CFWe did a lot of testing different motors, drivers and other things in the last weeks and ended up here. The new concept is running four X40 steppers by two X12.017 drivers by one STM32. The PCB can be cut to just three motors, if necessary. It measures just 40x3cm. The "clocks" will have a diameter of 12cm seperated by 5mm.
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How did you get your hands on X40.879B? I can't seem to find any...
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