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UNITS = INCH # issue a G20 at load
DEFAULT_UNITS = INCH # same as G20

Remove the comments from those two lines.

Talking about having to drop this menu down and change every time. I thought i changed everything in the ini related to units (attached).
 

 

forum.linuxcnc.org/plasmac/40057-camera-for-touchoff
There was/is something for PlasmaC and/or QtPlasmaC, but i can not find it, might be in the manuals, but searching for it now i noticed some of PhillC videos have been removed from youtube.
It did skew adjustment also, when the plate was not placed parallel, etc.

Anyone have any experience with using machine vision with LinuxCNC?  Specifically I am looking into adding a camera to a CNC router for automating the touch off process for part location and size checking.  I want to be able to fixture a part (a frame) to the table then start a routine that would find the edges of the frame opening, make any needed adjustments to the part coordinates, and g-code (adjust a parameter or 2) and then mill the piece.

Does this sound like a reasonable task? Anyone already done something similar?

Did you finish your project, did you use the original encoder or did you change it?

i will try that tomorow
thanks

I don't think you will get much help without a description
of your Modbus hardware and software setup.