Filament Roller for Prusa MMU2

thingiverse

I designed this filament roller combining the features I liked from two things: [Peter Rasmussen's](https://www.thingiverse.com/Rasmussen/about) [Prusament Filament Holder](https://www.thingiverse.com/thing:3197940) and [Paul Meyer's](https://www.thingiverse.com/pmeyer/about) [Prusa Research MMU2 improved roller](https://www.thingiverse.com/thing:3113520). I reuse a couple of STL files from the second thing, while using the first thing as inspiration. As described in the second thing, this significantly reduces friction compared to the original rollers shipped with the Prusa MMU2. To make one roller, you need to print: * Two side pieces * Two connector pieces * Four bearing standoff pieces * Four endcap pieces * Four cap pieces In addition, you need: * Two 85mm pieces of Schedule 40 PVC with 1 inch diameter (buy at your local hardware store) * Four bearings (you can reuse these from the Prusa MMU2 rollers) * Two aluminum rods (you can reuse these from the Prusa MMU2 rollers) Optionally, you can print the label pieces if you want numbers on your rollers. First connect the two connectors on to one of the side pieces, and then the other side piece on the other side of the connectors. Insert the cap pieces on both sides of one PVC pipe, then insert the bearings. Then insert the aluminum rods and then bearing standoff pieces on either side, and the two cap pieces on either side at the end. Repeat with the other PVC pipe, and then place both in the grooves of the roller.