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  • unknown
  • unknown
22 Nov 2025 12:18

Updating from LINUXCNC - 2.8.4-23, Mint 20.3 - gmoccapy lathe structure

Category: Gmoccapy

Until the issue with the 5i25 is sorted no amount of reinstalling Linuxcnc is going to fix the issue.
It's quite apparent that the config was working before. What is stopping it now from working is the error with 5i25.
It's akin to trying to get a car going by replacing the engine when the ROM in the ecu is bad.
  • Muzzer
  • Muzzer
22 Nov 2025 11:58

Updating from LINUXCNC - 2.8.4-23, Mint 20.3 - gmoccapy lathe structure

Category: Gmoccapy

Many thanks for the helpful suggestions! Notwithstanding the ever present Domestic Manager and her task list, I will have a go at those suggestions.
  • Cleaning and reseating the connectors sounds like a good plan. As you say, software doesn't simply evolve of its own accord. My mobo has only one ISA slot.
  • I have a spare SSD, so will do the install on that, leaving the existing system untouched.
  • "Really all you need to port across is your ~/linuxcnc folder" - I will look into this. Presumably that folder contains config data rather than executables etc.
  • If I'm still struggling with the 5i25 bit, I'll post a more focused query and perhaps PCW will be able to point me in the right direction.
Thanks again.
  • Sekai
  • Sekai
22 Nov 2025 11:19 - 22 Nov 2025 11:29

Chinese Mesa 7I92 from aliexpress NEW

Category: Driver Boards

Hi.I bought a mesa card from aliexpress to power my lathe.The board works with 10.10.10.10 it pings and output that gives me with command:sudo mesaflash --device 7i92 --addr 10.10.10.10 --readhmid
configuration Name: HOSTMOT2

General configuration information:

  BoardName : MESA7I92
  FPGA Size: 9 KGates
  FPGA Pins: 144
  Number of IO Ports: 2
  Width of one I/O port: 17
  Clock Low frequency: 100.0000 MHz
  Clock High frequency: 200.0000 MHz
  IDROM Type: 3
  Instance Stride 0: 4
  Instance Stride 1: 64
  Register Stride 0: 256
  Register Stride 1: 256

Modules in configuration:

  Module: WatchDog
  There are 1 of WatchDog in configuration
  Version: 0
  Registers: 3
  BaseAddress: 0C00
  ClockFrequency: 100.000 MHz
  Register Stride: 256 bytes
  Instance Stride: 4 bytes

  Module: IOPort
  There are 2 of IOPort in configuration
  Version: 0
  Registers: 5
  BaseAddress: 1000
  ClockFrequency: 100.000 MHz
  Register Stride: 256 bytes
  Instance Stride: 4 bytes

  Module: LED
  There are 1 of LED in configuration
  Version: 0
  Registers: 1
  BaseAddress: 0200
  ClockFrequency: 100.000 MHz
  Register Stride: 256 bytes
  Instance Stride: 4 bytes

Configuration pin-out:

IO Connections for P2
DB25 pin#             I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir

 1                      0   IOPort       None           
14                      1   IOPort       None           
 2                      2   IOPort       None           
15                      3   IOPort       None           
 3                      4   IOPort       None           
16                      5   IOPort       None           
 4                      6   IOPort       None           
17                      7   IOPort       None           
 5                      8   IOPort       None           
 6                      9   IOPort       None           
 7                     10   IOPort       None           
 8                     11   IOPort       None           
 9                     12   IOPort       None           
10                     13   IOPort       None           
11                     14   IOPort       None           
12                     15   IOPort       None           
13                     16   IOPort       None           

IO Connections for P1
DB25 pin#             I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir

 1                     17   IOPort       None           
14                     18   IOPort       None           
 2                     19   IOPort       None           
15                     20   IOPort       None           
 3                     21   IOPort       None           
16                     22   IOPort       None           
 4                     23   IOPort       None           
17                     24   IOPort       None           
 5                     25   IOPort       None           
 6                     26   IOPort       None           
 7                     27   IOPort       None           
 8                     28   IOPort       None           
 9                     29   IOPort       None           
10                     30   IOPort       None           
11                     31   IOPort       None           
12                     32   IOPort       None           
13                     33   IOPort       None 

