If you’re building a CNC or laser, there’s an excellent chance you’ll be using Grbl to get moving. It’s also a pretty safe bet you’d end up running it on some variation of the Arduino ...

We really like this retro-redo, though, and fully support his stated desire to convert more old hardware to Grbl_ESP32. Posted in cnc hacks Tagged Atari 1020, cnc, ESP32, grbl, ...

The machine uses a ‘grbl’ controller, which has an Arduino-based circuit that includes multiple outputs, including a powerful 24V pwm signal that is generally used to drive a 60-80W spindle motor..