Simple Universal Roller Spool Holder

A simple roller spool holder, quick to print and not a lot of plastic.

I have used 2 of the following bearings (pack of 10) back to back on each leg/corner. > http://www.gearbest.com/3d-printer-parts/pp_540284.html and secured with 3x20mm bolt.

Other bearings may work, groved single bearings for example, but make sure they fit your spool edge. The above bearings form a wide enough trough to accommodate any spool I can think of.

I might modify in the future to provide better lateral sup