Re: [CAD_CAM_EDM_DRO] Axis Re-set ?

Hugh & Denise Currin wrote:

> Here is a simple question for those familiar with EMC. How can I re-set
> the axes to zero? I've looked through the Handbook and NIST pages and
> haven't found this. It looks like G10 might do this but it is not
> documented in enough detail (i.e. EMC wants additional parameters). Other
> than re-starting EMC how do I do this?
>
> I want to jog to a point and then set this as the orgin.

Yes, of course. The simplest command for this is G92. After moving the
machine to the desired point, you enter G92 X0 or something like that.
You can do multiple axes at the same time, like G92 X0 Y0.1
If you are using an edge finder, assuming a .2" diameter tip, you would
do a G92 X0.1 (or X-0.1) and it accomodates the radius of the edge
finder. Then, you can raise the edge finder, center it with your fingers,
and do a G01 X0 Y0 and see if it brings the corner of the part right
under the center of the edge finder. Then, you know that you have entered
the + or - coordinate offset correctly (my most common problem with the
edge finder).

If you are using xemc or TkEmc, hitting the right mouse button over the axis
in question pops up a dialog box that does the same thing.

The G10 is used to set up additional part coordinate systems. This is
generally
used if you have a fixture that holds several identical parts at known
locations. This way, you can set coordinates from the first part, and then
use the same program on the additional parts offset by the G10 offsets
to do the other parts in the fixture.

Jon