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So interesting in the top notes the is the bit about only supporting amd64 for apt install but further down there are the instructions about how to install for pi 4 and 5. So i wonder which is correct.

ARM64 Raspberry Pi 4 and 5 Installation Repository:
sudo apt install curl
echo 'deb [arch=arm64] repository.qtpyvcp.com/apt stable main' | sudo tee /etc/apt/sources.list.d/kcjengr.list
curl -sS repository.qtpyvcp.com/repo/kcjengr.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/kcjengr.gpg
gpg --keyserver keys.openpgp.org --recv-key 2DEC041F290DF85A

Just a stab in the dark, but does the TX0108E have capacitors wired to power lines and close to the chip?
A 10 microFarad electrolytic and a 0.1 micro ceramic should do.

Do you have the HT200 plasma?
It should have a divider, so try to find the service manual for it, Hypertherm had those always available on their website, but not anymore, now they want money for documents, but still not much, so at least they are not greedy.
Have you looked inside the HT200?
Get the THCAD5 if available, with added resistors it works with any divider or raw voltage.

Well I've tried going back to the beginning and starting again too many times to be clear on anything now. I was rather hoping to push it all to one side and implement a 'this worked for me' sequence from somebody. My last hang up was the Ethernet not linking to the Mesa card so I can't talk to all my carefully crafted hardware and the 'usual' Pi functions not being on the prepared image.
I have some documentation on the Mesa card and if I could just get that working I could scramble some code together to read my switches and drive my steppers and make manual milling much easier. Once I get the most basic functionality I can grow it
I have a nice box built with stepper drivers, PSUs, Mesa card and the Pi-5 with screen, touch and USB connectors and all the stepper hardware and the DRO stuff available (I was hoping to snoop the DRO sensors while keeping it running).
It is perhaps poetic irony for a time served software man to have a software problem but most sets of instructions I see tell me to use commands that even with sudo the Pi says don't exist and one that insists it only works on a Pi4, Others are too global like 'Install RT Kernel'
I am suspecting there is a magic trick or even just the 'right' phrase to put into google to find a working example that at least gets me close.
If the trick is just to buy a mini-pc and put Debian on that (I have Debian on a web server and a laptop), I already have a couple doing other jobs about the house, I can live with it.

Going by the docs you linked to the apt install is only for amd64.

Aciera wrote:

Aciera would you like to be a moderator?


Sure.

Thanks for the offer.

There you go!

JT

Hallo cmorley, großartig! Danke für dein Script, das werde ich heute installieren. Mal sehen ob ich das schaffe Ich gebe noch Feedback. Danke für Deine Mühe!
CU Arno

Hello zmrdko,
have you an example for me, how is to do?
Thank you so much in advance
Best regards
Reinhard

Good morning.
for some reason it seemed like it would be fun to set up Ethercat and LinuxCNC and ProbeBasic so here we go.  Downloaded the 2.9.3 image from (forum.linuxcnc.org/9-installing-linuxcnc...or-raspberry-pi-4b-5), Then went to follow the standard instructions for installing probe basic from the install site Probe Basic Install.

Followed the instructions for the Arm64 (kcjengr.github.io/probe_basic/stable_quick_start_apt.html) but get the following error message on trying to do the Apt update before installing

N: Skipping acquire of configured file 'main/binary-arm64/Packages' as repository 'repository.qtpyvcp.com/apt stable InRelease' doesn't support architecture 'arm64'

I have checked the kcjengr.list file at /etc/apt/sources.list.d and it lists the arch type as arm64

i have the same MPG and on linuxcnc 2.9.3 and I am experiencing same disconnects.
I support Mecanix opininon - the MPG should be hard wired.

So its same as the older version board, thank you!

Hello Community,
i ve the same problem with disconnects and freezes of the WHB04-6 and i think its not a matter of the Linuxcnc Version, its a matter of the source code of the WHB04.
I use Linuxcnc 2.8.4 and gmoccapy with a XHC-WHB04-6 and its working in manual mode very well, but if i move the Jogwhheel in the Mode MDI or in Auto will switch the WHB04 to manual mode.
The problem start if i use the mode Auto and a program is running and i move in this time the Jogwheel ... then i get a fault message " its impossible to switch from Auto to manual mode in a running program" after will freeze the WHB04 in.
I search in the HAL for a solution, but the switch function is programed ( so i suppose ) in the source code.
I think the fault chain start earlier, with the functions "mpg" , "con" and "stp"
With the function "mpg" (directly after start of gmoccapy) is working the Jogwheel at the feeding rate ..... after press on the Button "con" or "stp" is impossible to switch back to "mpg".
Have anybody a solution for this kind of problem?

Thank you so much in advance

Best regards
Reinhard

Aciera would you like to be a moderator?

Sure.

Thanks for the offer.

I have 2.9.3 with the 5.4.258 RTAI kernal and am getting an error when starting my mill program.

     insmod: ERROR: could not load module /usr/realtime-5.4.258-rtai-amd64/modules/rtai_hal.ko: no such file or directory 

I have a serious problem with our power company. 
The 60 amps connection to our house is not what they say. I have serious voltage drops between utilities transformer and our house and they will not fix it. Looks like common practice in our area. 

I can reliably cut at 35 amps. 
if I go higher depending how much power my neighbors are using The plasma cutter gets an undervoltage and cuts out. 

So the table happily cuts until the compressor starts. 
Then the plasma cuts out because it gets an undervoltage.  Qtplasmac pauses and gives an arc lost warning. 

If the torch is off during the probing and the compressor kicks in the program keeps running until the compressor cuts out because of undervoltage.

So I can not run plasma and compressor at the same time. 

So I was wandering If I add a relay an electric unloaded valve and a pressure sensor to the compressor. Would it be possible to control the compressor with Linuxcnc.

I was thinking about the following. When pressure drops to a certain level. Well above what the plasma needs the program pauses. Preferably at the end of a cut.
then the compressor starts. When the tank is full the program resumes. 

Is that possible?