Motor mount. About one time in ten or twenty I feel like I machine something and it turns out like I planned. I had some 1-1/2" 1/4" wall aluminum tubing, cut off a chunk, had to square it up cause my bandsaw decided it should start out wedge shaped.
then I cut it in half, drilled and tapped for 4-40 screws. I'm not sure how this mount and drive arrangement is going to work out? I don't like how it is going to force me to raise the ring gear and everything else up higher than I planned. We will just have to see how it goes.
I thought about using the threaded mount holes in the end bell of the motor, but I didn't like that due to tight tolerance where if I mis drilled a hole it was no way going to line up good.
No, make a small and large pulley for an O ring to drive the tumbler.
Jim