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  • rodw
  • rodw's Avatar
13 Jul 2026 10:37
Replied by rodw on topic Every time I boot LinuxCNC, the Xg54 position reading increase 256

Every time I boot LinuxCNC, the Xg54 position reading increase 256

Category: General LinuxCNC Questions

First the Linuxcnc version you quote is invalid. What is it really?
Second, 256  is a very signiicant number for computers because an 8 bit number (1 byte) counts from 0-255 which a computer's way of counting from 1-256.
The  G54 values are stored in the var file. I could not see exactly what us the varibale number on a quick look. I would check this after you close to make sure its not being incremented on close,

My guess is that Linuxcnc will be OK but somehow outside of LinuxCNC, your encoder value is incremented by 1 X  8 bit byte.
  • RoberCNC
  • RoberCNC
13 Jul 2026 10:15
Replied by RoberCNC on topic Problem with PROBE tab after running a program

Problem with PROBE tab after running a program

Category: Qtvcp

Hi there.

When choosing the PROBE tab with the file in the indicated directory, a pop-up window comes with this error:
"Traceback (most recent call last):
File "/usr/share/qtvcp/screens/qtdragon_hd/qtdragon_hd_handler.py", line 626, in main_tab_changed
self.adjust_stacked_widgets(index)
File "/home/izan/linuxcnc/configs/QtDragon/qtvcp/screens/qtdragon_hd/qtdragon_hd_handler.py", line 126, in adjust_stacked_widgets
self.w.setCurrentIndex(num)
~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/qtvcp/qt_makegui.py", line 493, in __getitem__
return getattr(self, item)
^^^^^^^^^^^^^^^^^^^
AttributeError: 'VCPWindow' object has no attribute 'dro_button_stack_4' "

(Attached the report)

In the other hand, I´ve set 99 tool number to probe, and after running a program if I go to TOOL tab, select it and push the M61 button to choose, it runs pretty good despite the down yellow line appears with the "cannot switch pages while in AUTO mode"
  • BlownCorona
  • BlownCorona
13 Jul 2026 08:14
Replied by BlownCorona on topic Linux_Mint_22.1_LinuxCNC_2.10.iso

Linux_Mint_22.1_LinuxCNC_2.10.iso

Category: Installing LinuxCNC

that is essentially the commands Ive been trying.

below shows the error that keeps cropping up
Ign:1 http://packages.linuxmint.com xia InRelease                                  
Hit:2 http://archive.ubuntu.com/ubuntu noble InRelease                             
Hit:3 https://www.synaptics.com/sites/default/files/Ubuntu stable InRelease        
Hit:4 http://packages.linuxmint.com xia Release                                    
Get:5 http://security.ubuntu.com/ubuntu noble-security InRelease [126 kB]          
Get:6 http://archive.ubuntu.com/ubuntu noble-updates InRelease [126 kB]       
Hit:8 https://ppa.launchpadcontent.net/freecad-maintainers/freecad-stable/ubuntu noble InRelease
Get:9 http://archive.ubuntu.com/ubuntu noble-backports InRelease [126 kB]          
Get:10 http://security.ubuntu.com/ubuntu noble-security/main amd64 Components [44.8 kB]
Get:11 http://archive.ubuntu.com/ubuntu noble-updates/main i386 Packages [517 kB]
Get:12 http://security.ubuntu.com/ubuntu noble-security/universe amd64 Components [76.3 kB]
Get:13 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages [1,092 kB]
Get:14 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 Components [181 kB]
Get:15 http://archive.ubuntu.com/ubuntu noble-updates/universe i386 Packages [1,130 kB]
Get:16 http://archive.ubuntu.com/ubuntu noble-updates/universe amd64 Packages [1,660 kB]
Get:17 http://archive.ubuntu.com/ubuntu noble-updates/universe amd64 Components [388 kB]
Get:18 http://archive.ubuntu.com/ubuntu noble-updates/multiverse amd64 Components [940 B]
Get:19 http://archive.ubuntu.com/ubuntu noble-backports/main amd64 Components [5,744 B]
Get:20 http://archive.ubuntu.com/ubuntu noble-backports/universe amd64 Components [10.5 kB]
Fetched 5,484 kB in 5s (1,023 kB/s)                                  
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
2 packages can be upgraded. Run 'apt list --upgradable' to see them.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package linux-headers-6.13-rt-amd64
E: Couldn't find any package by glob 'linux-headers-6.13-rt-amd64'

i havn't been able to manually find a matching header either,  only some very close but older revisions and i dont know enough about linux to go about building it up to suit the above revision, or if thats even something that could be done.
 
