Hey! Looks like we had a similar idea. I also am working on the rotator right now and wanted to use electronics I already had.
I have the rotator firmware working on an UNO R3 using a CNC shield (A4988 drivers and steppers)
I also changed easycomm to use serial instead of rs485.
I just finished printing my 3D parts and collecting all the materials. I’ll be assembling soon
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