Re: G92

--- In CAD_CAM_EDM_DRO@y..., "Les Watts" <leswatts@a...> wrote:

> Thanks for the insights Ray.
>
> Obviously some form of programmable pesistent work offset is a
> pretty essential thing.
>
> I don't consider G92 being cancelled by program stops a bug at all.
>
> The bug is that when it does persist it is sometimes not indicated
> on the display. I can say for sure that M0 does not cancel it either
> internally or in the display- I am using M0 for tool changes
> and the offset is retained through the change.
>

Les,

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