ;display message (20 characters to clear whole screen)",
+		"printer.startcode": ";Generated with Doodle3D (ultimaker2)\nM109 S{printingTemp} ;set target temperature \n{if heatedBed}M190 S{printingBedTemp} ;set target bed temperature\nG21 ;metric values\nG90 ;absolute positioning\nM107 ;start with the fan off\nG28 ; home to endstops\nG1 Z15 F9000 ;move the platform down 15mm\nG92 E0 ;zero the extruded length\nG1 F200 E10 ;extrude 10mm of feed stock\nG92 E0 ;zero the extruded length again\nG1 F9000\nM117 Printing Doodle...   ;display message (20 characters to clear whole screen)\n",
 		"printer.type": "ultimaker2g0"
 	}
 }

settings/user_settings.json

@@ -15,7 +15,7 @@
 	"printer.temperature": 210.0, 
 	"printer.topThickness": 0.8, 
 	"printer.travelSpeed": 200.0, 
-	"printer.support.accaptanceSize": 1.5, 
+	"printer.support.accaptanceMargin": 1.5, 
 	"printer.support.distanceY": 0.4, 
 	"printer.support.use": true, 
 	"printer.support.gritSize": 6.0, 

src/box.js

@@ -16,6 +16,8 @@ D3D.Box = function (localIp) {
 	"use strict";
 	var scope = this;
 
+	this.alive = false;
+
 	this.batchSize = 512;
 	this.maxBufferedLines = 4096;
 
@@ -30,16 +32,46 @@ D3D.Box = function (localIp) {
 
 	this.loaded = false;
 
-	this.getConfigAll(function (data) {
+	this.init();
-		scope.updateConfig(data);
+};
+D3D.Box.prototype.init = function () {
+	"use strict";
+	var scope = this;
 
-		scope.update();
+	this.getNetworkAlive(function (error, data) {
+		if (error) {
+			scope.alive = false;
+			console.warn(error);
 			
-		scope.loaded = true;
+			setTimeout(function () {
-		if (scope.onload !== undefined) {
+				scope.init();
-			scope.onload();
+			}, 1000);
+
+			return;
 		}
+
+		scope.alive = true;
+
+		scope.getConfigAll(function (error, data) {
+			if (error) {
+				console.warn(error);
+				scope.init();
+			}
+
+			scope.updateConfig(data);
+
+			if (!scope.loaded) {
+				scope.loaded = true;
+				if (scope.onload !== undefined) {
+					scope.onload();
+				}
+			}
+
+			scope.updateLoop();
+		});
 	});
+
+	return this;
 };
 D3D.Box.prototype.updateConfig = function (config) {
 	"use strict";
@@ -50,7 +82,7 @@ D3D.Box.prototype.updateConfig = function (config) {
 
 	return this;
 };
-D3D.Box.prototype.update = function () {
+D3D.Box.prototype.updateLoop = function () {
 	"use strict";
 	var scope = this;
 	//TODO
@@ -73,14 +105,21 @@ D3D.Box.prototype.updateState = function () {
 	"use strict";
 	var scope = this;
 
-	this.getInfoStatus(function (data) {
+	this.getInfoStatus(function (error, data) {
+		if (error) {
+			console.warn(error);
+			scope.init();
+
+			return;
+		}
+
 		scope.status = data;
 
 		if (scope.onupdate !== undefined) {
 			scope.onupdate(data);
 		}
 
-		scope.update();
+		scope.updateLoop();
 	});
 };
 D3D.Box.prototype.print = function (gcode) {
@@ -110,7 +149,15 @@ D3D.Box.prototype.printBatch = function () {
 		"first": ((this.currentBatch === 0) ? true : false), 
 		"gcode": gcode.join("\n"), 
 		"last": ((this.printBatches.length === 0) ? true : false) //only for debug purposes
-	}, function (data) {
+	}, function (error, data) {
+		if (error) {
+			scope.printBatches.unshift(gcode);
+			console.warn(error);
+			scope.init();
+
+			return;
+		}
+
 		console.log("batch sent: " + scope.currentBatch, data);
 
 		if (scope.printBatches.length > 0) {
@@ -126,13 +173,21 @@ D3D.Box.prototype.printBatch = function () {
 };
 D3D.Box.prototype.stopPrint = function (printer) {
 	"use strict";
+	var scope = this;
 
 	this.printBatches = [];
 	this.currentBatch = 0;
 
 	this.setPrinterStop({
-		"gcode": printer.getEndCode().join("\n")
+		"gcode": printer.getEndCode()
-	}, function (data) {
+	}, function (error, data) {
+		if (error) {
+			console.warn(error);
+			scope.init();
+
+			return;
+		}
+
 		console.log("Printer stop command sent");
 	});
 

src/gcode.js

@@ -12,7 +12,7 @@
 D3D.GCode = function () {
 	"use strict";
 
