So you’d like to play with a g-code file (the numerical control programming language used by cnc machines) but don’t have any sample g-code?
For starters, be sure to check out our Free G-Code Tutorial. It’s full of examples on a case-by-case basis for all the common g code commands used by your machine tool.
Want completed programs?
No worries, here’s a bunch of example gcode files you can try on your cnc machine. Note that each specific machine may have its own dialect for g-codes. Be sure to check the example program before you run it in earnest to make sure it’ll perform the right machining operations for your particular machine.
G-Code Examples for Milling Machines
G-Code Macro Examples
Examples for Specific G-Codes and M-Codes
Our handy g-code reference lists have links to specific examples for all of the g-codes and m-codes.
Examples for 3D Printers
One thing you won’t find here are gcode files for 3D printers. No print bed leveling, bed temperature, or other examples are available. That’s because there are so many other resources for tracking down these other file formats needed by your 3D printer so you can get a perfect print.
How about a Free G-Code Viewer? Check this out:
Our g code editor is way better than a text editor for working with any gcode file. Load up your file in G-Wizard Editor and it will explain what the g code commands do in plain English. Since g code file formats are just text files, it can load any common file format.
Create your own Examples with Conversational Programming
With Conversational Programming, it’s easy to create your own examples…
Conversational Programming is a way to create simple g-code programs with CADCAM software. You simply answer questions in a simple Wizard format and it will generate the g-code for the operation. Our G-Wizard Editor Software has a free built-in Conversational Programming Module you can use to generate all sorts of examples.
More G-Code Resources
- Beginner’s Step-By-Step Guide to Making CNC Parts
- Wikipedia G-Code Definition
- Our Free CNC Software List
Do You Have Some Cool G-Code?
We’re always on the lookout for cool g-code files to add to this page. If you have something you think is worthy, we’re interested. If we wind up adding it to this page for download, we’ll give you a free lifetime copy of our G-Wizard Editor.
Here’s the sort of thing we’re looking for:
- Quick fun projects someone could CNC in a weekend.
- Useful g-code utilities such as subprograms that perform certain tasks that others may want to include in their own g-code.
- G-Code that demonstrates some clever technique or a better experience others can learn from.
- 3D Printer G-Code from slicing software. I don’t yet have anything for a 3D Printer.
If you think you’ve got just the ticket, send me an email via firstname.lastname@example.org. Include your g-code, tell me what sort of control it runs on, what it is, and briefly say why you think it should be added to our g-code page. I’ll let you know quickly whether I’m going to add it and whether you get your free copy of G-Wizard Editor.
Frequently Asked Questions (FAQ)
G-code is a type of computer code that instructs CNC machines on how to perform their tasks.
Most commonly, you make the g-code files yourself using CAM software, a Slicer for 3D Printing, or Conversational CNC Wizards.
G-code files may be downloaded to your CNC Machine where they can be opened by your controller software. They can also be viewed by a CNC Simulator such as our G-Wizard Editor software.
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Recently updated on October 21st, 2023 at 09:15 am
Bob is responsible for the development and implementation of the popular G-Wizard CNC Software. Bob is also the founder of CNCCookbook, the largest CNC-related blog on the Internet.