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aag

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  • Field of Work
    Education
  • Country
    CH
  • 3D printer
    Ultimaker S5

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  1. I have changed some settings, and now Cura is making a brim with Extruder 2 (PVA) surrounded by a second brim with Extruder 1. However I do not see how I can revert to normal, which would be an Extruder-1-only brim. Can somebody enlighten me? Thanks in advance
  2. Thank you for your advice. I may have to reprogram the core via SSH then. However, I find it extremely troubling that a $150 factory-sealed original Ultimaker core is wrongly programmed to a nozzle size that doesn't even exist. Is this a common occurrence? If so, it's quite frightening. Alternatively, I am worried that the core may be OK and something inside the printer is messed up - which may potentially be worse...
  3. I have replaced a worn-out AA0.4 core on my UMS5 with a new one. However the S5 recognizes as "AA0.6", which doesn't even seem to exist (I know only of a AA0.8 and a CC0.6). I switched the printer off completely and rebooted it, and the issue remains. I also removed the AA0.4 and inserted it again using the Change routine, to no avail. Now I am manually overriding the AA0.6 directive on every print, and that works more-or-less, but it is a terrible nuisance. What can I do? Thanks for any advice!
  4. I need to print this small cylinder with tough PLA +PLA. The outer tube is just an ad-hoc support that I made in order to minimize the likelihood that it gets knocked over. I was hoping that Cura fill the space between the cylinder and the tube with PVA, but it doesn't. Is there a way I can force it to produce a PVA support there?
  5. Modified from a previous design published by others. I have shortened and broadened the retainer clip, so that it wouldn't crash against the glass doors when printing an object that reaches to the very front of the build plate. Note that this design is specific to the S5. I strongly advise to always use this retainer clip. I have completely destroyed a printhead because the front disengaged from its wimpy little magnets and crashed into the model (fortunately UM accepted that this was a warranty issue). https://grabcad.com/library/1033247
  6. try my "manual push" trick. It will cost you 10 seconds, and it is likely to solve your issue,
  7. I found out what happens to the PVA extruder. When you insert a new PVA, sometimes the extruder has a huge resistance. Then the gripper wheels slide over the filament, and everything comes to a halt. My solution is to release the gripper, and push the PVA manually until it starts extruding. At that point, I engage the gripper, and then everything works fine.
  8. thanks for your help! Just in case, here is the Fusion360 model: https://a360.co/2IiEu6X
  9. thank you so much for helping me! Can you elaborate? I have never used the mesh tool model checker, and I do not understand how this problem comes about and (more importantly) what can I do to remedy... 😞
  10. here we go: https://www.dropbox.com/s/6zh07kzyrb8liw9/CuraHoles.3mf
  11. I am dealing with a weird artifact. I am making a plate with evenly spaced holes. The outermost row of holes comes out nicely, but in all other holes the infill appears to extend within the holes. The original design is in Fusion360. What might be the issue here? I am attaching a screenshot from Cura from above.
  12. 400 µm isotropic clearance is perfect for ToughPLA on ToughPLA, where both the male and the female parts will shrink a bit. In the case depicted above, a metal male part pairs with a female ToughPLA scaffold. I am currently trying 300 µm isotropic, but for a flush fit I suspect that the minimal vertical clearance is going to be smaller than the horizontal one.
  13. Is there a reliable way to calculate the minimal clearance of slots and plugs for UM5S prints, as a function of printhead, layer height and layer width? As an example, take the following pic, where a metal bar is inserted into a ToughPLA slot. I typically give 0.4mm clearance on all sides but I could go a bit lower. It also seems to me that vertical and horizontal miminal clearances differ. I know that I could find out all this by trial-and-error but maybe there is a mathematical option that would save me from reinventing the wheel...
  14. Cura seems to automatically assign pre-defined colors to materials, and these colors are not necessarily easy to read - especially for color-blind people, who make up 4% of the Caucasian male population (it's an X-chromosomal trait) including yours truly. Is there a way to force Cura to use specific user-defined colors for each material in the sliced model? Thanks for any advice!
  15. This may be a detail, but details are also important. The Fusion engine outputs files with very long names. Cura prints the file name on top of the duration info, resulting in garbled text. Text wrapping would be a simple way to prevent this.
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