I printed off 2x spool holders from https://www.thingiverse.com/thing:2086877 and designed the large base to be 50mm center to center which works for my spools (AMZ3D & Hatchbox). you can use the single if you want for wider or narrower spools.
after placing the bearing between two holders just slot them right into place, they should fit snugly and secure
| Friction_less_Spool_holder.stl | 70.2KB | |
| Spool_Holder_holder-single.stl | 51.1KB | |
| Spool_Holder_holder.stl | 264.6KB |
