For the Prusa Core One+, I made this spool holder because the original bayonet-style holder protrudes too far outside the frame, and I want to install plexiglass to enclose the filament compartment.Prusa spools with a width of 68 mm fit perfectly, as do spools from most other manufacturers. However, some Creality spools require a spacer to center them properly,so they do not move and scratch the plexiglass that encloses the filament compartment.

I was inspired by the drawing below, which I modified to suit my preferences. I used metal threaded inserts for increased mechanical strength, two 608ZZ bearings, and printed everything in PETG with a 0.25 mm layer height.