Re: [CAD_CAM_EDM_DRO] RE: Why can't I re-run this program?

Alan Marconett KM6VV wrote:

> Hi Ray, Tim,
>
> I've been studying the recent posts on stopping, I.E. M02 & M30, and
> also reading CNCpro's, and FlashCut's doc's. I under stand that there
> are variations in Gcode!
>
> I found SUBROUTINE CALLS in Flashcut (M98 Pmysub, M30, Omysub ... M99),
> and in CNCpro (G22 P20, M30, $20 ... M2). But I can't seem to find a
> sub in "NIST274/NGC Interpreter Version 3". I do know that G98 and G99
> are used in NGC for "canned cycle return level" (G98 vs. M98, already
> made THAT mistake). Does NGC support subroutines? or "subPROGRAMS"?

EMC does not now have subroutines. This is a major drawback for those
writing code by hand. I think there has been a TCL hack that makes the
GUI trick the system into doing subroutines.

>
> I see M02 ending a part program, OR doing a RETURN from a subroutine
> (depending on which controller software you look at).
>
> I was hoping to find a common denominator (majority vote) for doing
> subroutines. ;>)
>
> A common method of doing variables would also be nice!

If it wasn't part of the RS-274D spec, then every control manufacturer
was left to figure out a syntax on his own.

Jon