Amazon.com: OSOYOO 3D Printer Kit with RAMPS 1.4 Controller + Compatible Mega 2560 board + 5pcs A4988 Stepper Motor Driver with Heatsink + LCD 12864 Graphic Smart Display Controller with Adapter for
Wiring up a laser to Ramps 1.4 with Marlin 2.1.1 on MPCNC - Software / Firmware - V1 Engineering Forum
RAMPS1.4 Laser Upgrade from J Tech Photonics, Inc.