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7i84 would be the best solution.
A cheap BOB is also an option if the 26 pin header is free.

If it works for you = do not change.
If you do want to change, there is an option to use the 2.9.3 and install the RTAI kernel. Might improve latency, but also might not work at all due to old hardware.

www.youtube.com/@tomaberisha5688/videos

www.youtube.com/@toma.cnc1/videos

That's what I expected. As a workaround you can build linuxcnc on your computer:

linuxcnc.org/docs/master/html/code/building-linuxcnc.html

Hi Guys,

I went through many post and wiki for Pitch error compensation but i couldn't grasp totally.
an someone please explain me how pitch error compensation works in Linuxcnc.

some links which I went through are linked below:

www.forum.linuxcnc.org/10-advanced-confi...compensation?start=0
forum.linuxcnc.org/38-general-linuxcnc-q...adscrew-compensation
linuxcnc.org/docs/2.6/html/config/ini_co...tml#sub:AXIS-section


 
Regards
Abhishek

iocontrol.0.user-request-enable can be used as an estop reset signal (eg in place of S6). A short pulse is sent on this output for this purpose. I chose to just stick with the external reset button and connect to iocontrol.0.emc-enable-in, I used a relay on your S6 circuit to do this

If you want an internal estop and an external estop, multiple instances of estop-latch component should let you do this.

Hmm. it does seem i want the 7i84. ill have to figure out where it is.

Start LinuxCNC from a terminal window and the error messages will be displayed there.

Firstly, let me say, thanks for the help so far. You are a star. On Xmas and Boxing Day. Thank you. I know I'm a bit obsessive, but don't expect it from others, so know that ti was appreciated.

So I decided to do a new build based on what I have learnt to date, and I realised during that process that I had made an error in where I got the core files from. I am not a muppet often, but this was good example. I incorrectly used the files from the Probe_Basic directory. So I did a rebuild using the correct files from the Machine_setup_files.

And guess what??? It worked. So forgetting the chair-keyboard interface issue, the instructions are solid with some caveats.

So here is some feedback from me on the setup instructions to help with the documentation for the muppets out there who may not have experience in Linux etc...

a) You need to instruct to delete the comments from the replaced lines. This is for non-linux people.
b) I would recommend commenting out the existing items from the hal and ini files and made comments about the replacement items. My understanding this is good Coding 101. And should help anyone reverse engineer the problems.
c) I have MESA cards, and found that the setup of these was best achieved using the MESACT configurator and not the pncconf. NOTE: pncconf taught me a lot about the different aspects of the configuration items, however, MESACT was better for me for a holistic setup for MESA cards IMHO. It allows you to select all of the cards manually and then verify them.

Separately I noted that when I did the configuration this way, I did NOT need to add the GEOMETRY statement. It was not there initially, and not in your files for transfer, and it started ok, no errors. I still need to do some more testing, however, looks better from atm.

So where are we at:

I could start, no errors. Was able to Jog per my setup and return to home easily. The Switch gear seems to work, and I need to sort out how the Axis limits work when I get this onto a machine. I am bench testing atm.

So we are off to a good start.

Because I am completely new to this sort of thing... CNC setups etc.. and CNC machining... What would be a good reference for learning about how to set up a machine, XYZ coordinates, tool offsets, etc.. that would apply to the Probe Basic layouts. This would include how to start off a simple Conversation job.

Thanks again.

So, what's an easy way to add IO to my 7i96s?

ATC, probe, laser tool setter etc are gonna need a dozen or so more IO than I have.

I can piggyback the 7i77, but I kinda want to leave that for use on the larger machine. I did have a 7i84(?) but it seems to have gotten lost or packed away when I moved from the shop and I can't find it.

Is there an alternate simple cheap option?

Thankyou so far for the help PCW
but unfortunetly no luck with the coding side of things

managed to eventually sucessfully flash the mesa board with the 7i96s_2pwmd.bin after a few complications of mesaflash not being able to detect my board.

but afterwards all seemed to operate my existing cnc with no issues,

however as soon as i tried to update any of the hal or ini for the laser, linuxcnc failed to boot giving me the debug prompt.

is there any way to determine from the debug prompt message it provides what it doesnt like??

have provided my current working hal and ini, does not have any of the new additonal code that id need to run laser off spindle

Hi Aciera,
Thank you for reply.

Update......
Now I delete  " ; "    and try  again.
result is  no error about   " ; "
but error   "syntax error in VERSION script"

Thank you,
Asis

 

Currently running Ubuntu 10.04 and Axis 2.5.4 with the RTAI kernel on a P4 3GHz with 2 G RAM going out to a G540 controller with close to 1000 programs ran.
Latency: Servo 7k (ns) Base 22k (ns) running glxears and accessing directories, etc.
Tried the latest ISO for 2.9.3 RT-Preempt kernel live from an almost-full flash drive
Latency: Servo 77k to 90k(ns) Base 72k (ns) running glxears and accessing directories, etc

Computer is currently standalone, no web surfing or networking. Currently it is partitioned for Ubuntu and an old Windows install.

Wondering if there is hope with this PC or if I am better off getting something else. And if get something else, what? I am not so PC and Linux savvy.

Refurbished i5 desktops start around 130$ in my market Dec 2024  but would need a card for the parallel port.

I saw on another thread where a solution was to load a Wheezy ISO which gets one up to 2.7.X LinuxCNC IIRC (yes?)

Thanks, I appreciated the input.





 

Hello, thank you very much and a very Merry Christmas!...
Since I would like to see your project, maybe share it on your YouTube channel, I want to learn and I was really happy with the news that I could use Ubuntu to work seriously.
Thanks a lot!...

Hello, thank you very much and a very Merry Christmas!...
It doesn't have that port, what board do you recommend for this little one?
Thanks a lot!...