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  1. I don't understand how the startup g code commands could be "accidentally" changed, especially by a supposed professional. I am 3d printing professionally and this is in the way of being professional. When a print fails 2/3 of the way through, which is several days long this is a professional waste of time. As for restarting a print with new code it is actually much easier than you think. The worst that can happen (if you are a professionally skilled) is the restart layer deviates in layer height by like 50 microns, which is either negligible of able to be easily sanded off. I've even done it
  2. It seems that the UM3 hardware includes gcode at the very beginning of every print that is outside of the code generated by slicing in Cura. This includes the wipe, the auto leveling and printcore and bed plate heat checks. I would propose that this part of the hardware gcode be put back into the slicer-generated software gcode to improve the machine's versatility. These are the reasons I am having a problem with hardware gcode: 1. Continuing a print after the filament extrusion fails: When extrusion fails but the gcode keeps executing, the machine operator will often discover the failure
  3. First problem: Cura 3.2 will only run while its still open for the first time immediately after downloading. It won't open if you try to run it another time. Second problem: is that I "prepared" a model in Cura and it only calculated a thin shell along Z planes of the outer walls of the model. My model is solid and not the problem. I have prepared hundreds of CAD models for/in Cura before. Third problem: is "Extra Fine" setting was missing from the layer height choices. Only the other 3 defaults were there. Fourth thing is just a dislike: Back in Cura 2 the
  4. Ultimaker headquarters has emailed me saying that Ultimaker 3 can safely go up to 350°C. I have been testing out PVDF for the last couple weeks using 345°C. It seems to be okay. Between 345°C and 350°C the software starts to give temperature errors
  5. Ok, that is interesting... And to add to ideas, maybe the hot tip of the nozzle could also be used to physically micromix 2 colours right on the model as its printing. Could playing with the nozzle height and an overheated nozzle be used to truly mix colours by re-melting the layer below and injecting new colour into it?? Might be tricky but probably possible.
  6. Hi, I am designing custom internal structures in my CAD models, but Cura seems to ignore internal voids in my CAD models and just prints solids instead. For example, one of my models is a brick with 5000 pores throughout it resembling a foam. Cura/UM3 just prints the bubbles that break through the outside wall but neglects the fully enclosed bubbles. I need to make custom internal structures for engineering lightweight objects with optimized strength and the supports and infills are too random and arbitrarily designed for what I need. Is there a setting that I have to change to recognize inter
  7. This is just a detailed 2-colour print. I've been planning to make something like this but it would be time-consuming. I am looking forward to software that can easily fast-track making models like this with a new process, but you can make gray-scale or colour-gradients using no new software. All you have to do is design it in CAD with the same-coloured layers unioned and make sure that your layer height in Cura matches your layer or layer-multiple heights in the model and then merge them in Cura for a regular 2-colour print.
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