Re: G92-program zero

["Joel Jacobs" <jj-at-netexp.net>]

Hi Dave,
I may have to try xemc, I've been using Tkemc.  It never occurred to me to
try a different GUI.  What I've found though is that if I set G92 in MDI
mode and stay in MDI mode I can abort any commanded move without affecting
the G92 setting.  If I abort a running program the coordinate displays are
still correct but zero isn't zero any more - I can go to MDI and enter G1X0
and it will move and it will stop but not at zero - the x coordinate display
will be non zero.
   If I let the program end, as soon as it hits the M30 it looses the G92
setting and the coordinate displays shift - I can go to MDI and type G1X0
and it will go to zero and display zero but it's not the zero I set with
G92.
  Sometimes I want to run two different programs on the same part without
disturbing the setup or program zero and I can't do it.
  I didn't think anything should change a G92 setting except another G92 -
G92.1 - G92.2.

Joel

----- Original Message -----
From: "dave engvall" <dengvall-at-elltel.net>
To: "Multiple recipients of list" <emc-at-nist.gov>
Sent: Monday, June 04, 2001 1:08 AM
Subject: Re: G92-program zero


>
> Hi Joel,
> I've  done all sorts of things to shut down a program under xemc. Switch
modes
> i.e. F3 or F5 will halt the program.  Abort. etc. I use M2 to end and
being a
> non-expert it never occured to me to use M30.
> In fact, I'm not aware of ever doing anything that shifts what is set by
G92.
> Maybe I just don't do anything fancy.
> Hope this works for you.
>
> Dave
>
> Joel Jacobs wrote:
>
> > Could someone please explain to me how to stop a running program or even
> > re-run a program without trashing program zero?  I set program zero with
g92
> > before running the program.  If I abort the program or if the program
> > exicutes M30 (program end and rewind) my program zero gets trashed.
This is
> > really frustrating as I have to tear everything down and start over with
the
> > test indicator etc to find zero again.  Please help...
> >
> > Thanks
> > Joel
>
>