How to Program with Variables Using G-Code

Variables are not just limited to complex macro programs; we can use them with standard G-code programming as well.
In this video, Marc from @GCodeTutor edits a G-code roughing cycle and replaces dimensions with variables so that one program can make a family of parts.
Variables can take a little while to get used to, but using them in your programs can really help speed up G-code programming.
If we think of a variable as a box, a container that holds a value, then we can call up that box and use the value inside it. This opens up a lot of options and clever things we can do with math within our programs.