RE: [CAD_CAM_EDM_DRO] Question Re: Work Offsets

IMHO G91 is not a good cure for your problem. G91 puts the program into
relative mode. Now if you say G0 X1 the machine will move 1 unit in the
postive direction. If you call the same code again it will move another
unit postive. So, every move is relative to the last position. It is
really handy when doing MDI stuff, but most people that I know generate
their programs as G90 absolute coordinates, not G91 relative
coordinates. It would be a work around for you if you can generate all
you code as relative.

Tim
[Denver, CO]
Sherline products at Deep Discount
Mach1 & DeskCNC with credit card ordering
www.KTMarketing.com/Sherline

> -----Original Message-----
>
> So a G91 call will use the offsets I set using G92? (I'm
> guessing from what Tim Goldstein wrote, and from some of the
> EMC changelogs, that this is what EMC is doing when I
> right-click on an axis and set it to zero.)
>
> I'm still puzzled as to why the behavior is different in MDI
> mode and AUTO mode. Paint me as being ignorant, but I'd been
> assuming they behaved exactly the same, regardless of which
> one was used to get the G-codes into the machine.
>
> Tom
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html