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  • clayton2ndtry
06 Nov 2025 00:56
"file ./live/filesystem.squashfs failed the MDS checksum" was created by clayton2ndtry
I burned the 2.9.4 ISO to a DVD.  Because my DVDROM drive went bad recently, I bought a replacement.  Amazingly, I found an exact match for my Dell Optiplex 960.  It plugged right in, passed diagnostics and successfully booted from DVD.  I went a burned it again.  Same problem.  Is there a known problem with the release ISO, or does Windows 11 ISO burn just not work?
  • FPVUALAB
06 Nov 2025 00:44
Replied by FPVUALAB on topic Bricked Mesa 7i92T
I downloaded the archive for mesa 7i92t cards from the official website, but there are so many different firmware versions that I don't understand which folder I need to copy.
  • FPVUALAB
06 Nov 2025 00:41
Replied by FPVUALAB on topic Bricked Mesa 7i92T
The thing is, I don't know how to do it))
This is my first time doing this, and I'm already panicking because I've been trying to figure it out for over a month))) Now I've decided to ask people for help!))
My LinuxCNC doesn't have any firmware for Mesa 7i92TH at all.
  • PCW
06 Nov 2025 00:08
Replied by PCW on topic Bricked Mesa 7i92T
mesaflash 3.5.16 is the latest

If you want 4 stepgens and 4 encoders, what pinout do you want?

(If for a 7I85S you would use 7i92t_7i85sx2d.bin = config fir 7I85S with 4 stepgens, 4 encoders, 1 sserial port per connector)
  • tommylight
05 Nov 2025 23:59
Replied by tommylight on topic Gmoccapy tool setter block height overrides G54 zero
Moved to "GmoccaPy" section.
  • tommylight
05 Nov 2025 23:57
Replied by tommylight on topic Help with Wireless Handwheel XHC-WHB04B-6 (wrong Product ID)
@Rod,
We can not edit your youtube videos on your youtube studio! :)
-
how is the html code for grin?
  • tommylight
05 Nov 2025 23:55
Replied by tommylight on topic High frequency ohmic struggles
I think there are much bigger issues than ohmic sensing from what you describe, namely bad wiring/shielding/grounding in general, so my strong advice is:
-do not fire the torch before grounding things properly
-make sure the power socket and the machine are grounded and the shop has proper ground rods
-make sure the PC is grounded
-make sure the plasma source is grounded
-disconnect anything ohmic related from Mesa
-disconnect the THCAD from Mesa
-connect THCAD only to plasma source
-wire and test the new Mesa, make sure everything works properly, wire the Torch ON to plasma source
-power on the plasma source and cnc machine and start QtPlasmaC or PlasmaC or whatever you are using
--enable LinuxCNC, jog around a bit, then use the Torch PULSE on screen set to 1 sec (default) ONLY ONCE !!!!!
-did anything move/burn/make strange noise/screen blank/PC turn off or lock/Mesa reset or lost connection/THCAD smoking ?
If any of those is yes, turn OFF everything and go back to wiring/shielding/grounding (goggle Hypetherm grounding they have a nice general guide)
If all above are no, try the pulse again and again, waiting 5 seconds between, make the pulse time 3 seconds and test several times again
If all that goes OK, try to do some manual cutting (use F9 to probe and fire the torch then jog manually), do several short cuts
If all good, power down and wire the THCAD to Mesa, do the same procedure from the line with two - signs above
ONLY if all tests go without issues proceed to wiring and testing Ohmic sensing. Again test from line with two -
  • tar_san
05 Nov 2025 23:55
How to set current encoder pos to current position while homing by Driver. was created by tar_san
I have a problem. (EtherCAT Servo motor  Incremental )

1) while Homing by driver ..
2) begin to move  and then push Emstop.
3) Turn on " Machine Power "
4)  Suddenly servo motor move to the previous position( when I push homing button)  really crazy fast .

I think while homing, Servo driver control the position.

So I believe , While homing, LinuxCNC control position must be set by current servo driver encoder pos.

Please give me a hint to fix this problem.

