Corner Filament spool mount

This is a filament spool holder I designed for my CoreXY 3D printer. The plan is to have 4 spools (one on each corner). I find that this design works well with the Core XY mechanics.
Spool holder is adjustable to fit whatever width your spool you like.

Spool fits atop 4mm X 13mm X 5mm bearings (624zz) mounted using 4mm x 40mm screws.

Rods are 0.25" in diameter. Can use smooth rod or stander 1/4" threaded rod cut to length. I cut mine to 15cm long.

3mm X 15mm screws are used to lock