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I'm thinking of selling up, clearing the garage and start carving pipes..... .I don't even smoke.

Hallo,
der Ping mit 200ms Latenz scheint mir recht hoch. Hast du dir die Sachen die PCW im 2. post hier forum.linuxcnc.org/27-driver-boards/5284...nishing-read?start=0 vorschlägt schon alle erledigt?
Ich nehme an die Karte hängt am ethernet port und nicht an einem usb2ethernet adapter oder dergleichen?

You are welcomed, always.

How many 7c81 are in use?
for one only, delete the line containing 1
addf hm2_7c81.0.read
addf hm2_7c81.1.read
Pretty sure this should only be used if you have 2 of 7c81, 0 and 1 there are enumeration for 2 of 7c81 not the add on cards, they do have their own enumeration after the model number, example:
hm2_7c81.0.7i77.0.0.input-07
First 7c81 that has the first 7i77 attached, first is always 0 with Mesa and LinuxCNC enumeration.
Had a look at your hal, there is more editing required, so it might be easier to make a new config with a single 7c81.

pgf wrote:

... designing arbitrarily complex digital "circuits" in a text file.

That is a nice way to explain it, thank you.
-
-GRBL is simple and quite easy to setup and use, once you figure out the quirks.
-FluidNC is simple and easy to setup and use and runs on an ESP32, magnificent!
-Klipper is complicated in every way possible, but quite easy to setup after spending weeks of reading, it is very good at what it does, can be modified a lot, but the huge overhead (hundreds of required packages) makes it not very reliable (works for months without issues then suddenly goes on hiatus), with very little ability for troubleshooting
-Marlin is not easy to setup but luckily there are ready made configs/images, easy to use, runs even on 8Bit micros, works "stand alone", and frankly it is amazing how much functionality is crammed into it.
-LinuxCNC is very dependent on what you need from it, very easy when using parallel port, easy enough when using most Mesa cards, all thanks to the insane amount of work put in by members of this forum and developers, but can be complicated as much as you are willing to ask from it. I can go on for days...
-
To better understand the flexibility of LinuxCNC, just pick one of the projects started on this forum, like QtPyVCP Probe Basic (or Basic Probe, i always mix those), QtPlasmaC, QtDragon, PlasmaC, MonoKrom, etc. Some of them started just by someone asking here and inside a week there were actual working GUI's being developed, search for "Brender".
I have to stop...

Hi,
thanks for your fast reply.
if you read in the hal, there is written :
addf hm2_7c81.0.read
addf hm2_7c81.1.read
for both cards
.0 is the 7i77 and .1 is the 7i78
I interpreted the documentation that it should be done like this.
Any advice how it is configured correctly?

thank you very much tommylight

Verilog & VHDL are text files

And there were also (still there) PAL & GAL text files again.

Tho I might be a little special in the head, I didn't use a schematics when wiring the control box for my mill...I can kind visualise things in my......not to the level of Dr Hawking,most of physics confuses me.Quantum Mechanics just requires not trying to relate it reality as we experience in day to day life. Maybe if I did more than 3 and a bit years of high school and was less interested in playing Rugby.

Using POSIX realtime
That is correct.

HAL: ERROR: function 'hm2_7c81.1.read' not found
./intos.hal:16: addf failed


should be
hm2_7c81.0.read

Hi all,

I am designing a new machine and would like to use Ditron magnetic scales on X & Y. 

• The Y axis has dual motors, should I use a scale on each side or just one?
• Any recommendations of mesa boards to use here? 7i95T + 7i84U or 7i96 + 7i85
• Whats the process for setting this up in LCNC?
• I don’t believe these scales are differential signal, should I look for that?
  
  Many thanks for your help!

I hadn't gotten to the "asking for help" part yet. I only started last night. And much of that was trying to work around bugs in pncconf. Yes, I'll report them.

It's definitely a programming language -- you just find it easy, since apparently you have a background in electronics. I do too. But there's a reason circuits are designed graphically, and not in text files -- they're easier to understand that way.

Played around with grbl a while ago, my little 3 axis BangGood thingy uses grbl, but even that I use that for a test bed when working on stuff, mainly getting hostmot2 firmware running on various Spartan6 dev boards......I can't even explain the time I've spent to getting a working Ethernet setup going. Got a bit to learn about designing PCBs.

The thing is I've worked as either a builder's labouer or civil labourer (road works) the most complicated thing we have to use is a spirit level and string line when grade checking.

pgf wrote:

Another good perspective. You're clearly a LinuxCNC guru. How much time have you spent using Grbl or FluidNC?

You mention no need for coding skills: I'd say that any time you open up a HAL file, you're coding, designing arbitrarily complex digital "circuits" in a text file. An incredibly powerful feature, but where's the UI? It's a graphical concept, one that should be supported via a schematic capture tool. But there's no easy way to even display a HAL file, let alone construct it.

I'm not a guru, I've just made enough mistakes and been frustrated enough and most of the time it's a stupid typo or not interpreting the docs correctly, my issue, not anyone else's. Even with the tools we have for creating the amd64 & RPi4 & 5 images I still mess up when creating images (RPi4 & 5 are the ones I work, it takes a couple of iterations), and it's not a 5 minute job waiting for the tools to do their job.

Pen or pencil if you can't visualise in your head, or you could use a CAD package, although they're not really that complex. There was an attempt to do something with Eagle a few years back. I'd disagree, it's just a bit of configuration. Look at logically.....many of us when we first made our entry into electronics there was no readily available software for designing circuits, like the constipated mathematician we "worked it out with a pencil". I still use pencils, pens and notebooks, sometimes it's just quicker, every so often I have to wipe down my desk to make room for new notes.

"A little respect", how about taking a bit of constructive criticism, to tell the truth the comment wasn't particular to you, it was a general thing. Then again I can't be held responsible for how you take things. And if you're having trouble it's easy enough to ask for help.

Hello everyone,

i have completed the Ethercat installation according to rodw
forum.linuxcnc.org/ethercat/45336-etherc...-how-to-step-by-step

The installation went smoothly and the final test was positive:Component Pins:
Owner   Type  Dir         Value  Name
     4  u32   OUT    0x00000001  lcec.conf.master-count
     4  u32   OUT    0x00000004  lcec.conf.slave-count

The following version of Linuxcnc is installed:
6.1.0-30-rt-amd64 #1 SMP PREEMPT_RT Debian 6.1.124-1 (2025-01-12) x86_64 GNU/Linux

When I check if /sys/kernel/realtime exists, I get /sys/kernel/realtime
When I check the module cia 402 (halcmd loadrt cia402 count=1), I get Using POSIX realtime

Am I wrong as a layman if I assume that this is not real real time and that there may be problems with some modules?