Z lead screw bearing top bracket
thingiverse
A Z lead screw bearing bracket for the top, that allows the bearing (F688ZZ Flange Deep Groove Ball Bearing 8 x 16 x 5mm) to move to horizontally in and out from the 2040 profile, since not all printers seem to have the same distance here. The Z lead screw will be fixed except in this direction but will not vibrate. You can make tolerances a bit more tight, to prevent it from moving freely. If you have upgraded to dual Z lead screws you should sync them with a timing belt and use this bracket instead: https://www.thingiverse.com/thing:2818257
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