- print two times
- assemble the belt-side: screw, washer, printed part, fender washer, washer bearing, washer, fender washer, printed part, washer, nut
- thighten belt-side assembly with two sets M3x30 screws, washers and nuts or zip-ties
- mount on lower threaded rod on your Prusa
- tighten lower part with two sets M3x30 screws, washers and nuts
No more vibrating Y-axis belt.