Y-Axis started sticking.
Just posting this in case it helps anyone else who has recently received their Mini.
I've had my Prusa Mini for about a month and a half now.
I had my first issue this morning after almost 6 weeks of constant use.
I'd tell you how many hours of print time I had, but I can't find it anywhere.
The Y-Axis started sticking. There was a squeaking sound and then a slight grinding sound.
After an auto-home failed, I turned the printer off, disconnected the power removed the magnetic bed, removed the heater bed, and then the 6 locking nuts from the Y-Axis carriage.
Once I had the bed removed I found that the single bearing on the right was grinding badly.
I applied lubrication, and rotated the bearing while sliding along that rail and after a few passes it smoothed out and all the grinding sounds went away. I applied a bit more lubricant to both rails and double-checked each bearing. With everything moving smoothly, I re-assembled the printer and it started printing again just fine.
All your filament are belong to us!
RE: Y-Axis started sticking.
I've had my MK3S since mid Feb and have been printing non stop. This past weekend I had a shifted layer and stopped the print. I re-ran the xzy calibration and the bed seems to stick. It's also real tight moving forward/back with the power off. Much tighter that my second MK3S. I bought them both assembled and slowly learning the hw troubleshooting side. Aside from the grinding sound, I'm having the same trouble. Going up to try lube now.
RE: Y-Axis started sticking.
The lube fixed it. I wouldn't have thought that the bed would freeze up that badly but the lube fixed all my problems. Thank for your post.