I wanted to design my own spool holder, with parts I had laying around.

I tried to make it easy to assemble, without screws or glue.

The design should fit most spools out there.

I have prepared two versions, one for maximum 65mm wide spools, and one for maximum 90mm wide spools.
The 90mm version worked with all the coils I had lying around.
For larger or smaller spools, I uploaded the f3d files of the bridge and the rollers.
There you only have to change the extrusion to get the desired width.

To build this, you need:

Prints:

• 2x body or body_honeycomb
• 2x bridge
• 2x roller (Alternatively, M8 threaded rod also works or any other 8mm diameter axis)

Hardware:

• 4x 608-ZZ Ball bearing
• Optional: M8 threaded rod
• Optional: 8mm axis

Print settings:

• Support is only needed for the rollers(print them standing upright)
• 200 micron z resolution
• 2 or more walls
• 20% infill
• Material doesn't matter(I used PLA)