Spool Holder that clip in the spool with standard ball bearing

I wanted a spool holder that clip on the spool and use as less space as possible because I will put my spools on a threaded rod over the printer in my rack-mount, so I can put 5 spools in one bar!

Also this spool holder use a standard ball bearing, so it turn very smoothly.

The STL file work with a standard skateboard ball bearing (22mm x 7mm), inside spool diameter of 56.5mm and tickness of 6mm.

SCAD file is included so you can set your spool size, see instruction.

UPDATED