Ultimaker Feeder Upgrade, Upgrade :)

pinshape

Preventing filament movement sideways is a must for optimal print quality, and that's exactly what this grooved ring does - minimizes filament deformation. I designed it specifically for the new feeder upgrade from Ultimaker, replacing the delrin ring entirely. Use at your own risk, though - test it out first to ensure compatibility with your printer. To install, make sure the infill is 100%. The fit needs to be tight, so you might need to adjust this according to your printer's tolerances. I've thought about increasing the outer diameter, but that would require modifying the pressure lever altogether.