The problem is i dont know how configure linuxcnc. I have the doc from the seller uploadnow.io/f/9v0gkpb
This is my first time with mesa card.
  • T.Frei
  • T.Frei
22 Nov 2025 10:10
PoKeys57CNC HAL component was created by T.Frei

PoKeys57CNC HAL component

Category: HAL

Hi all,
With Windows 10 getting slowly obsolete, and also since I also was not 100% happy with Mach4, I looked into LinuxCNC as an alternative.
I already found the other topic on the PoKeys HAL driver , however was not succesful getting Dominiks component to run.
Before reverse engineering that component, I thought to myself "how hard could it be?". I do not need many features for my setup.

Said and done, here is my own component to run a 3-axis mill: PoKeysMotionComponent on GitHub.
I still have some things in the backlog to do, but you can already use it. Hopefully it helps someone out there.
 
  • abs32
  • abs32
22 Nov 2025 09:49 - 22 Nov 2025 09:54

How to fix "Queue is not empty after probing"

Category: General LinuxCNC Questions

it seems to me that this is "not sporty". Together we must force the correctly given commands to be executed correctly. G38.3 should not produce such errors.
You suggested changing the interface to qtplasmac, but it uses the same g-code and linuxCNC. And I have a milling machine.
Unfortunately, my level (of knowledge) is not yet such that I immediately understand the "right path" from the hints of the M130. I would appreciate more precise instructions.
Editing the source code file, as suggested by AkkiSan and Aciera, in my opinion = the right path. And I would be ready to experiment. But I need instructions on exactly how to get v2.9.7 to use these changes.
  • rodw
  • rodw's Avatar
22 Nov 2025 09:44

How to fix "Queue is not empty after probing"

Category: General LinuxCNC Questions

My recommendation is to migrate your plasma machine to use qtplasmac which has obsoleted the thcud component.
It does not use g38 but probes with external offsets and also retains your probe away from the material.

I have used gcode probing for plasma without issues. I suspect your problem is related to your gcode given M130 is a custom gcode.

I would do some testing of your probe moves as MDI commands to isolate your GUI and custom gcode
  • Hakan
  • Hakan
22 Nov 2025 09:41

EtherCAT + CiA402 Servo: OP state reached, but axis won’t move (only Following E

Category: General LinuxCNC Questions

Interesting to see you switching between spindle and axis.

I wonder how it works with setting a position in PV mode.
Setting position and velocity at the same time, I am not sure that works.
  • abs32
  • abs32
22 Nov 2025 09:23 - 23 Nov 2025 08:53

How to fix "Queue is not empty after probing"

Category: General LinuxCNC Questions

v2.9.7, encountered the same problem – Die Warteschlange ist nach dem Prüfen nicht leer.

I see that references to this string have been found in the source files.

From the description " 2. Das probe_flag ist wahr, aber die HME-Befehlswarteschlange ist nicht leer: NCE_QUEUE_IS_NOT_EMPTY_AFTER_PROBING" follows that such an error should occur, for example, in the combination -
g38.2
g38.2

But when executing g38.3 (single), such an error can never happen. Maybe it would be wise then to disable some of the checks completely for the 38.3 command option?

The process is greatly influenced by the speed setting -
1. The kinetic energy of an impact is a function of the square of the velocity g38.3 (strain)
2. the machine does not stop immediately. After operation, a stop occurs and during this time the Z coordinate changes. An example is flights: at speeds 110=0.006785, at 180=0.012583. According to the sensor documentation "scan speed 200". Acceleration at my Z axis = 5000.
3. the reverse stroke of g38.5, accordingly, first overcomes the flight from g38.3, then the hysteresis of the sensor and now braking and stopping with its flight. 

