On Thursday 01 October 2015 19:56:42 Gene Heskett wrote:

> On Thursday 01 October 2015 19:38:22 John Thornton wrote:
> > If your setting a G92 offset in the program from an arbitrary
> > position the back plot will not be where you run.
> >
> > JT
>
> Let me check, that might still be in the code, in the form of a G92.1
> IIRC.  Theres a G90, a G91.1 and a G92.1 in the code preamble, but I
> don't believe there's a plain G92 in it.
>
> The idea at the time I put those in was to assure that every
> co-ordinate system was zeroed to G54, so the tickling I do to G55
> isn't cumulative. But this code, while purporting to work, sorta,
> isn't "purty" enough to publish, it has leftover vars all over its
> play-pen.
>
> I put the code, and a screenshot up on my web page below the sig, look
> for the line that has GO704 in it, and click on "here" at the end of
> that line.
>
> > On 10/1/2015 5:34 PM, Gene Heskett wrote:
> > > Greetings all;
> > >
> > > This g-code to carve the joints in a blanket chest, got somewhat
> > > refactored over the last couple of months as I tried to move the
> > > math heavy stuff out of the subroutines in favor of doing  some of
> > > it in the initilazation phase, setting vars that the subroutines
> > > can use. And I am not done just yet, there are still some math ops
> > >
> > > But in the process, the backplot has gotten a little funkity,
> > > drawing its red lines during the program's execution at about the
> > > equ of the tool #1 radius, (0.125") down and left of the original
> > > wireframe drawing.
> > >
Actually, I did some rudimentary measuring using the onscreeen dro. the x 
offset between backplot and actual red execution trace is -0.0625".

The y offset is 2x that, -0.125

I took all the G9x.x out of the preamble in my code, and restarted the 
sim version just now to reset it to a known state, reloaded the code and 
ran it again, with exactly the same offset results.

At least its consistent. :(

Thanks John.  Any more ideas?

> > > Is there a known programming no-no I need to expunge?
> > >
> > > Thanks all;
> > >
> > > Cheers, Gene
> > >
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> Cheers, Gene Heskett


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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