Re: [CAD_CAM_EDM_DRO] Question Re: Work Offsets

On Thu, 12 Jun 2003, Fred Smith wrote:

> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "inetd_conf" <benedict@h...>
> wrote:
> >
> > In MDI mode, if I typed "G0X0Y0Z0", it would go to (0,0,0) in the
> > relative coordinate frame. If I ran the program, it would attempt
> > to go to (0,0,0) in the absolute machine coordinate frame (the Z
> > value of which was well inside the workpiece).
> >
>
> Z=0 is UP on a vertical mill (away from the work). Any Z movement
> from home position is negative to the machine coordinates.

Right. But the initial move was to go to (0,0,0), then to raise the quill
1" off the workpiece. Instead what was happening was it was plunging
straight into the work while moving to what it thought was (0,0,0), even
though I'd set (0,0,0) to be the current position. It's like it totally
ignored the offsets I'd given it, and tried to drive the tool down to the
mill table (the absolute coordinate's z=0 position)

Tom

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