Mechaduino is a board that sits on a regular stepper motor and turns it into a servo ... to get the accuracy they’ve promised. he Arduino-sounding bit of the name comes from their full ...

That’s the idea behind [BetaChecker’s] two-axis stepper motor, which looks like it has ... a large number of L293 H-bridge chips and an Arduino Mega. A variety of sleds, each with neodymium ...