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That's it, I'm now able to generate steps up to 125KHz !
You were right, using the DMA version did the trick !
I'll check the posts talking about DMA.
Again, thank you royka

EDIT:
For those wondering, the 125KHz limitation comes from the step length and step space both set to 4us. F=1/T so F=1/8us=125KHz everything works out !
The limitation comes from my JMC Integrated Servo, they don't work is I lower the step length.
That's kind of weird because the datasheet claims they can go down to 2.5us...
I'll check the signal with an oscilloscope.

Yes that one was the default. I just switched to the one Phil provided. Was able to run the materials in QTPlasmac but I seem to have an issue in Height control or maybe it was the consumable guess ill check that real quick...
Ok those look good but I'm getting intermittent raised cuts probably a settings issue in my HC but I've seen some PP create issues there as well. Im using the MESA THCad2 so its more than likely I haven't dialed that in correctly yet.

Thank you guys, I connected before the choke coil, there are 3kV capacitors so the voltage can't be higher than that. I used HV resistors.

Now I'm stucked with the arc voltage.
I placed a 9V battery on the input with a potmeter to test it. I set and calibrrated everything, encoder.0.velocity net to arc-voltage-in, the value changes with the pot but the arc voltage on the GUI and arc-voltage-out signal does not change, stays zero. Tried different scale settings, no result.
How to get that voltage?

Seems like you’re still using the default post processor instead of the one Phill posted…

For the lowest latency, you might have better luck with RTAI than PREEMPT_RT, assuming the BIOS isn't buggy:

forum.linuxcnc.org/9-installing-linuxcnc...ng-rtai-debs-for-2-9

If you need help, let us know!

Thank you for your reply

Indeed, it's these buttons in particular that I was talking about.

I didn't know if there were others involved, as I haven't tested many of them.
If it's only these two that are hard-coded, I don't think it's a big deal.

royka wrote:

Besides patching you should still choose full realtime in the config. After entering "make menuconfig" => General setup => Preemption Model => Fully preemptible kernel

Here are the rt config settings that works best for the rk3588:
github.com/orangepi-xunlong/linux-orange...s/rockchip_rt.config
 

Thnks, I've done all that but didnt work. I chose fully preemptible kernel.
my problem is after compilation, and after installing the deb file of rt compiled kernel, the kernel doesn't switch to the rt one and still boot with the old kernel. and also I manually changed the boot.cmd file in the boot directory, after doing this the kernel doesnt boot up at all and just stuck in that stage.
by the way, my orange pi 4 lts has rk3399 not rk3588.

tommylight wrote:

Nope, not RT, should have RT in the name there.
Run latency-test or latency-histogram , just in case.
 

Yes, I know. I couldnt switch to the rt kernel yet.

Here's the one I use. It's a Travel Distance & Lube component. Rather than time based. 

That way you can leave the machine idle for a day and the oil jar won't empty itself in your coolant reservoir.

e.g. at every 3000mm travel in the Z, lube for 2 seconds. 

Must have (imho)  
 

Let me think about this a bit... the E Stop and Power button text is currently hard coded.

JT

Punkt 1 war es, hab das alles mit Windows kopiert, LCNC hängt nicht am Internet.

Jetzt funktioniert es und müsste noch mit dem Ausgangspin für die Zentralschmierung verknüpft werden?
Die Komponente muss auch von Hand gestartet werden, liesse sich das mit dem Start von LCNC automatisch starten?

Grüsse
Steffen

A lot of time went by, I tried several things and finally found a documentation that worked for me:
www.katjaas.nl/linux/touch.html

From this I was able to create a desktop launcher that launches a touchscreen calibration, stores the calibration data and applies it immediately.

I've shared the launcher file, otherwise, here's the command (which works in my case):

Besides patching you should still choose full realtime in the config. After entering "make menuconfig" => General setup => Preemption Model => Fully preemptible kernel

Here are the rt config settings that works best for the rk3588:
github.com/orangepi-xunlong/linux-orange...s/rockchip_rt.config

I suspect you will likely get more helpful help in the classicladder section, I don't see this as an issue specifically with riocore, particularly with the error indicating memory issues in the classicladder components, rather than the riocore driver. At the very least, there likely is more classicladder experts watching that section than here.

www.forum.linuxcnc.org/25-classicladder

The only thing I can think of is the order the gui loads in vs the classicladder user mode stuff matters. I've seen some people use -w and -W to make the loading wait until things are complete as well. I needed to do that for one of my custom (non-classicladder) programs, needed to have it wait for the hal stuff to be complete before continuing to load the hal file.

linuxcnc.org/docs/stable/html/ladder/cla..._non_realtime_module

The example configs in the linux cnc repo have been quite helpful for me personally, there might be some hints in there for your use case as well
github.com/LinuxCNC/linuxcnc/blob/master...dder/demo_sim_cl.hal

Ok this is the start of my gcode as output from sheetcam.

; date and time: Mon Nov 18 2024 13:16:07
; postprocessor: LinuxCNC PlasmaC.scpost rev: 0.4
;
;begin pre-amble
G20 (units: inches)
G40 (cutter compensation: off)
G90 (distance mode: absolute)
M52 P1 (adaptive feed: on)
M65 P2 (enable THC)
M65 P3 (enable torch)
M68 E3 Q0 (velocity 100%)
G64 P0.01 Q0.001 (tracking tolerances: 0.01")
#<holes> = 2
#<h_velocity> = 60
#<h_diameter> = 1
#<oclength> = 0
;end pre-amble
;
;begin material setup
T0 M6 (select plasma tool)
G43 H0 (apply tool offsets)
(o=0,kw=0.068, ph=0.15, pd=0.2, ch=0.06, fr=120, th=1, cv=99, pe=0, jh=0, jd=0)
F#<_hal[plasmac.cut-feed-rate]>
;end material setup
G0 X0.18162 Y4.32319
M3 $0 S1 (plasma start)
M67 E3 Q100