External spool holder. Can fit spools with internal diameter more than 50mm. Require 8x22x7mm bearings, but it works without.
Spool specs requirements:
Internal diameter > 50mm
External diameter < 300mm
Width < 107mm
Axis require simple assembly, just press it in spool's axis bridge hole at the bottom side (rel printing position)
Printing settings:
0.2mm layers
4 walls
4 layers top\bottom
Infill 30% cubic
Brim - preferably for axis parts. I printed with 5mm outer
The author marked this model as their own original creation.