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Okay, thanks, I will try it out and keep you updated

I will post the full config when I am done

The second image shows seven tabs playing YouTube videos.

I will use the laptop solely and exclusively for the CNC. I will not run anything else at the same time.

Is my laptop suitable? It is a small CNC. I use a feed rate of 1,000 mm/min, and I will use the 5 motors/axes to machine a thin plastic plate (little effort). I will machine molds on 3 axes.

First picture is OK, the second is not, so:
forum.linuxcnc.org/18-computer/40285-bios-settings-pictures
Se what you can disable there, test, if the result is still bad, try this but try this at your own risk as it requires messing with kernel parameters and might leave you with a non bootable system, not terrible if you are still inn the testing phase as you can reinstall in about 5 to 15 minutes depending on the PC/USB/HDD/SDD/NVME speed.

Bumped into this today, goes in great detail on how to tweak and tune for good latency:
dantalion.nl/2024/09/29/linuxcnc-latency...arameter-tuning.html
Not my article.

Your picture here
forum.linuxcnc.org/42-deutsch/56803-glas...85-s?start=10#334968
shows several warnings about permissions, it is not just index, so if you are running as root user, switch over or reinstall as LinuxCNC will vigorously refuse to run properly as root, as will most of the Linux "user space" software.
Also, are you using a parallel port? Why does it say that in the error report?

Ok

When, you say  "unfortunately the result is the same" , it would be helpful if you
specified the actual results as there have been at least three separate issues discussed here.

What's going on with this site? It takes forever to load, or it's not even accessible. I've been trying to reply here for 35 minutes.

@tommylight
All other changes are executed, so why should it be any different with the index signal? Yes, it should be executed as ROOT user.

@PCW
 I also set the jumpers to TTL and tried it out, but unfortunately the result is the same.
Here are the HAL and INI:
 
 
 

Please upload the pictures here on the forum, not on 3'rd party websites.
Thank you.

Just to be sure, are you running as user ROOT ?

No, this is a USB card so it will not work with LinuxCNC, or will require a lot of work to make it work.
But you can get rid of it completely and use a simple BOB (or not use a BOB at all) with a parallel port and wire the drives and switches directly.
Or replace it with Mesa 7i96S.

Would require reverse engineering, ie which MCU pins are connected to which IO pins.
The MCU would need to be identified. Reprogrammed and maybe even a Linuxcnc driver written.
Connection via USB is not an option.
SPI maybe the only option for communication, so RPi family would be the easiest option, SPI is not a PC interface, generally speaking.

It it was myself I would weigh up the price of a windows machine, windows licence and a Mach3 licence (you want to go down the legal route right) and compare that to a Mesa board and a suitable PC. Or even a parallel port based system and Linuxcnc.
A lot could depend on how much your boss wants to spend and whether they are comfortable with a non windows system. Oh and quickly to deploy the machine to start making money.

Just some thinking points.

Do the 7I84Us have both FieldA and FieldB power supplied?

Does the 7I74 have 5V power?

Can you post your complete hal and ini file set here?
Then I can try an duplicate your issue


Also if you know you have differential outputs on the scales,
you should leave the 7I85S jumpered for differential inputs.

Typically TTL encoder signals will not work if the interface card is
jumpered for differential signals, but differential encoder signals
will work if the interface card is jumpered for TTL signal



 

Hello,

This is a long shot. At work we have purchased a used CNC mill. It cam without a computer. And since I already use LinuxCNC for my mill, I'm tempted to also use linuxCNC for this one. The previous owner used Mach3. And the driver board looks like a generic USB Mach3 board.

Are there any chance this board could work with LinuxCNC? 

 

I know similar questions have been asked before, but the threds are old. And there were some hints regarding hacks to make this work regardless of the difference in the architecture of the real time part of LinuxCNC and Mach3. 


Cheers!
Bernie