Hi all,
I have used only LinuxCNC in the past, so I'm quite new to Mach3.
I'm trying to learn as much as I can about Mach3, but still some things are obscure to me. Be patient.
My case:
as good habit, I always make a test of new g-code by doing a cut "in the air" before using it.
Below there is an example of what I usually do.
1. zero the Z position on the surface of the raw material;
2. raise the tool at the "safe height" of 10 mm above the material (just an example value);
3. set current position as the new Z=0 height;
4. run the g-code to test it by cutting some air.
After all is ok, I would like to restore the "real" Z=0 value, that is:
5. move the tool to current zero;
6. set Z=10 as new Z position;
7. run the g-code and cut the material.
How do I achieve step 6?
In LinuxCNC I simply manually enter the value "10" for the Z axis and press a confirmation button. After that the current WCS (for example G54) is modified accordingly.