Add Schmidt coupling experiments. I don't like the number of moving parts, and the fact that I can't produce it smaller than ~60 mm diameter, due to the size of ball bearings.
Add Schmidt coupling experiments. I don't like the number of moving parts, and the fact that I can't produce it smaller than ~60 mm diameter, due to the size of ball bearings.

krasin/abc-cube,krasin/abc-cube,krasin/abc-cube,krasin/abc-cube,krasin/abc-cube