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

From: Jon Elson <elson@...>
Subject: Re: 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!

>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.

Jon is correct that EMC's g-code - RS-274NGC - does not support subroutines.
He is also correct about the hacked code. I wrote a little Tcl/Tk code that
will take g-code files and treat them as subroutines within a master
program. It is not exactly easy to use but it's under the scripts menu if
you are using tkemc.

>> 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.

And even if it was a part of the RS-274 documents, there was no
required enforcement of the language. RS is an acro-whatever for
recommended standard. I doubt that our vote will carry much weight with
the big control making companies!

Perhaps we should see this an an economic opportunity and write
dictionaries and sell translators.

Ray