I'm using ..
LinuxCNC Version 2.9.4
Lichuan LC10E Servo motor (17bit inc) 
CIA402, Custom Homing component
 
  • FPVUALAB
05 Nov 2025 22:22
Replied by FPVUALAB on topic Bricked Mesa 7i92T
LinuxCNC penultimate version (and possibly 2 versions before that)
Mesaflash 3.5.16 (was updated a little earlier because it did not recognise my board)
  • Hakan
05 Nov 2025 21:16
Replied by Hakan on topic Trouble with Cia402 drive configuration
They are numbered after the network chain. 0 is closest to the master, 1 is next, 2 is nextnext and so on .
Can't change that afaik. Rearrange the network cables if you have to have a certain numbering.

Happy it was so easy this time :)
 
  • PCW
05 Nov 2025 21:10
Replied by PCW on topic Bricked Mesa 7i92T
What version of mesaflash and LinuxCNC do you have?

mesaflash --version


To install the latest LinuxCNC version, go to github.com/LinuxCNC/mesaflash
 then scroll to the bottom for "Quickstart" instructions.
  • Hakan
05 Nov 2025 21:07
Replied by Hakan on topic MonoKrom - QtPyVCP GUI for PlasmaC and Mill
Okay, I just copied the linuxcnc config directory from monokrom-vcp to my config directory.

Go sim.monokrom/plasma
Code:
debian$ linuxcnc xyz.ini
Gives the following, missing module imp which is deprecated when searching for it.
Code:
Traceback (most recent call last):   File "/usr/bin/monokrom_plasma", line 8, in <module>     sys.exit(main())              ~~~~^^   File "/usr/lib/python3/dist-packages/monokrom/plasma/__init__.py", line 8, in main     monokrom.main('plasma', opts)     ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^   File "/usr/lib/python3/dist-packages/monokrom/__init__.py", line 111, in main     qtpyvcp.run_vcp(opts, config_file)     ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^   File "/usr/lib/python3/dist-packages/qtpyvcp/__init__.py", line 26, in run_vcp     run(*args, **kwargs)     ~~~^^^^^^^^^^^^^^^^^   File "/usr/lib/python3/dist-packages/qtpyvcp/app/__init__.py", line 129, in run     launch_application(opts, config)     ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^   File "/usr/lib/python3/dist-packages/qtpyvcp/app/launcher.py", line 70, in launch_application     app = _initialize_object_from_dict(config['application'])   File "/usr/lib/python3/dist-packages/qtpyvcp/app/launcher.py", line 205, in _initialize_object_from_dict     obj = _get_object_by_referance(provider)   File "/usr/lib/python3/dist-packages/qtpyvcp/app/launcher.py", line 193, in _get_object_by_referance     return getattr(importlib.import_module(modname), attrname)                    ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^   File "/usr/lib/python3.13/importlib/__init__.py", line 88, in import_module     return _bootstrap._gcd_import(name[level:], package, level)            ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^   File "<frozen importlib._bootstrap>", line 1387, in _gcd_import   File "<frozen importlib._bootstrap>", line 1360, in _find_and_load   File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked   File "<frozen importlib._bootstrap>", line 935, in _load_unlocked   File "<frozen importlib._bootstrap_external>", line 1026, in exec_module   File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed   File "/usr/lib/python3/dist-packages/qtpyvcp/app/application.py", line 7, in <module>     import imp ModuleNotFoundError: No module named 'imp'
  • bentiggin
05 Nov 2025 21:03
Replied by bentiggin on topic High frequency ohmic struggles
There is a yellow blinking light. I'll try to see if I can measure anything on 1x with my multimeter.
Thanks for all your help and the awesome mesa products.

On another forum, I saw the os3t-01 from robot3t.com. It's an ohmic sensor that can supposedly handle hf.
Does anyone have any experience with this company or their products?
  • FPVUALAB
05 Nov 2025 20:59
Replied by FPVUALAB on topic Bricked Mesa 7i92T
Hello! Please tell me how to update Mesaflash to the latest version and why it is missing in the latest version of LinuxCNC? Also, please tell me which firmware version I need to flash the board to get 4 axes with 4 encoders? Thank you very much!
  • peterpan
05 Nov 2025 20:52
Replied by peterpan on topic Trouble with Cia402 drive configuration
You are completely correct. Do you have a clue as to why slave 3 switched to slave 0, and is there a way to force the order?
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