Ultimate Spool Roller [21 cup dry box compatible]

*I made a version 2 of this thing for spools that may need a little more width. Here's the page for USRv2:*

https://www.thingiverse.com/thing:3341611

*Note if your spools fit, the tapered rollers on the original version can deliver lower friction.*

Tired of adjusting your roller to fit different spool widths? Tired of spools jumping off your roller in the middle of a print? Is your current roller too big to fit in your dry box?

Solve these problems and more, with the one size fits al