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  1. I assumed that I needed a prime tower when switching between printcores. I am using a UM3E printer.
  2. I am making a tall print using pla and breakaway white. The prime tower keeps falling over, even though I made the diameter wider from 20mm to 50mm. What do other people do to combat this problem? I am currently pausing the print and attempting to support the prime tower by using painters tape.
  3. I assume changing the settings in the UM3 for the new extruders is straightforward. Will I have to change those setting every time there is a new software upgrade in my UM3?
  4. I am also tempted to get a CC core. Maybe a Black Friday deal would get me to buy one.
  5. It looks like Bondtech has two models of extruders for the Ultimakers. What are the differences between the QR and the DDG ones? I assume QR stands for quick release.
  6. That really helps. Thank you. I just wanted some opinions. I have experienced some extruder/feeder slipping, so Bondtech might be a good choice.
  7. Is there a benefit to printing more abrasive materials than the standard materials? What extruders do people like? I see lots of discussions on Bondtech. I am a bit concerned that printing will be more complicated with the necessary speed changes in my printer. Is there any benefit to using a CC ruby printcore?
  8. The fan is working, so the problem is probably the fan. Where can I mail order a new fan?
  9. How hard would it be to splice in new wires? Do you think shrink tubing on the wires might solve the problem?
  10. There is definately a problem with the middle fan. Automatic leveling works when I unplug the fan. From my search, I see it is called an axiel fan 2133. I am still confused why a working fan can mess up the leveling sensor. I assume it would be best to replace the fan. Unfortunately the fan seems to be discontinued. Any suggestions or comments?
  11. 14mm seemed too tight for the springs.
  12. Thank you. I will check that measurement later.
  13. I found that the wires going to the sensor for active leveling were broken. I resoldered them. Then I still had a problem with active leveling until I uncompressed all three springs on the build plate. After that, I did a manual leveling. Then I was able to do active leveling. Now printing seems to work again.
  14. The feeder is working when I load filament. I am not sure about the middle fan. Is that the fan on the printcore door? Since I can load filament, I don’t think there is a clog. I have the problem on both printcores. I tried my .4 and .8 in both positions.
  15. My printer is not printing at all. All of a sudden today the filament stopped coming out. I am able to load filament properly in either printcore 1 or 2, but nothing comes out during printing. I don’t even think the feeder is feeding filament during printing. Any ideas?
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