The Ultimate Spool Holder Base

Needed a platform to keep the spool holders from moving on a slick table top. I have 2 sizes of filament rolls. This fits either one. A little non skid tape on the bottom solid as a rock. I want to thank filamentry for posting the original project.

11/17/2017 Added a version 2 of the base it provides a larger area to position the third bearing bracket. You can use it for the wide reals (71mm) and the smallest (38mm) that is a sample roll I received with a printer.