Mechaduino is a board that sits on a regular stepper motor and turns it into a servo with a closed loop control of 0.1degree ... they’ve promised. he Arduino-sounding bit of the name comes ...
In that case, it can be mesmerizing like this Arduino-driven kinetic sand table ... laser cutter loose on some more 3mm stock. A pair of stepper motors connected to a CNC shield do all of the ...