Monoprice Mini Spool Holder

A one piece spool holder that centers the spool to the extruder better than any I have seen. I wrapped plumber's teflon tape around the arbor to reduce the friction even more, but it's not required. It mounts on the Monoprice spool holder. The arbor is at an angle to accommodate the slop in the Monoprice bracket. It should be level when a spool is loaded.