The original spool holders/rollers that come with the MMU2 do not have the horizontal clearance required to hold many of the larger filament spool sizes, like 2.5kg. So, I designed this simple holder in much the same style, but with the additional horizontal clearance you need to print with bigger spools.
Works with the original hardware that comes with the MMU2/S.
5/28/19 Update: Completely redesigned to better support bearings. Old design allowed bearings/axle to pop out of socket when rolling resistance was too high.
0.2mm resolution, any infill.
The author hasn't provided the model origin yet.