478: drawbot drivers

This week I’ve continued building the driving mechanism for the drawbot.

The gears will be attached to the wheels and driven by independent stepper motors to draw pictures with gcode commands.


I’ve made contact with the motors wirelessly using a bluetooth module so that the drawbot can receive commands from my computer within 300 feet. This is the hardware: three A4988’s, a RN-42 bluetooth module, Arduino, three nema 17’s (12V 0.4A) and a 12V battery (7aH).




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