Probe for corner

If you trip the probe input when your not in a G38.x move it is an error.

JT

As John said a G1 move should trigger an error with Linuxcnc, however if you normally work in G90 absolute distance mode and the routine is working in G91incremental distance mode you may be left in the G91 mode on error.
G38.5 is to retract the probe from the contact to non contact, if the probe sticks on or bounces back on the move should fail.
IIRC G38.3 will not work if you issue it when the probe is already in contact.
The idea of the two step approach is again for safety, let you know where the problem is and return you to the mode you would normally work in.

Rick G

I mentioned earlier about an edit to add the offset for the probe. Here it is. I added so,me comments where I think they belong. I'm a complete rookie at Linux, so if there are any suggestions about how I went about this I'd love to hear them. Thanks again for making this widget it's really great!
Hahn Rossman
www.alkifoundry.com

That looks good. Nice addition. I do not use tool length compensation with my R8 holders so the Z was not developed.
Glad to hear it is of use to you.
I do plan on cleaning up the original and making it easier to read.

Rick G

Thanks heaps for this code Rick and hr!

I've just spent the evening tweaking it and getting to behave a bit better for the Z probing (just run in simulation in a VM so far, very handy to be able to do that).

I've written a bit of a guide on my site: 7xcnc.com/software/probing/probe-corner-ngcgui/
The full code is on that page.

Glad to hear it was of some help to you.

Rick G