Ender 3 Belted Z Split top brackets
thingiverse
I made these to keep the top frame as secure as possible - you mount the brackets without touching the top four extrusion screws. The bearing opening is set to 22.075mm to fit snugly on my printer. It might be different on your machine so I included f3d file for easy remixes. Model has a lip on the outside to secure the bearing a bit, it's also a bit beefier. You will need two of each (2xNewTop1 and 2xNewTop2). UPDATE 4th of Nov 2021: -Moved bearing holes 1mm up to fit current transmissions position (NewTop1V2 and NewTop2V2). Since I still use old design these are not tested, but should work just fine.
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