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 ...

This familiar footprint manages to contain everything you need for a three-axis machine. The purple boards slotted into the pairs of SIL headers are Pololu Stepper motor drivers. Going this route ...