Grbl is an open-source, high-performance software for controlling the motion of CNC machines. It parses "G-code"—a standardized programming language—to tell your machine's motors exactly where to move, how fast to go, and which path to follow. 1. Motion Commands These are the "bread and butter" of CNC work.
Moves the tool in a straight line at a specified feed rate ( F ). Example: G01 X50 Y20 F500 grbl g code commands list pdf