Advanced Search

latency-plot is really just a different way to query the same information, and it looks great too.
The problem being that all the tools see ~4us jitter max no matter what i do but linuxcnc itself fails instantly.

I dont think headless is any problem, the previous old c2d machine was run headless too.

Gemäss Schaltplan hat dein Regler differenzielle Encoderausgänge also mal kontrollieren ob dies auf der 7i76 auch so mit dem Jumper konfiguriert hast:
 

Weiter kann es auch sein, dass du den Encoderausgang im Regler selbst noch konfigurieren / aktivieren musst.

You can use latency-plot to monitor latency.
Headless, that might easily cause latency issues, i would never use that on a production machine as it adds several layers of potential issues.

ATC must have some sensors, be it index and pocket, or gray scale, or binary, or ....

the J1900 dosent have hyperthreading, nor dose the board have tpm, i disabled all the low power c states, onboard audio, the igpu (machine is headless).

If i could somehow repoduce the latency excursion in latency-test/ or the histogram that would be great, but i cant get it to happen.

Try:
OA+ A+
OA- A-
OB+ B+
OB- B-
Then open "show hal configuration" from "machine" menu, there on the right side choose "watch" and on the left side choose 7i92>encoder.0>encoder.0.velocity or encoder.0.raw-counts
Do this for all 6 encoders so you can see all at once and turn the spindle by hand.
Does any encoder count?

Did you disable hyperthreading, TPM, power saving, pci-e power management, turbo, etc in BIOS?

Thanks for your thorough explanation. Much appreciated! I will certainly give your build a try and I may decide to use it for the new machine that I am working on. I always love to try new things, pushing the boundaries of my comfort zone
As for Clear Linux, I have not seen any recent progress on their end to build a bundle for LinuxCNC. They got beyond the point where I got stuck, but it is still a work in progress. I reached out to them two weeks ago, but have not received a reply yet. I know they have a lot on their plate, so it may just be a resource and priority issue. Time will tell.....

actually i dont have any sensors except tool length sensor , i am using servo motors with absolute encoders

How many sensors does your ATC have?
What do they do?

Yeah got it.
I git cloned the source and as it's C and I've been reading C see since K&R was the hot book to have (like 50 years) it didn't take long.
Track back and discover it's in the NigMill.ini file
but   but  didn't I try that already?
Recheck. There was a sectionSo I just whipped off the # on the first and last line and retried it, got nothing.
Sad. Miserable.
However the dyslexic old coot that I am missed the real section name was SPINDLE_0and it works. I can increment and decrement in 1rpm steps.

Your Jog Speed shows Cero
May be that is the problem?

Norbert

hi.Tks for reply .no i dont know actual desired PWM. its not fixed speed