On Sun, 25 Apr 2021 at 12:27, andrew beck <andrewbeck0...@gmail.com> wrote:

> I would like to be able to change hal values depending on what a if
> statement says.  Basically I want to deactivate my Linuxcnc hal controlled
> spindle ramp of I am rigid tapping.  Either by doing a setp on the rate of
> change or swapping two hal signals.  Is that possible?

Yes, you could either use a User M-code to setp the hal value (see the
M100-M199 docs for an example)

Or you could use a mux2 component to switch the value. That would make
sense if there was a way to tell (in HAL) that the system was
rigid-tapping, but that doesn't seem to be a specific value on
motion.motion-type, so might not be possible.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


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