Those annoying empty squares! The empty squares on the MMU3 idler and pulley model often fail to bridge cleanly and ruin your print. They have been filled in with separate objects so no bridging is required and the color can be changed to accent the model. The numbers on the pulley body have also been filled in with separate objects.
Import each part into slicer as a single object with multiple parts. The actual bodies are the same as the original. Prusa recommends PETG with 20% grid infill.
The author remixed this model.
The empty squares on the MMU3 idler and pulley model often fail to bridge cleanly. They have been filled in with separate objects so no bridging is required and the color can be changed to accent the model. The numbers on the pulley body have also been filled in with separate objects.