Hi,
I have an original Ultimaker, with a self-built heated bed (powered by mains, so no additional load on the main board). The belts are tight, but not too tight - I can move the head with two fingers, as long as the axes are oiled. Other than that the printer is unmodified.
Recently the printer started to have a problem with layers shifted on the X-axis, and now it's happening pretty much constantly. I got it on video at
- about a minute in, as it's doing the infill, you can see that the X-axis stops moving for a second or so, and then resumes. I've also seen it jump, maybe 50 millimeters or so, print a bit there, and then jump back approximately the same amount. The clicking in the video is much less noisy in person, and appears to be benign - the belts don't appear to be skipping steps or riding up the pulleys.I've tried swapping the X&Y stepper drivers, but the problem did not move to a different axis. I'm at a loss at this point, unable to print anything. Thanks in advance for any help.