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Motorized Marble Machine

by adafruit Sep 5, 2018
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What is the group of 3 holes in the base for? I've read the tutorial and watched the video, but I don't see those being used anywhere. Buttons for control that were added or something?

Thanks for sharing. The two pieces that accompany the screw seem to be missing from the print? They look to be the parts that hold the screw in place and keep it centered.

Thanks! You can grab the two two top parts from the original design (STLs named "lock cap" and "turn cap").