USSR - the Ultimate Simple Spool Roller.

thingiverse

I love the TUSH, but it's a bit finicky and requires care placing spools on it. I'm lazy too, so I created this tabletop spool holder that lets you just drop your spools and go. This needs four 608 bearings and nothing else. Print a base and two rollers, slide the bearings into the rollers, and place the rollers into the base. Don't print the base out of a brittle plastic; it needs to flex a little bit to get the rollers in. Most plastics should work fine. Use supports on the base - there will be just four tiny support posts to hold the bearing holders. It took about four hours to print on my i3 plus with a 0.6mm nozzle.