Sorry for the delay in my response. Thank you both for your helpful replies. Wolfi, I would love an SD card image to experiment with-- are you speaking of an SD image suitable for Raspberry Pi 3 Hardware? I need to order the appropriate stepper and the phidgets controller board.. A recommendation for a good stepper motor choice would be helpful as well as any sourcing recommendation for a planetary gear. I would just love to be pointed in the right direction sourcing wise. I am stuck with a 180 tooth gear RA only drive for now but i am looking for additional Worm drives to play with. Blueshawk thanks for the Gear ratio info and I'll peek at your solution as well.

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