Filament Holder with Single Bearing Spool Modification

Filament holder for the prusa mk2 or mk3. This is a modification of a previous design that used two bearings in each spool. This modification only uses one 688 bearing in each spool so it only need 4 bearings total for each holder. I further modified this spool holder by taking the grease out of the bearings and putting thin machine oil instead. This makes the spool holder mover very easily and smoothly Previous design video https://youtu.be/v9blrlhuXA0 LInk to design on thingaverse link to files on thingaverse: https://www.thingiverse.com/thing:2910170