Hatchbox Spool Roller

I frequently change filaments so I wanted something quick and easy. I designed this spool roller for all of my Hatchbox filaments. It is very smooth and does a nice job of limiting friction. Originally, I printed the bearing sleeves in PLA, but after I got better with flexible filaments decided to do the bearing sleeves in a NinjaTek Cheetah filament and it works even better.

Included are the base by itself, 4 bearings by themselves, 1 bearing by itself, and the entire assembly (with the e