-	this.gcode = [];
+	this.gcode = "";
 	this.current = {};
 
 	this.extruder = 0.0;
@@ -38,7 +38,7 @@ D3D.GCode.prototype.addGCode = function (command) {
 
 	str = str.join(" ");
 	if (str.length > 0) {
-		this.gcode.push(str);
+		this.gcode += str + "\n";
 	}
 };
 D3D.GCode.prototype.setSettings = function (printer) {
@@ -180,5 +180,5 @@ D3D.GCode.prototype.retract = function () {
 D3D.GCode.prototype.getGCode = function () {
 	"use strict";
 
-	return this.settings.getStartCode().concat(this.gcode, this.settings.getEndCode());
+	return this.settings.getStartCode() + this.gcode + this.settings.getEndCode();
 };

src/paths.js

@@ -8,7 +8,7 @@
 ******************************************************/
 
 D3D.Paths = function (paths, closed) {
-	"use strict";
+	'use strict';
 
 	Array.call(this);
 
@@ -18,7 +18,7 @@ D3D.Paths = function (paths, closed) {
 };
 D3D.Paths.prototype = Object.create(Array.prototype);
 D3D.Paths.prototype.setPaths = function (paths) {
-	"use strict";
+	'use strict';
 
 	for (var i = 0; i < paths.length; i ++) {
 		var path = paths[i];
@@ -30,7 +30,7 @@ D3D.Paths.prototype.setPaths = function (paths) {
 	return this;
 };
 D3D.Paths.prototype.clip = function (path, type) {
-	"use strict";
+	'use strict';
 
 	var solution = new ClipperLib.Paths();
 
@@ -42,27 +42,27 @@ D3D.Paths.prototype.clip = function (path, type) {
 	return new D3D.Paths(solution, this.closed);
 };
 D3D.Paths.prototype.union = function (path) {
-	"use strict";
+	'use strict';
 
 	return this.clip(path, ClipperLib.ClipType.ctUnion);
 };
 D3D.Paths.prototype.difference = function (path) {
-	"use strict";
+	'use strict';
 
 	return this.clip(path, ClipperLib.ClipType.ctDifference);
 };
 D3D.Paths.prototype.intersect = function (path) {
-	"use strict";
+	'use strict';
 
 	return this.clip(path, ClipperLib.ClipType.ctIntersection);
 };
 D3D.Paths.prototype.xor = function () {
-	"use strict";
+	'use strict';
 
 	return this.clip(path, ClipperLib.ClipType.ctXor);
 };
 D3D.Paths.prototype.offset = function (offset) {
-	"use strict";
+	'use strict';
 
 	var solution = new ClipperLib.Paths();
 	var co = new ClipperLib.ClipperOffset(1, 1);
@@ -72,28 +72,28 @@ D3D.Paths.prototype.offset = function (offset) {
 	return new D3D.Paths(solution);
 };
 D3D.Paths.prototype.scaleUp = function (factor) {
-	"use strict";
+	'use strict';
 
 	var path = ClipperLib.JS.ScaleUpPaths(this, factor);
 
 	return this;
 };
 D3D.Paths.prototype.scaleDown = function (factor) {
-	"use strict";
+	'use strict';
 
 	var path = ClipperLib.JS.ScaleDownPaths(this, factor);
 
 	return this;
 };
 D3D.Paths.prototype.lastPoint = function () {
-	"use strict";
+	'use strict';
 
 	var lastPath = this[this.length - 1];
 	var lastPoint = this.closed ? lastPath[0] : lastPath[lastPath.length - 1];
 	return new THREE.Vector2(lastPoint.X, lastPoint.Y);
 };
 D3D.Paths.prototype.optimizePath = function (start) {
-	"use strict";
+	'use strict';
 
 	var optimizedPaths = new D3D.Paths([], this.closed);
 	var donePaths = [];
@@ -161,7 +161,7 @@ D3D.Paths.prototype.optimizePath = function (start) {
 	return optimizedPaths;
 };
 D3D.Paths.prototype.areas = function () {
-	"use strict";
+	'use strict';
 
 	var areas = [];
 
