You need these items:
- Best: 608ZZ full metal or full ceramic ball bearing. 608-2RS with plastic caps and plastic spacer may also work, but it could melt.
- M3 screw 12mm or longer
- M3 spring or normal washer
- M3 nut
- Best: 45mm x 55mm soldering sponge in wet state. You can also use these ones and cut it to the right size, while it is wet. Maybe these already has the right size.
- Masking Tape
Download
Download this 3D Model on: https://www.thingiverse.com/thing:2385609