Re: [CAD_CAM_EDM_DRO] G code Examples

Jon,

Yeah, I just wanted clarification, the quoted NIST line made me thing it
might only be for setting a zero!

Alan KM6VV

Jon Elson wrote:

>
> Alan Marconett KM6VV wrote:
>
> > Jon,
> >
> > Lots of useful information! I am interested in:
> >
> > G92 - Programming of absolute zero point (from NIST)
> >
> > As I understand it, G92 "sets" the controller's coordinates to that
> > specified? And something is saved to a file, for the next time the
> > machine is run? I'm not clear on what gets remembered. MaxNC remembers
> > the last coordinates the machine was at (when restarted), is that part
> > of G92's function?
> >
> > I was looking for a "Gcode" instruction to set the current location for
> > MY program! Thanks!
>
> I don't really understand what you mean. G01 X2.345 moves the machine
> to an X coordinate of 2.345 units. If you want to set some position the machine
> is currently sitting at to x=2.345 inches, you enter G92 X2.345, and EMC
> now considers that position to be X=2.345". Is that what you mean?
> Yes, EMC also saves the offset between home and the position you set with
> a G92, so after homing, you will have the same coordinate system as before
> you shut it down. This is great when referencing off the fixed chuck jaw or
> a fixture left on the machine for several days running.
>
> Jon
>
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