@@ -176,7 +176,7 @@ D3D.Paths.prototype.areas = function () {
 };
 D3D.Paths.prototype.tresholdArea = function (minArea) {
 	//code not tested yet
-	"use strict";
+	'use strict';
 
 	for (var i = 0; i < this.length; i ++) {
 		var shape = this[i];
@@ -192,7 +192,7 @@ D3D.Paths.prototype.tresholdArea = function (minArea) {
 	return areas;
 };
 D3D.Paths.prototype.join = function (path) {
-	"use strict";
+	'use strict';
 
 	for (var i = 0; i < path.length; i ++) {
 		this.push(path[i]);
@@ -201,17 +201,17 @@ D3D.Paths.prototype.join = function (path) {
 	return this;
 };
 D3D.Paths.prototype.clone = function () {
-	"use strict";
+	'use strict';
 
 	return new D3D.Paths(ClipperLib.JS.Clone(this), this.closed);
 };
 D3D.Paths.prototype.bounds = function () {
-	"use strict";
+	'use strict';
 
 	return ClipperLib.Clipper.GetBounds(this);
 };
 D3D.Paths.prototype.boundSize = function () {
-	"use strict";
+	'use strict';
 
 	var bounds = this.bounds();
 
@@ -221,7 +221,7 @@ D3D.Paths.prototype.boundSize = function () {
 	return width * height;
 };
 D3D.Paths.prototype.draw = function (context, color) {
-	"use strict";
+	'use strict';
 
 	context.strokeStyle = color;
 	for (var i = 0; i < this.length; i ++) {

src/printer.js

@@ -27,7 +27,7 @@ D3D.Printer.prototype.getStartCode = function () {
 	var gcode = this.config["printer.startcode"];
 	gcode = this.subsituteVariables(gcode);
 
-	return gcode.split("\n");
+	return gcode;
 };
 D3D.Printer.prototype.getEndCode = function () {
 	"use strict";
@@ -36,7 +36,7 @@ D3D.Printer.prototype.getEndCode = function () {
 
 	gcode = this.subsituteVariables(gcode);
 
-	return gcode.split("\n");
+	return gcode;
 };
 D3D.Printer.prototype.subsituteVariables = function (gcode) {
 	"use strict";

src/slicer.js

@@ -24,24 +24,26 @@ D3D.Slicer.prototype.setMesh = function (geometry, matrix) {
 		geometry = new THREE.Geometry().fromBufferGeometry(geometry);
 	}
 
-	//apply mesh matrix on geometry;
-	geometry.applyMatrix(matrix);
-	geometry.mergeVertices();
-	geometry.computeFaceNormals();
-	geometry.computeBoundingBox();
-	
 	/*
+	geometry.computeFaceNormals();
 	for (var i = 0; i < geometry.faces.length; i ++) {
 		var face = geometry.faces[i];
 		var normal = face.normal;
 
 		if (normal.x === 0 && normal.y === 0 && normal.z === 0) {
 			geometry.faces.splice(i, 1);
+			console.log("Tets");
 			i --;
 		}
 	}
 	*/
 
+	//apply mesh matrix on geometry;
+	geometry.applyMatrix(matrix);
+	geometry.mergeVertices();
+	geometry.computeFaceNormals();
+	geometry.computeBoundingBox();
+
 	this.geometry = geometry;
 
 	//get unique lines from geometry;
@@ -189,14 +191,17 @@ D3D.Slicer.prototype.slice = function (layerHeight, height) {
 							var a = new THREE.Vector2(intersection.x, intersection.y);
 							var b = intersections[index];
 
-							if (a.distanceTo(b) === 0) {
+							var faceNormal = faceNormals[Math.floor(j/2)];
+
+							console.log();
+
+							if (a.distanceTo(b) === 0 || faceNormal.equals(new THREE.Vector2(0, 0))) {
 								connects = connects.concat(this.lines[index].connects);
 								faceNormals = faceNormals.concat(this.lines[index].normals);
 								index = -1;
 							}
 							else {
 								var normal = a.sub(b).normal().normalize();
-								var faceNormal = faceNormals[Math.floor(j/2)];
 
 								if (normal.dot(faceNormal) >= 0) {
 								//if (true) {
@@ -290,7 +295,7 @@ D3D.Slicer.prototype.slicesToData = function (slices, printer) {
 	var topThickness = printer.config["printer.topThickness"];
 	var useSupport = printer.config["printer.support.use"];
 	var supportGritSize = printer.config["printer.support.gritSize"] * scale;
-	var supportAccaptanceSize = printer.config["printer.support.accaptanceSize"] * scale;
+	var supportAccaptanceMargin = printer.config["printer.support.accaptanceMargin"] * scale;
 	var supportMargin = printer.config["printer.support.margin"] * scale;
 	var plateSize = printer.config["printer.support.plateSize"] * scale;
 	var supportDistanceY = printer.config["printer.support.distanceY"];
@@ -441,12 +446,16 @@ D3D.Slicer.prototype.slicesToData = function (slices, printer) {
 				var slicePart = slice[i];
 				var outerLayer = slicePart.outerLayer;
 
