[Solved] Really weird squeaky noises while printing
i received my Prusa mk3 at christmas and it was working flawlessly. Today i just started another print and there was the Noise (see video) when printing. Does anyone know where it comes from and how i could fix it? I think it was after the Update to the latest firmware 3.9.3-3556 but i am not sure, so don't pin me on this.
To be honest, it doesn't sound healthy at all.
[video width="1920" height="1080" mp4="https://forum.prusaprinters.org/wp-content/uploads/2021/02/20210204_102819.mp4"][/video]
Thanks a lot =)
Have you checked there is no dirt or filament strings near the fans?
yes, it is indeed clean. I have stopped the Print now and could narrow down the issue to the y-axis. The issue unfortunately still persists after lubing the rod
Ok, i have loosened the steppermotor from the carriage, moving the plate around slowly doesn't make any noise, moving the stepper motor doesn't cause any noise either. Attaching both back together -> Noise
Edit: moving the stepper motor by itself without load also doesn't cause any noise
It sounds to me the culprit might be the extruder motor but I have not seen this before (so I might be totally wrong). Could you try to: 1) with the machine powered off, disconnect the extruder motor cable from the board, and 2) attempt to start a print and see if the noise is gone (of course nothing will be printed without the extruder).
thanks for your suggestions, i was suspecting the extruder as well, turns out, it was the y-axis idler. I might have been fastening the screw tiny bit to much, which caused the plastic to get in contact with the bearing and caused this noise. I have loosened the screw and lubricated the sides of the bearing just to be save. It seems to solve the issue.
I will set this topic as solved when the next print is going well =)
@pecadis I am glad to know you figured it out and fixed it. 👍
Yes, it was the y-axis idler =)
Good to know. I have a printer that is squeeking similarly. I thought it was old bearing. I repalced them last week to no avail. I will check the Y idler screw. Thanks.
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actually, it wasn't directly the screw in my case but instead the sides of the idler pressing against the bearing, hence the screw was just too tight.
Good luck with it =)