Guides
How to Loop a G-Code Program With M99: Three Honest Patterns
M99 loops programs three ways: at a main program's end for continuous runs, with M98 L-counts for repeats, and with macro counters for controlled cycles.
Lawrence Arya··5 min
Code reference
M98 and M99: Subprogram Call and Return, With an Example
M98 calls a subprogram and M99 returns from it, letting you reuse a block of code. Here is how the pair works on Fanuc-style controls, with an example.
Lawrence Arya··5 min