In my case, reducing the speed of the G38.5 from 300 to 200 increases the overall processing speed - by reducing flights (g38.3 at speed 110)

And if possible, please give instructions for (beginners) - I’ll take this file and make changes to it. How exactly to get the system to use these changes? I mean the timid hope that there will be a cunning way without a complete reassembly.
 
  • Hakan
  • Hakan
22 Nov 2025 09:03 - 22 Nov 2025 09:07

Machine is trying to move to new position just after lcnc startup

Category: Basic Configuration

Can you verify that encoder position or pos-fb doesn't change after a few seconds?
Just so we know?

You may not be able to fire up halscope in time for that,
or if you are unable to catch it in halshow.
I propose you use sampler/halsampler.

Add last in your hal file
loadrt sampler depth=10000 cfg=fs
addf sampler.0 servo-thread
net z-pos-fb sampler.0.pin.0     # net for z position feedback to the joint
net z-drv-act-pos sample.0.pin.1 # net between cia402 and lcec for z actual-position

Adjust net names to yours.

Within a few (10 max) seconds after you started linuxcnc type the command "halsampler -t data.out"
After the coordinate on the axis screen has happened, hit Control-C on halsampler.
You have now a readable file of recorded values. Open the file in Excel/Calc and plot XY plot.

 [/code]
  • Aciera
  • Aciera's Avatar
22 Nov 2025 08:46

Machine is trying to move to new position just after lcnc startup

Category: Basic Configuration

If I set the drives to display encoder count the value doesn't change when I close lcnc so if it were an encoder feedback issue I'd expect to see changing values on the drive its self.


have you looked at the values of the pos-fb pins in halshow?
halshow can be started automatically from a saved session using the [APPLICATION] section of your ini file:
[APPLICATIONS]
APP = halshow  your-file-here.halshow
  • SPH
  • SPH's Avatar
22 Nov 2025 08:23

Machine is trying to move to new position just after lcnc startup

Category: Basic Configuration

I've found the EtherCat experience to be absolutely positive so far. I had this retrofit up and running (with a lot of help from the forum) in a day or so compared to about a month on the previous machine.
  • SPH
  • SPH's Avatar
22 Nov 2025 08:13

Machine is trying to move to new position just after lcnc startup

Category: Basic Configuration

While it's certainly possible that it's related to EtherCat, I don't think so. The machine movement is absolutely rock solid and silent and so long as I don't enable the machine until Lcnc has updated the position values.
Lcnc is changing the machine start possition after it loads and it looks to me like it's loading the g54 values from the linuxcnc.var file about 5 seconds after it loads. It seems to correspond with the axis toolchanger message in the bottom right disappearing but that could be purely coincidence.
The 'jump' occurs every time I restart Lcnc but I'm not powering off the drives. If I set the drives to display encoder count the value doesn't change when I close lcnc so if it were an encoder feedback issue I'd expect to see changing values on the drive its self.
It seems more like an issue of incorrectly saving machine coordinates on close or load.
  • rodw
  • rodw's Avatar
22 Nov 2025 08:05
Replied by rodw on topic linuxcnc_2.9.4-amd64.hybrid.iso cheksum?

linuxcnc_2.9.4-amd64.hybrid.iso cheksum?

Category: General LinuxCNC Questions

Well a slightly newer version could work too.

Try whatever came right before "Bookworm", see if it's old enough.
 

Thats the thing. The LinuxCNC version before Bookworm was on a Wheezy ISO. There was no linuxcnc version released on Bullseye (5.10 kernel) which precedes Bookworm. We don't want to hear Ubuntu being suggested. That's bad advice (as is using Wheezy which is akin to suggesting people drive a Model T Ford)
  • rodw
  • rodw's Avatar
22 Nov 2025 07:45 - 22 Nov 2025 07:46

Is something up with 2.9.7 (joint errors)

Category: General LinuxCNC Questions

Can you tell about your computer hardware and how you installed linuxcnc?  What Linux version?  What does a latency-histogram --nobase --sbins 1000 display? There could be network latency issues on newer Debian versions, but that only affects Mesa ethernet cards. I would be looking more at secure boot, isolcpus and BIOS settings.
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