The build relies on a simple XY Cartesian design, using a pair of NEMA 17 stepper motors. It’s built in the typical CoreXY fashion, running GRBL firmware on an Arduino Uno. Where [TUENHIDIY ...

One nice feature is that he’s included a limit ... one servo motor is converted from 12 using an LM7805 voltage regulator. He’s also done a nice job packaging the Arduino, stepper motor ...

grbl is stepper motor controller firmware for three-axis cnc machines ... isolation circuit for folk to add to typical commercial grbl boards With grbl, both limit switches for any axis are wired to ...

And rather than placing one stepper motor on each ... 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.” ...