Inspired by other similar designs here on Thingiverse.
The rollers are made from 7/8" Aluminum round stock drilled and tapped 5/16"nc on both ends.
Use small washers to keep the knobs from tightening against the bearing race.
Cut the 5/16" bolts such that they bottom out in the tapped holes leaving a small space for the roller to turn freely.
Category: 3D Printer PartsThe author marked this model as their own original creation. Imported from Thingiverse.