MK3s Z spindle ball bearing
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This is a little mod for the MK3s to add a 608 ball bearing per Z spindle at the top end.
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Model information
- Source
- Printables
- Category
- Prusa Parts & Upgrades
- License
- Creative Commons — Public Domain
This is a little mod for the MK3s to add a 608 ball bearing per Z spindle at the top end.
The Z motors need to be a few mm higher (additional length of the spindles at the top end to fit into the bearing) so there also new mounting parts for the Z motors. It may be necessary to turn the motors 90 degrees because of cables.
It was a little bit tricky but now there are no more crash areas with other parts of the printer.
Additional information: Don't force the spindle into the bearing. If the end of the rod, the spindle and the holes for the srews doesn't fit on their own (in all possible Z positions!) the bottom part of the motor isn't align properly. Maybe the parts are not accurate enough printed or you need some more time to align them.
Without the bearing the spindle should stay in center on it's own. It's only to fix against vibration and stuff, not to correct a misalignment.
Print instructions
PETG, at least 20% infill