which is based on an earlier Arduino shield, has headers for end stop switches, and the software that runs on the cnc’s ATmega has a firmware switch that can be thrown to enable them, and another to ...

[Tim] stuck with using the tried-and-tested controller solution consisting of a Raspberry Pi, an Arduino Uno and a grbl shield ... a CNC conversion package, mounting the motors and limit switches ...

The project uses an Arduino Uno R3, Arduino Mega 2560, Arduino CNC Shield V3 GRBL, Stepper Motor Driver A4988 and Arduino L293D Motor Shield together with a couple of wooden wine boxes to create a ...