Re: gcode comments

Thanks Ray,

Yeah, I get carried away when I hear the explanation or answer to
something I've ran across. The old stuff might as well be left out.

Alan KM6VV :>)

Ray wrote:

>
> Alan
>
> (/) doesn't really comment out a line.
>
> (comments out the stuff between)
>
> / skips a block if the operator wants to skip a bunch of blocks. This
> feature is a lot like some genetic code that you might want to try but be
> able to disable rather quickly. And it was intended for those days long
> gone when it was much harder to edit a part program than it is today. You
> could use (/) to write in stuff to test the program and then switch it out
> by turning on the ignore blocks that start with (/) switch.
>
> This is implemented in RS274NGC because it was a part of the K&T that the
> initial interpreter was written for. All we would need to do is use a
> software switch in tkemc and we could reinvent the old skip block feature.
>
> IMO Putting the (/) elsewhere in the line would trip me up 9 times outa
> 10. Same thing with (;), it is a separator in some programming languages.
> (Old dog new trick problem) I have a hard enough time remembering where I
> put my Car keys. Usually in the ignition for simplicity (If someone wants
> my car bad enough, they probably need it worse than I do.)
>
> I also have a real difficult time when Ballendo reminds me that EMC's
> g-code is a variant. Damn if I didn't grow up on AB and GE controls when
> they were the only folk building controls and most of the stuff in RS274NGC
> is common to both. Seems to me EMC's language is a minimallist and others
> with "frills" are the variants. Hope we all come to terms with this
> difference before the book or at least in a footnote to the relevant
> chapter.
>
> I still consider a home command to be a frill. You notice how many ways to
> get home that have recently been suggested here. I wrote my choice of home
> routines into a genedit script (under the genedit scripts menu) that simply
> writes
>
> g0 z0
> x0 y0
>
> or
>
> g0 x0 y0 z0
>
> or
>
> g53 and either of the above.
>
> In Conversational Programming you could have a whole stack of home buttons
> for all the possible ways, (Don't worry about the wood mamma, I'm commin
> home with a load).
>
> IMHO - Why muddle up relatively simple g-code language with all of the great
> ideas that we can think up. We can write a language any way we want.
> Just don't pretend that it's the "real" g-code. Call it RS274ALAN or
> RS274BNDO.
>
> rant off
> <grin> hope you are too.
> --
>
> Ray
>
> From: Alan Marconett KM6VV <KM6VV@...>
>
> Ballendo,
>
> So is the ';' not advisable? I want to implement the "stock size"
> also. I have also read (NIST ?) that '/' can be used to "comment out" a
> line. Is this in general acceptance? I like the '()' comments, easy to
> parse. Although I'm inclined to put in "//" or "/* ... */" comments!
> ;>)
>
> Alan KM6VV