A strange sound coming from X-axis - linear bearings?!?
 
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A strange sound coming from X-axis - linear bearings?!?  

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PrusaTester2020
(@prusatester2020)
Estimable Member
A strange sound coming from X-axis - linear bearings?!?

I start hearing a strange (clicking!?!) sound coming from my Prusa Mini X-axis. I think this was not heard when the 3D printer was new. It looks to me it’s coming from the linear bearing?!?

Would any of you advise me what to do? Should I stop immediately printing and order new linear bearings? Is there a guide for this change?

Here is the video:  https://www.udoma.org/tmp/PrusaMiniXAxisSound.MOV

 

This topic was modified 4 years ago 2 times by PrusaTester2020
Posted : 14/10/2020 8:46 pm
Stefan M
(@stefan-m)
New Member
RE: A strange sound coming from X-axis - linear bearings?!?

I had a much louder rattling coming from my Y-axis, and I replaced the linear bearings, and it helped. After I did it, it crossed my mind that I could have rotated them, as they were really worn on the top side, and the bottom was not.

In short: You could try rotating the bearings such that the worn side is not under load any more.

For the mods/Prusa people: Is there a possibility to report this anywhere? My printer is only 6 months old(I would guess around 100hrs of printing tops), and central parts wearing out is not nice.

Posted : 14/10/2020 9:56 pm
Gordon W
(@gordon-w)
Reputable Member
RE: A strange sound coming from X-axis - linear bearings?!?

@stefm

Talk to support via the web chat on the e-shop page, they will help you. This is generally a user to user support form with little involvement from Prusa, so it's not a particularly effect way of feeding information back to the company.

Posted : 15/10/2020 12:18 pm
Stefan M
(@stefan-m)
New Member
RE: A strange sound coming from X-axis - linear bearings?!?

@gordon-w

I'll do that, thanks!

Posted : 15/10/2020 12:22 pm
PrusaTester2020
(@prusatester2020)
Estimable Member
Topic starter answered:
RE: A strange sound coming from X-axis - linear bearings?!?

I contacted the Prusa support and they are sending me two linear bearings under warranty.

Meanwhile I think I managed to fix the issue by twisting the left part of the X axis until it become perpendicular to the heatbed. That action removed the mentioned sound.

Posted : 18/10/2020 2:47 pm
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