Roller with 623zz bearing support
thingiverse
Roller that includes hole for a 623ZZ bearing, my printer required a .310mm larger hole to get the bearing to fit tight. you may need to tweak the hole to get yours to fit. the roller is 14mm thinnest at its thinnest point and 19mm at its widest point Yet to be tested, but this should make the wheel much smoother You may need to use supports with a angle of 3, my trial prints broke off the build plate without support
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