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  • kale hater
07 Nov 2025 21:53 - 07 Nov 2025 22:25
Replied by kale hater on topic Plasma Tube Cutter with only 2-Axis on QTPlasmaC
DANNNNGGGGGGG. This is so impresive. The arc cuts are actually so clean. Wish I had something like this in my FSAE group.
  • Quail
07 Nov 2025 21:41
Replied by Quail on topic Plasma Tube Cutter with only 2-Axis on QTPlasmaC
Thanks for being a good sport haha.

Yeah we had to do some tricky stuff and use the m64 and m65 commands for torch on and off in the g-code. Also had to manually add in the pauses before and after cutting to ensure a good arc and full cut had been made.

There's some other odd stuff going on in the background too. The machine thinks the rotary axis is linear and 1 inch of travel is actually 1 rotation. We made a post processor for sheetcam that scales any unwrapped tube profile to be within 1inch as well to correspond to the 1 revolution needed. Lots of strange stuff happening lol.
  • tommylight
07 Nov 2025 21:38
Replied by tommylight on topic realtime log position to txt use python script
I am pretty sure it did till 2.7 as i used it on every machine, and we had power outages daily back then.
No idea now as we have no power outages so i do not use it anymore.
  • kale hater
07 Nov 2025 21:34 - 07 Nov 2025 22:24
Replied by kale hater on topic Plasma Tube Cutter with only 2-Axis on QTPlasmaC
YOOOOOOOOO. This is so well done
  • tommylight
07 Nov 2025 21:33
Replied by tommylight on topic Plasma Tube Cutter with only 2-Axis on QTPlasmaC
Who? Why? Where? When? :)
Nicely done and thanks for reporting back and for proving everything is possible with LinuxCNC.
  • Hakan
07 Nov 2025 21:29 - 08 Nov 2025 07:42
Replied by Hakan on topic RaspberryPi 4/5 Ethercat Rtelligent ECT60 Synchronization error
I think it is something the Rpi does at regular intervals, drops the network interface for some reason.
Inspired by some googling can you search through the syslog to see if you find why eth0 is reset?
Code:
sudo journalctl -b | grep eth0

Edit. Another idea is to configure NO ip address on the interface.
Maybe it can prevent the os from doing ip-related things to the interface.
  • Quail
07 Nov 2025 21:06
Plasma Tube Cutter with only 2-Axis on QTPlasmaC was created by Quail
They told me it wasn't possible! They doubted me! Mwahahahaha!!

Functional 2-axis tube cutter using no Z-axis on QTPlasmaC:
 

 
  • fery15sty
07 Nov 2025 21:00
Replied by fery15sty on topic realtime log position to txt use python script
I've tried POSITION_FILE, but it can only save the position when linuxcnc is closed normally. When my PC is suddenly turned off, such as due to a power outage or linuxcnc error, POSITION_FILE doesn't save the last position of the machine movement.
  • ragstech
07 Nov 2025 20:47
Dual X Axis Control was created by ragstech
Hello all,
I am consulting for a company that has a 2005 Onsurd 3 axis. It has an AMC-B that is going out. We are looking at retrofit options, and LinuxCNC appears to be at least heading in the right direction. With LinuxCNC, would it be able to do the following?

-Control 2 X axis for two tables that may run independent, together, or alternating
Code:
The CNC operator provided this description for this functionally as it currently is: "In the machine programming, there is a miscellaneous parameters that you go into on the keypad and at that point, it’ll ask you Table type and you type one and then hit the inner button if you want Table one only or two and enter that if you only want table 2 only or three and that if you want the two tables linked together or four and enter there and that’ll give you the alternating tables and then you can assign a job to each table. "

-Control a servo to align the 12 tool changer
-Sequence I/O to process the tool change

Can someone provide insight on this?

Thanks!



Brandon
  • tommylight
07 Nov 2025 20:41
Replied by tommylight on topic MonoKrom - QtPyVCP GUI for PlasmaC and Mill
It says LinuxCNC post processor but it does output line numbers with N, why?
Mach3 uses line numbers, not LinuxCNC, so try removing them.
  • Sandro
07 Nov 2025 19:53
Replied by Sandro on topic MonoKrom - QtPyVCP GUI for PlasmaC and Mill
I still have the error “unknown word where unary operation could be” even when I output a .ngc file from SheetCam. I've test with the LinuxCNC plasma post processor for SheetCam. In Monokrom I am using the plasma_gcode_preprocessor (default with Monokorm). I have attached the pre processor log. There everything seems to work. However the LinuxCNC parser seems to be unable to read whatever the plasma_gcode_preprocessor puts out. The error comes from here:  github.com/LinuxCNC/linuxcnc/blob/af15a4...interp_read.cc#L1424

Preprocessor log:
Warning: Spoiler!
  • Masiwood123
07 Nov 2025 19:43
Replied by Masiwood123 on topic beta bulleri for retrofit?


Sorry for the poor English, thanks for your help in the future.
  • COFHAL
07 Nov 2025 19:23
Replied by COFHAL on topic Rotary axis Display
Could you share your QtVismach file?
  • PCW
07 Nov 2025 18:25 - 07 Nov 2025 18:26
Replied by PCW on topic Mesa 7i96s Torch on and arc ok problems?
I would measure the voltage between OUT0+ and OUT- when on to diagnose the issue.

it should  be much less than a volt

If OUT5 is used instead (this is suggested for Plasma systems) the voltage may be higher
but no more than 1 volt or so.

 
  • kate
07 Nov 2025 18:15
Replied by kate on topic RaspberryPi 4/5 Ethercat Rtelligent ECT60 Synchronization error
I tried this ethtool --set-eee eth0 eee off but it did not help at all. No I have tested two independent setups and inserting ethernet switch between Rpi and ETT60n solved the issue. In rpi5 there is no l --set-eee eth0 eee available but same issue when using without switch.
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