  • RoberCNC
  • RoberCNC
13 Jul 2026 06:42
Replied by RoberCNC on topic Problem with PROBE tab after running a program

Problem with PROBE tab after running a program

Category: Qtvcp

It is Qtdragon_hd, that's right.
I will try along the day and feedback.
  • Aciera
  • Aciera's Avatar
13 Jul 2026 06:33 - 13 Jul 2026 06:33
Replied by Aciera on topic Very small 4 axis mill for cutting plastic materials

Very small 4 axis mill for cutting plastic materials

Category: Show Your Stuff

-the thing with C axis going from approx. 110 to -280 in about 10 lines of gcode does not seem OK


sounds like you might have downloaded the first version of the filter script which I modified shortly after posting to fix exactly this issue. So make sure you use the current one with the transition handling:

if dt < -180: # handle 180 -> -180 transition
current_c += (dt+360)
elif dt > 180: # handle -180 -> 180 transition
current_c += (dt-360)
else:
current_c += dt

I have tested this with all three {1,2,3}.pts files and the result looks fine to me. (The C axis values never goes negative)
  • JohnnyCNC
  • JohnnyCNC's Avatar
13 Jul 2026 02:17
Replied by JohnnyCNC on topic manual tool change with tool length probe

manual tool change with tool length probe

Category: G&M Codes

Attached are the Python files that I modified for my M6 remap with auto-tool measurement.  My changes are tagged with "JHK".
Enjoy
John 
  • tommylight
  • tommylight's Avatar
13 Jul 2026 00:33
Replied by tommylight on topic Very small 4 axis mill for cutting plastic materials

Very small 4 axis mill for cutting plastic materials

Category: Show Your Stuff

Almost forgot, also swapped in hal the X and Z axis, so now if you turn the machine on the left side it is exactly as in the Vismach preview, and set the ini for A axis to home at 90, so i do not have to do that at every start.
  • M4MazakUser
  • M4MazakUser
13 Jul 2026 00:13 - 13 Jul 2026 01:10
Replied by M4MazakUser on topic C axis milling cycles. Anyone written any?

C axis milling cycles. Anyone written any?

Category: General LinuxCNC Questions

Yeah, not really that easy though, I'm really going to have to write one so it's more like an easy to write cycle on the machine. Like a conversational control.
  • cmorley
  • cmorley
12 Jul 2026 22:32
Replied by cmorley on topic Problem with PROBE tab after running a program

Problem with PROBE tab after running a program

Category: Qtvcp

Ok here is the right file for 2.9 version.

As for the other error, set a probe tool number on the probe page - it defaults to black which won't be read correctly.
  • cmorley
  • cmorley
12 Jul 2026 22:24
Replied by cmorley on topic Problem with PROBE tab after running a program

Problem with PROBE tab after running a program

Category: Qtvcp

hold on I did it for the wrong version of linuxcnc... stay tuned
  • cmorley
  • cmorley
12 Jul 2026 22:11 - 13 Jul 2026 22:56
Replied by cmorley on topic Problem with PROBE tab after running a program

Problem with PROBE tab after running a program

Category: Qtvcp

I assume you are using qtdragon_hd:
Ok in your config folder there should be a folder: qtvcp/screens/qtdragon_hd
In that folder add the file included here, name it qtdragon_hd_handler.py
Then run as normal.
If any thing goes wrong just remove or rename the file.

Chris
  • dm17ry
  • dm17ry's Avatar
12 Jul 2026 22:11
Replied by dm17ry on topic Seeking Guidance on Mitsubishi MR-J3 Serial Encoder Protocol (J-A22/J-A24) for M

Seeking Guidance on Mitsubishi MR-J3 Serial Encoder Protocol (J-A22/J-A24) for M

Category: General LinuxCNC Questions

i believe all non-cnc encoders (OSA/OBA 14,17,18,24) answer on both MR and MD pairs simultaneously. OSA253/104/105 only answer on MD so you need to use 4 wire connection with them.
  • mark-v-d
  • mark-v-d
12 Jul 2026 20:02
Replied by mark-v-d on topic Seeking Guidance on Mitsubishi MR-J3 Serial Encoder Protocol (J-A22/J-A24) for M

Seeking Guidance on Mitsubishi MR-J3 Serial Encoder Protocol (J-A22/J-A24) for M

Category: General LinuxCNC Questions

I've made my own motordrive and used the Mitubishi encoders extensively.
I have tested several motors, from the MR-PQ, MR-MFS, MR_SFS and MR-KP
series. They all seem to use the same protocol and checksum. Some types
use full-duplex communication and others use a single bi-directional
version.

From what I have seen, it is important to poll the motor at a fixed
frequency of 4.5kHz.

My source code is available at:

github.com/mark-v-d/motor_control/blob/h...4400/src/encoder.cpp

The class mitsubishi_PQ_t is the full-duplex version of the protocol,
and mitsubishi_MFS13_t is the half-duplex implementation.

Basically start sending 0x1a at 2.5Mb/s at 4.5kHz and the encoder starts
responding. There is a checksum at the end of the packet.
  • RoberCNC
  • RoberCNC
12 Jul 2026 19:46
Replied by RoberCNC on topic Problem with PROBE tab after running a program

Problem with PROBE tab after running a program

Category: Qtvcp

Great!

Yes, I would be interested to fix it, if you would be so kindly to guide me on how to do it.

Thank you very much Crhis!
  • RMJ fabrication
  • RMJ fabrication
12 Jul 2026 19:45
Replied by RMJ fabrication on topic Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Category: Plasmac

I connected a second PC to test wether the PC or the mesa board is dropping the connection. The result is the second PC works well for well over 20 minutes without interruptions or errors. it seems as the disconnected link was caused by the original PC. 
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