diff --git a/Cura/gui/preview3d.py b/Cura/gui/preview3d.py
index 436ca81..846017a 100644
--- a/Cura/gui/preview3d.py
+++ b/Cura/gui/preview3d.py
@@ -209,7 +209,6 @@ class previewPanel(wx.Panel):
 			obj.filename = filelist[idx]
 		
 		self.gcodeFilename = sliceRun.getExportFilename(filelist[0])
-		self.logFilename = sliceRun.getExportFilename(filelist[0], "log")
 		#Do the STL file loading in a background thread so we don't block the UI.
 		if self.loadThread != None and self.loadThread.isAlive():
 			self.loadThread.join()
@@ -246,21 +245,20 @@ class previewPanel(wx.Panel):
 			self.gcodeDirty = False
 			self.gcode = gcode
 			self.gcodeDirty = True
-			wx.CallAfter(self.updateToolbar)
-			wx.CallAfter(self.glCanvas.Refresh)
-		elif not os.path.isfile(self.gcodeFilename):
-			self.gcode = None
-		
-		if os.path.isfile(self.logFilename):
+
 			errorList = []
-			for line in open(self.logFilename, "rt"):
-				res = re.search('Model error\(([a-z ]*)\): \(([0-9\.\-e]*), ([0-9\.\-e]*), ([0-9\.\-e]*)\) \(([0-9\.\-e]*), ([0-9\.\-e]*), ([0-9\.\-e]*)\)', line)
+			for line in open(self.gcodeFilename, "rt"):
+				res = re.search(';Model error\(([a-z ]*)\): \(([0-9\.\-e]*), ([0-9\.\-e]*), ([0-9\.\-e]*)\) \(([0-9\.\-e]*), ([0-9\.\-e]*), ([0-9\.\-e]*)\)', line)
 				if res != None:
 					v1 = util3d.Vector3(float(res.group(2)), float(res.group(3)), float(res.group(4)))
 					v2 = util3d.Vector3(float(res.group(5)), float(res.group(6)), float(res.group(7)))
 					errorList.append([v1, v2])
 			self.errorList = errorList
+
+			wx.CallAfter(self.updateToolbar)
 			wx.CallAfter(self.glCanvas.Refresh)
+		elif not os.path.isfile(self.gcodeFilename):
+			self.gcode = None
 	
 	def loadProgress(self, progress):
 		pass
diff --git a/Cura/gui/projectPlanner.py b/Cura/gui/projectPlanner.py
index 4588cc9..ff3703a 100644
--- a/Cura/gui/projectPlanner.py
+++ b/Cura/gui/projectPlanner.py
@@ -1018,6 +1018,7 @@ class ProjectSliceProgressWindow(wx.Frame):
 		cost = gcode.calculateCost()
 		if cost != False:
 			status += "\nCost: %s" % (cost)
+		profile.replaceGCodeTags(self.resultFilename, gcode)
 		wx.CallAfter(self.statusText.SetLabel, status)
 		wx.CallAfter(self.OnSliceDone)
 	
diff --git a/Cura/gui/sliceProgessPanel.py b/Cura/gui/sliceProgessPanel.py
index b195c9d..a1f36aa 100644
--- a/Cura/gui/sliceProgessPanel.py
+++ b/Cura/gui/sliceProgessPanel.py
@@ -156,17 +156,19 @@ class WorkerThread(threading.Thread):
 				return
 			line = p.stdout.readline()
 		self.returnCode = p.wait()
-		logfile = open(sliceRun.getExportFilename(self.filelist[self.fileIdx], "log"), "w")
-		for logLine in self.progressLog:
-			logfile.write(logLine)
-			logfile.write('\n')
-		logfile.close()
 		self.fileIdx += 1
 		if self.fileIdx == len(self.cmdList):
 			if len(self.filelist) > 1:
 				self._stitchMultiExtruder()
+			gcodeFilename = sliceRun.getExportFilename(self.filelist[0])
+			gcodefile = open(gcodeFilename, "a")
+			for logLine in self.progressLog:
+				if logLine.startswith('Model error('):
+					gcodefile.write(';%s\n' % (logLine))
+			gcodefile.close()
 			self.gcode = gcodeInterpreter.gcode()
-			self.gcode.load(sliceRun.getExportFilename(self.filelist[0]))
+			self.gcode.load(gcodeFilename)
+			profile.replaceGCodeTags(gcodeFilename, self.gcode)
 			wx.CallAfter(self.notifyWindow.OnSliceDone, self)
 		else:
 			self.run()
diff --git a/Cura/util/profile.py b/Cura/util/profile.py
index f40f0e3..5217857 100644
--- a/Cura/util/profile.py
+++ b/Cura/util/profile.py
@@ -83,6 +83,9 @@ alterationDefault = {
 #######################################################################################
 	'start.gcode': """;Sliced at: {day} {date} {time}
 ;Basic settings: Layer height: {layer_height} Walls: {wall_thickness} Fill: {fill_density}
+;Print time: {print_time}
+;Filament used: {filament_amount}m {filament_weight}g
+;Filament cost: {filament_cost}
 G21        ;metric values
 G90        ;absolute positioning
 M107       ;start with the fan off
@@ -392,6 +395,14 @@ def replaceTagMatch(m):
 		return time.strftime('%d %b %Y')
 	if tag == 'day':
 		return time.strftime('%a')
+	if tag == 'print_time':
+		return '#P_TIME#'
+	if tag == 'filament_amount':
+		return '#F_AMNT#'
+	if tag == 'filament_weight':
+		return '#F_WGHT#'
+	if tag == 'filament_cost':
+		return '#F_COST#'
 	if tag in ['print_speed', 'retraction_speed', 'travel_speed', 'max_z_speed', 'bottom_layer_speed', 'cool_min_feedrate']:
 		f = getProfileSettingFloat(tag) * 60
 	elif isProfileSetting(tag):
@@ -404,6 +415,20 @@ def replaceTagMatch(m):
 		return str(int(f))
 	return str(f)
 
+def replaceGCodeTags(filename, gcodeInt):
+	f = open(filename, 'r+')
+	data = f.read(2048)
+	data = data.replace('#P_TIME#', ('%5d:%02d' % (int(gcodeInt.totalMoveTimeMinute / 60), int(gcodeInt.totalMoveTimeMinute % 60)))[-8:])
+	data = data.replace('#F_AMNT#', ('%8.2f' % (gcodeInt.extrusionAmount / 1000))[-8:])
+	data = data.replace('#F_WGHT#', ('%8.2f' % (gcodeInt.calculateWeight() * 1000))[-8:])
+	cost = gcodeInt.calculateCost()
+	if cost == False:
+		cost = 'Unknown'
+	data = data.replace('#F_COST#', ('%8s' % (cost.split(' ')[0]))[-8:])
+	f.seek(0)
+	f.write(data)
+	f.close()
+
 ### Get aleration raw contents. (Used internally in Cura)
 def getAlterationFile(filename):
 	#Check if we have a configuration file loaded, else load the default.