Thanks all. got it. already made many parts.
Odd though, sometimes at the end of my code. where the M99 is.
its not recognized by Mach3. the reason I say this. In a txt editor I can clearly see the M99..... Bu after loading in Mach3. I can scroll down to where the M99 should be.
and its not their. some crazy bug? this is not always the case. I have to fiddle with the file. sometimes adding a break or a return. then it works.