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Z axis bearings getting loose, is this normal?

CptanPanic

Z axis bearings getting loose, is this normal?
January 28, 2015 10:48AM

Registered: 10 years ago
Posts: 55

I have a standard i3 prusa, where the bearings on the smooth rod along the z axis are just held in by friction. This is the x-end idler. I am not sure when it started, but there is some play now in there whereas the bearing can rock a bit. Looks like parts are made of PLA, so is this normal to open up over time, would ABS be better? Should I modify to add a zip-tie?
Thanks,
CP

Similar to https://github.com/eMotion-Tech/Prusai3_EINSTEIN_Reworked/blob/master/Pieces%20en%20STL/X-END-IDLER/X-END-IDLER.stl

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Plasteroid

Re: Z axis bearings getting loose, is this normal?
January 29, 2015 05:21PM

Registered: 9 years ago
Posts: 125

I have mostly same kind of part. Perhaps it melted or cracked a little . Print ABS ones.

Prusa i3, Ramps 1.4. Catnozzle 0.4mm
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