Notifications
Clear all

Y-Axis started sticking.  

  RSS
Frankincell
(@frankincell)
Estimable Member
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!

Posted : 21/03/2020 9:28 pm
battincld
(@battincld)
Active Member
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.  

Posted : 02/04/2020 12:57 am
battincld
(@battincld)
Active Member
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.

Posted : 03/04/2020 5:34 am
Share: