Advanced Search

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?

I have connected everything and flashed the bitfile from PCW. But it looks i have not configured the second card in the hal properly.
Attached the output of mesaflash readhmi, the hal and the crash report from lcnc
any ideas?
thanks in advance.