Gear knob for Prusa. Two colors with no MMU. I printed a bunch to fine tune the design and test color combos. The teeth make it very easy to rotate the dial with 1 finger and the center has a nice bowl feel. The fit is a little tight with some mfg's PLA but overall fits very nice and secure. Be sure to push it all the way on.
I recommend using the G-Code. I've tuned the slice and it's very reliable, with zero post-processing. No raft or supports. It uses variable layer height to achieve a nice finish but still prints in under 30 minutes. One color change with 7 minutes to go. I always purge 2X. It's a great "Testy" to try all your color combinations.
The author remixed this model.