-				var overlap = supportSkin.offset(supportAccaptanceSize).intersect(outerLayer);
+				var overlap = supportSkin.offset(supportAccaptanceMargin).intersect(outerLayer);
 				var overhang = outerLayer.difference(overlap);
 
 				if (overlap.length === 0 || overhang.length > 0) {
-					var supportArea = outerLayer.difference(supportSkin.intersect(outerLayer));
+					//var supportArea = outerLayer.difference(supportSkin.intersect(outerLayer));
-					supportAreas = supportAreas.union(supportArea);
+					//supportAreas = supportAreas.union(supportArea);
+
+					//supportAreas = supportAreas.union(overhang);
+
+					supportAreas = supportAreas.union(overhang.offset(supportAccaptanceMargin).intersect(outerLayer));
 				}
 			}
 		}

src/slicerworker.js

@@ -17,9 +17,12 @@ D3D.SlicerWorker = function () {
 
 			case 'GCODE':
 				if (scope.onfinish !== undefined) {
-					var gcode = event.data['gcode'];
+					var reader = new FileReader();
-
+					reader.addEventListener("loadend", function() {
-					scope.onfinish(gcode);
+						var gcode = reader.result.split("\n");
+						scope.onfinish(gcode);
+					});
+					reader.readAsBinaryString(event.data['gcode']);
 				}
 			break;
 		}

src/utils.js

@@ -14,37 +14,6 @@ var D3D = {
 function sendAPI (url, data, callback) {
 	"use strict";
 
-	/*
-	var form = new FormData();
-
-	for (var i in data) {
-		form.append(i, JSON.stringify(data[i]));
-	}
-
-	var request = new XMLHttpRequest();
-	request.open('POST', url, true);
-	request.send(data);
-	request.onreadystatechange = function () {
-		if (request.readyState === 4 && request.status === 200) {
-			var response = JSON.parse(request.responseText);
-
-			if (response.status === "success") {
-				if (callback !== undefined) {
-					callback(response.data);
-				}
-			}
-			else {
-				console.warn(response.msg);
-			}
-		}
-		else {
-			console.log(request);
-			console.warn("Failed connecting to " + url);
-			//sendAPI(url, data, callback);
-		}
-	};
-	*/
-
 	$.ajax({
 		url: url, 
 		type: "POST", 
@@ -54,44 +23,20 @@ function sendAPI (url, data, callback) {
 		success: function (response) {
 			if (response.status === "success") {
 				if (callback !== undefined) {
-					callback(response.data);
+					callback(null, response.data);
 				}
 			}
 			else {
-				console.warn(response.msg);
+				callback(response.msg);
 			}
 		}
 	}).fail(function () {
-		console.warn("Failed connecting to " + url);
+		callback("Failed connecting to " + url);
-		sendAPI(url, data, callback);
 	});
 }
 
 function getAPI (url, callback) {
 	"use strict";
-	/*
-	var request = new XMLHttpRequest();
-	request.open('GET', url, true);
-	request.send();
-	request.onreadystatechange = function () {
-		if (request.readyState === 4 && request.status === 200) {
-			var response = JSON.parse(request.responseText);
-
-			if (response.status === "success") {
-				if (callback !== undefined) {
-					callback(response.data);
-				}
-			}
-			else {
-				console.warn(response.msg);
-			}
-		}
-		else {
-			console.warn("Failed connecting to " + url);
-			sendAPI(url, callback);
-		}
-	};*/
-
 	
 	$.ajax({
 		url: url, 
@@ -100,18 +45,16 @@ function getAPI (url, callback) {
 		success: function (response) {
 			if (response.status === "success") {
 				if (callback !== undefined) {
-					callback(response.data);
+					callback(null, response.data);
 				}
 			}
 			else {
-				console.warn(response.msg);
+				callback(response.msg);
 			}
 		}
 	}).fail(function () {
-		console.warn("Failed connecting to " + url);
+		callback("Failed connecting to " + url);
-		getAPI(url, callback);
 	});	
-	
 }
 
 function loadSettings (url, callback) {

webworker/worker.js

@@ -42,10 +42,11 @@ self.addEventListener("message", function (event) {
 
 		case "SLICE":
 			var gcode = slicer.getGCode(printer);
+			var blob = new Blob([gcode], {type: 'text/html'});
 
 			self.postMessage({
 				"cmd": "GCODE", 
-				"gcode": gcode
+				"gcode": blob
 			});
 		break;
 

webworker_test.html

@@ -92,7 +92,7 @@ function init () {
 	};
 
 	var loader = new THREE.STLLoader();
-	loader.load('models/robot.stl', function (geometry) {
+	loader.load('models/pokemon/pikachu.stl', function (geometry) {
 		//var geometry = new THREE.TorusGeometry(20, 10, 30, 30).clone();
 
 		var material = new THREE.MeshPhongMaterial({color: 0x00ff00, wireframe: false});