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Found the problem, as for my VFD pwmgen output has to be inverted (setp hm2_7i95.0.pwmgen.00.out0.invert_output true), after that scale started to work in right direction.

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I still don't follow it I am disappointed in my self to say.

But, have blindly entered:- (Pasted out of the hal file)

loadrt not count=2
addf not.0 servo-thread
addf not.1 servo-thread
net my-input-signal-1 <= hm2_7i92.0.encoder.03.input-index
net non-inverted-signal-1=not.0.in XXXXX
net inverted-signal-1 => not.0.out
net inverted-signal-1 => min-y
net my-input-signal-2 <= hm2_7i92.0.encoder.04.input-index
net non-inverted-signal-2=not.1.in
net inverted-signal-2 => not.1.out
net inverted-signal-2 => max-z

This errors at the line XXXXX with net command needs a pin

I'm working towards getting a servo on the knee/bed of this machine, but I'm not there yet.  I will have a glass scale on the knee axis soon, but adding the servo is a bit of a project that will take some time.  For now I just have servos on X and Y, and W and Z will be manual.

I have not read up on the extra joint functionality so I'm not familiar with how it works.  I'll give it a look!

FYI I did end up submitting this as a PR ... github.com/LinuxCNC/linuxcnc/pull/3324#issuecomment-2642569284

-Steve


 

NT4Boy wrote:

loadrt not count =2 (I'll just show one here)
add not.0 servo-thread
net my-input-signal-1 <= hm2_7i92.0.encoder.03.input-index
net inverted-signal-1 = not.0.in
net inverted-signal-1 => your-desired-component (which I guess is min-y)

Yeah, that is not OK, should be something like
loadrt not count =2 <<<<< if you need two inverted pins, needs also another addf
addf not.0 servo-thread
addf not.1 servo-thread
net my-input-signal-1 <= hm2_7i92.0.encoder.03.input-index
net non-inverted-signal-1 = not.0.in
net inverted-signal-1 => not.0.out
net inverted-signal-1 => to whatever signal it needs to go

net my-input-signal-2 <= source of the input for inverting
net non-inverted-signal-2 = not.1.in
net inverted-signal-2 => not.1.out
net inverted-signal-2 => to whatever signal it needs to go

Yes, it is the index pins that are inverted. Thanks.
net min-y <= hm2_7i92.0.encoder.03.input-index is a pin that needs inverting.
i tried with
net min-y <= hm2_7i92.0.encoder.03.input-index-not , but it errors
the other syntax my friendly AI chatbot suggests for this is:-

loadrt not count =2 (I'll just show one here)
add not.0 servo-thread
net my-input-signal-1 <= hm2_7i92.0.encoder.03.input-index
net inverted-signal-1 = not.0.in
net inverted-signal-1 => your-desired-component (which I guess is min-y)

I don't get what the connection is between inverted-signal-1 and my-input-signal-1
Or should all three lines read inverted-signal-1

Still trying to learn.