DIY Arduino based LASER Engraving CNC machine - YouTube
Wiring Setup - Shield CNC Controller & Arduino UNO
Amazon.com: 20W Engraving Module, 450nm 5W Optical Power Engraving Module Kit for Arduino 3D Printer,CNC Milling Machine 3018 Pro/3018 Max,CNC Router, Engraving Tool for Wood and Metal DIY with Eye Protection