Hey Steve,
this is a frequently asked question. The answer is: You choose the right post processor in your CAD/CAM Software and then you export the toolpath. What the exact menu item is that you got to click to export it depends on which CAD/CAM Software you use. You can find this out if you read the fine manual of your CAD/CAM software (often nowadays there exist helpful tutorial videos on the CAD/CAM’s manufacturer’s home page).
Did you already choose a CAD/CAM software? You did not tell which one you use, or want to use.
- FAQ: What CAD/CAM software can be used to make gcode files for the Onefinity CNC
- FAQ: What is a Post Processor, What does it do, And why do I need one specificly for my Onefinity
For example, with Vectric, a popular CAD/CAM software, you can get a free unlimited time trial version with a few restrictions. This allows to get to know the software before you buy an unrestricted version, which is also possible thanks to the rich video documentation. Generally I would start early and go through the following very helpful information:
As @MindOfMcClure already mentioned, you can also write G-code without a CAD/CAM program. Before the advent of CAD/CAM software, this was the usual way to use a CNC machine.
You need no special program to write plain G-code. As G-code consists of plain text, any text editor program will do. After having written your G-code as plain text, save the file with a ‘.ngc’ file ending which will allow it to be recognised as g-code file by the Onefinity CNC Controller when loading the file. More information here.