Upgrading of a board with the Marlin firmware for laser engraving using an RAMPS 1.4 board as an example. - EnduranceLasers
The Electrical Wiring Diagrams for RAMPS 1.4 (Reference from reprap.org) | Download Scientific Diagram
GitHub - perivar/grblForRAMPS: RAMPS 1.4 fork of Grbl. An open source, embedded, high performance g-code-parser and CNC milling controller written in optimized C that will run on a straight Arduino
Marlin firmware as laser cutter
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.