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  1. It's printing again. I owe the two of you big time! If anyone from the official FAQ is monitoring these topics - this would be a nice extension to https://support.ultimaker.com/hc/en-us/articles/360012015880.
  2. Interesting, then I'll put it back in (it's fairly clean by now) and heat up the print core to see what happens. Thanks for the tip!
  3. Hey, I guess you were right. I went to System -> Printhead -> Fans and ramped up the fans - the front fan wouldn't move. The video is awesome, I already disassembled it with this guideline, which is also nice: https://support.ultimaker.com/hc/en-us/articles/360012826479-Replace-the-axial-fan-of-the-Ultimaker-3 Currently, I'm removing lots of fine PLA threads from it using tweezers. Hope that helps 🙂 Thanks!
  4. Hi @Torgeir, that's a very promising lead! There actually was some PLA residue inside (mostly threads); I removed what I saw but didn't really think about it too much, so there might be enough left to block it. Do you have some hints how to clean that fan best? Thanks Stefan
  5. SOLVED! Symptoms: Printing starts nicely, but after a short time the printhead is blocked and no material rendered any more. Issue: Axial fan (the front fan) was blocked by debris, thus the feed in the printhead would overheat and the material would get to soft. Analysis: Start your Ultimaker, go to System -> Printheads -> Temperature and set the temperature to roughly 50°. Verify whether the front fan is activated. If not, this is your problem. Solution: Cleaning out the axial fan using tweezers; to do so, you might have to dismantle the printhead. Resources: *
  6. Taking care of proper glueing and especially re-levelling such that the first layer was squished more did the trick Thank you very much! (model is not from myself, as I only just started - it's from http://www.printablescenery.com/
  7. Hi, thanks for the exhaustive answer! I guess I'll try to glue it to the plate like never before (some glue was applied, but seems like I need more power). My bed is at default setting, I think around 45°, so I'll increase that as well. I already added a brim in cura, as you can see in the picture it's twisted up behind the central pillar - that is due to the pillar ripping of from the plate, it was smooth until it was torn away. Thanks for the fast answer, I'll try it during the weekend! Stefan
  8. Hello, I have a new out-of-the-box UM2+, so no HBK upgrade performed. When I print something small, it runs like a charm. Now I tried the first taller prints, and after ca. 2-4 cm of height, the print head touches the print. This happened with pillar-like structures, who were ripped from the bed. Obviously, that ruined the print, and it also was reproducible. Is there any way to change the movement of the bed? As I understand, the layer height setting will affect both the amount of material used and the movement on the z-axis, therefore not solving the issue. Thanks, Stefan
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