Simple Spool Roller for 55mm Spools

This spool holder is meant to be a very simple and straight forward design. I only use ColorFabb, so all of my spools are of the 55mm variety. I've used and printed a variety of spool holders and have tried to incorporate what i want and actually need. The rounded inner edges keep the spool from catching on the sides, the bearings provide the smoothest feed you can possibly get, and its small footprint and design provides a strong but low filament expense when printing.