Update how the printing time remaining estimate is calculated. This gives better accurate results as the first part of the print is not added in the estimate, removing the heating and startup-code from the equasion.

Cura/gui/printWindow.py

@@ -352,13 +352,12 @@ class printWindow(wx.Frame):
 				status += 'Line: -/%d\n' % (len(self.gcodeList))
 		else:
 			printTime = self.machineCom.getPrintTime() / 60
-			printTimeTotal = printTime * len(self.gcodeList) / self.machineCom.getPrintPos()
-			printTimeLeft = printTimeTotal - printTime
+			printTimeLeft = self.machineCom.getPrintTimeRemainingEstimate()
 			status += 'Line: %d/%d %d%%\n' % (self.machineCom.getPrintPos(), len(self.gcodeList), self.machineCom.getPrintPos() * 100 / len(self.gcodeList))
 			if self.currentZ > 0:
 				status += 'Height: %0.1f\n' % (self.currentZ)
 			status += 'Print time: %02d:%02d\n' % (int(printTime / 60), int(printTime % 60))
-			if printTime < 1:
+			if printTimeLeft == None:
 				status += 'Print time left: Unknown\n'
 			else:
 				status += 'Print time left: %02d:%02d\n' % (int(printTimeLeft / 60), int(printTimeLeft % 60))

Cura/gui/simpleMode.py

@@ -180,9 +180,9 @@ class simpleModeWindow(configBase.configWindowBase):
 		put('support', 'None')
 		#put('machine_center_x', '100')
 		#put('machine_center_y', '100')
-		put('retraction_enable', 'True')
+		put('retraction_enable', 'False')
 		put('retraction_min_travel', '5.0')
-		put('retraction_speed', '13.5')
+		put('retraction_speed', '40.0')
 		put('retraction_amount', '4.5')
 		put('retraction_extra', '0.0')
 		put('travel_speed', '150')

Cura/util/machineCom.py

@@ -161,6 +161,7 @@ class MachineCom(object):
 		self._currentZ = -1
 		self._heatupWaitStartTime = 0
 		self._heatupWaitTimeLost = 0.0
+		self._printStartTime100 = None
 		
 		self.thread = threading.Thread(target=self._monitor)
 		self.thread.daemon = True
@@ -226,7 +227,15 @@ class MachineCom(object):
 		return self._gcodePos
 	
 	def getPrintTime(self):
-		return time.time() - self._printStartTime - self._heatupWaitTimeLost
+		return time.time() - self._printStartTime
+
+	def getPrintTimeRemainingEstimate(self):
+		if self._printStartTime100 == None or self.getPrintPos() < 200:
+			return None
+		printTime = (time.time() - self._printStartTime100) / 60
+		printTimeTotal = printTime * (len(self._gcodeList) - 100) / (self.getPrintPos() - 100)
+		printTimeLeft = printTimeTotal - printTime
+		return printTimeLeft
 	
 	def getTemp(self):
 		return self._temp
@@ -464,6 +473,8 @@ class MachineCom(object):
 		if self._gcodePos >= len(self._gcodeList):
 			self._changeState(self.STATE_OPERATIONAL)
 			return
+		if self._gcodePos == 100:
+			self._printStartTime100 = time.time()
 		line = self._gcodeList[self._gcodePos]
 		if type(line) is tuple:
 			self._printSection = line[1]
@@ -498,6 +509,7 @@ class MachineCom(object):
 			return
 		self._gcodeList = gcodeList
 		self._gcodePos = 0
+		self._printStartTime100 = None
 		self._printSection = 'CUSTOM'
 		self._changeState(self.STATE_PRINTING)
 		self._printStartTime = time.time()