Code reference
LightBurn G-Code Console Commands, Explained Simply
LightBurn's console is a direct line to your GRBL controller: $$ lists settings, $H homes, $X unlocks, $G shows active modes. Here is the working command set.
Lawrence Arya··4 min
Code reference
M3 vs M4 on a CNC Laser Cutter: Which Mode to Use
In GRBL laser mode, M3 holds constant power while M4 scales power with speed, killing corner burn. Here is when each wins and why laser mode must be on.
Lawrence Arya··4 min
Practice
GRBL Laser G-Code: Practice Exercises for Beginners
GRBL laser G-code is a small, friendly subset: G0/G1 for moves, M3/M4/M5 for the laser, and S for power. Here are simple exercises to learn it by doing.
Lawrence Arya··5 min