TUSH with guided bearings

This is a remix of TUSH (The Universal Spool Holder) by filamentry: https://www.thingiverse.com/thing:2047554

I printed the original one and noticed that my spools were moving towards the holder walls, making friction against them and partially vanishing the job done by bearings.

I designed a cover for the bearings which will guide the spool to the center of the bearing itself without moving towards the walls.

This remix is a bit higher in size than the original one, that's because the