Controlling this is a single Arduino Nano connected to a pair of A4988 drivers, a MOSFET for driving the magnet, and two limit switches for homing.” Watch this video on YouTube .

This said, A4988 drivers are known to work well, if noisily, in 12V printers. The flexible and stealthy TMC2130 has 400 (bottom) and 500mΩ (top) (100mA 25°C supply=24V) mosfets, and runs hot – needing ...