RE: [CAD_CAM_EDM_DRO] G92

<rant>
This is EXACTLY how I want EMC to act. Like Jon E. I am running the old
RH 5.2 version of EMC because it behaves as I want it to and it handles
G92 just like Fred's commercial control does. Once you set a G92 it
stays there. I never tried canceling it with a G99, but I can attest to
the persistence through all other codes. Reliable and predicable.

Ray, I know that Tom Kramer says it is suppose to work the way it does,
but it is a mess. I would guess that I am pretty safe to say that Tom
has never had hundreds of pounds of iron acceleration with thousands of
pound of force in a direction that only he would seem to be able to
figure out. I would propose that if the user community says it works
wrong it doesn't matter how much documentation the programmer produces
to show they are right, it is still not right. The old interpreter
handles G92 in the way I understand users of commercial controllers
expected it to. That is far from the case in the new rendition.
</rant>

Tim
[Denver, CO]

> On my AB8400, the G92 is only cancelled by a G99. G92 and Fixture
> offsets (G45 O01 which is replaced by the G54 commands) are in effect
> until cancelled. Program stop does not cancel them. I don't
> remember if that command is in the EMC, but if it is, try to issue it
> just before the M02 and see if that helps to clear out the coordinate
> shift.
>
> I include a G99 before each toolchange and at the beginning of all
> the programs for this controller, "just in case". ;-)
>
> Best Regards,
>
> Fred Smith
> IMService