Has anybody every heard of this type of gear transmission:
It uses a wobbling ring with pins on it and what appears to be cycloidal teeth on the gears. Does anybody have any efficiency calculations or even guesses? It seems like a neat way to get a large reduction in a thin space.
Harmonic drives, to my understanding, rely on mechanical warping to function properly, and seem very tricky to design. This relies on completely different mechanisms to work and seems far easier to design and manufacture. I would not be confident making a harmonic drive, but I could see myself making this on a 2-axis CNC, manual mill, and lathe.
For FRC use I balk at using 3D printing both due to the efficiency loss as well as low strength. I’ve seen that channel and I definitely has interesting stuff on it.
Calculating the tooth profile should just be plugging in an equation, and I can always just ask the owner of the channel for them.
I was thinking of cycloidal gearboxes, but this has the advantage of not being eccentric, and thus you only need one wobble plate to counterbalance itself.