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patrick181

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Posts posted by patrick181

    USBPrinterOutputDevice.py edit the cancel routine?

    in UltiMaker Cura

    Posted · Edited by patrick181

    Hi

    UM2 with the + upgrade kit

    Firmware 3.3.0

    Cura 4.11

     

    When printing and Aborting from a USB session, the bed does not lower but the head will home to the corner. If the cancel action is somewhere on layer 1-10ish the head hits the aft buildplate clip (because its not lowering the bed).

     

    USBPrinterOutputDevice.py file shows:

     

    def cancelPrint(self):
            self._gcode_position = 0
            self._gcode.clear()
            self._printers[0].updateActivePrintJob(None)
            self._is_printing = False
            self._paused = False

            # Turn off temperatures, fan and steppers
            self._sendCommand("M140 S0")
            self._sendCommand("M104 S0")
            self._sendCommand("M107")

            # Home XY to prevent nozzle resting on aborted print
            # Don't home bed because it may crash the printhead into the print on printers that home on the bottom
            self.printers[0].homeHead()
            self._sendCommand("M84")

     

    Im not a code expert but I think something can be added at the end of this. Could someone point me in the right direction?

     

    Thank you,

     

    Patrick

     

    Tweak At Z reset at height

    in UltiMaker Cura

    Posted

    UM2

    Cura 15.04

    TweakatZ 4.0.2

    I have multiple prints of the same part that need fans on at 9mm Z. Problem I'm having is that TweakatZ does not reset at the beginning of the next print/part and leaves the fans on for the remaining parts. Cura is set for Print One At a Time. Any ideas how to accomplish this?

    TweakatZ documentation indicates a "Reset previous values when printing one-at-a-time" if this the same thing?

    Captur22222e.thumb.JPG.7d6a6f40443d2a0fdd04208afec91dcd.JPG

    Captur22222e.thumb.JPG.7d6a6f40443d2a0fdd04208afec91dcd.JPG

    Company update

    in Official news

    Posted · Edited by Guest

    I appreciate the heads up from Ultimaker.  However when I look at this print head I see a design decision being made to market towards a dual extrusion setup vs optimized cooling for a single setup.  There is no apex of flow here therefore, to me, makes a lower quality result than what is possible. That is against the mantra Ultimaker is bringing with upper tier results out-of-the-box. At this price point I think a revision of the fan mount is in order to compensate for the decision that has been made not to carry on with dual extrusion.

    A retooling of the bends in the current plate steel fan mount should work and I hope this is considered before a v3 is announced.

    My2c

     

    If you shut the door on dual extrusion for UM2, also consider a minor redesign of the head to make it symetrical. Currently users have a less optimal airflow caused by the "design for dual extrusion". Would only be fair at least for new customers, certainly for GO and EXTENDED.

    I would not mind paying a few euros for this simple modification.

     

     

    ...

    My next question is - would UM re-design the printhead of UM2 to allow better cooling, among the rest?

     

    Tweak at Z fans not coming on

    in UltiMaker Cura

    Posted

    What is your layer height? Assuming it is 0.1mm then you have Cura still ramping up the fans where you set the tweak and the fans are reduced again after the tweak. TweakAtZ does not override Cura settings which come after the tweak.

     

    "Fans only seem to come on using the "Cool" section of Cura and no Tweak at Z activated."

    I'm mistaken, the fans did not come on at all with either control. I found that I had fans zeroed in the custom material menu on the UM2 itself. They need to be set to 100%. This seems to override any commands in the gcode. Whats odd though is that the gcode can override the other settings.

    Fan limitations -UM2-

    in Improve your 3D prints

    Posted

    Thanks, I did some "google images" comparisons. There seems to be a tiny difference in how some of these steel units are bent to form at the factory. But the difference is under 1mm so I don't think its effecting anything. I will try some cheap methods to get some air blast closer to the right side of the nozzle before trying one of the upgraded shrouds.

    Fan limitations -UM2-

    in Improve your 3D prints

    Posted · Edited by Guest

    I found a flaw in the fan design.  Having trouble printing anything with a sphere. Print starts off well up to layer 8 then I see perfection on the left and droopage I the right.  It's obvious that right side needs direct cooling like the left for prints like this.  Trying to print the killstix Xbox controller stick extenders offered up at thingiverse.

    Any way around this issue other than to print the updated shrouds?

    the third fan

    in Coffee corner

    Posted

    Hi @Patrick181,

    if I am not mistaken it is a combination between a firmware upgrade but also a change in the electronics.

     

    I found another thread that confirms this. Apparently they redesigned the electronics for the release of the "Go" unit post 15.02. I can attest as I did update last night to 15.04 and found no change in behavior of my extruded fan which is always on.

    Any advice on modeling support structures?

    in Design for Additive Manufacturing

    Posted · Edited by Guest

    Any advice out there on creating support structures in the model?  Like support style or patterns that work best?  Material efficient methods?

    I created these rings to hold up the countersunk ledge.  I sank them 0.1mm below the ledge but they still stuck pretty good and I had to drill them out.

    (The face seen is touching the build plate)

    Capture2.thumb.jpg.6b62818ce565e3adbb3a194bd13bc2f4.jpg

    Thanks

    Capture2.thumb.jpg.6b62818ce565e3adbb3a194bd13bc2f4.jpg

    UM2 ABS End-of-Job Retraction Issue

    in UltiMaker 3D printers

    Posted

    Version is 15.02.01

    Thank you. I think its a combination of both your replies. This was my first attempt with ABS that failed 4 times on the factory 260c setting with no brim, I paused/abort the job each time. I do think that the initial retraction is further than the "speed" load action and is a bug. The PLA settings are perfect on this machine, I dont have an issue or failed print yet on that stuff. (knock on wood)

     

    UM2 ABS End-of-Job Retraction Issue

    in UltiMaker 3D printers

    Posted

     

    • UM2
    • Ultimaker Brand 2.85 Black ABS
    • Bed 90c
    • Extruder 250c

     

    Im having some trouble with the retraction of filiment during the completion (or cancellation) of an ABS print job. What is does is when the job is finished it retracts the filiment out of the nozzle. When I go to run another job, it does not push it back down far enough and ends up starting the print with no extrusion. What I have to do is go into the Advanced menu and move the filiment back in until I see it in the bowden tube just before the extruder. I set the standard retraction from 4.25mm to 3mm. I'm ssuming this is the area of setting for this problem but I think im wrong as the end-of-job retraction seems much more than 4.25mm. Is this correct to solve this issue?

    Thanks

     

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