Cnc G Code List Download Pdf [top] May 2026

Mastering CNC programming starts with understanding the "language" that tells your machine exactly where to move, how fast to go, and when to engage its tools. This core language is (preparatory codes) and M-code (miscellaneous codes).

Before moving, the machine needs to know the "rules" of the workspace. Get to Know Your CNC: How to Read G-Code - Make Magazine

G-codes are "preparatory" commands. They set the machine's state or define the geometry of a move. While hundreds of codes exist, most CNC operators use a primary "set" for 90% of their work. cnc g code list download pdf

Commands the machine to cut a clockwise arc.

Commands a counter-clockwise arc. 2. Machine State & Setup Codes Get to Know Your CNC: How to Read

Moves the tool at the machine’s maximum travel speed to a coordinate. It is for non-cutting positioning only.

These codes tell the machine how to move from Point A to Point B. Commands the machine to cut a clockwise arc

The "workhorse" code for straight-line cutting at a specific feed rate (

For a quick reference you can keep on your shop floor, you can view and download various standard lists through these resources: Centroid CNC G and M Code List (PDF) Siemens Sinumerik G/M Code Reference (PDF) Haas Automation Mill G-Code List