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  • tommylight
  • tommylight's Avatar
11 Nov 2025 21:37
Replied by tommylight on topic [SOLVED] Backlash issues on Y-AXIS

[SOLVED] Backlash issues on Y-AXIS

Category: Advanced Configuration

Your ini file is a mess and very hard to follow, but:
Y axis/joint has unreasonably big ferror and min_ferror values, probably should be close to what X axis has
Backlash_speed is set at 6000 inch !!!
-
What is the drive train? Belt? Screw? Ball screw?
Since it is a laser, i would advise belt only on X and Y.
  • tommylight
  • tommylight's Avatar
11 Nov 2025 21:29
Replied by tommylight on topic beta bulleri for retrofit?

beta bulleri for retrofit?

Category: CNC Machines

Try jogging with on screen buttons, does it still jerk?
The wire you connected 24V is the machine enable, so it goes to Mesa 7i77 output, while the other wire should go to input as machine is ready. Does the other pin come from the ON/START/GREEN button?
Tuning does not seem OK, but it is very nice that you can jog at low speed, try increasing the speed gradually and see this for further instructions:
forum.linuxcnc.org/10-advanced-configura...ning-detailed-how-to
  • dgdodo
  • dgdodo
11 Nov 2025 21:18
Replied by dgdodo on topic [SOLVED] Backlash issues on Y-AXIS

[SOLVED] Backlash issues on Y-AXIS

Category: Advanced Configuration

I Tried with 'hal_pi_gpio.write base-thread' at the end of the base-thread, but it does not make any difference.
Thanks for the info anyways.
  • tommylight
  • tommylight's Avatar
11 Nov 2025 21:09

Beckhoff Problem with Communication (TwinCAT, LinuxCNC)

Category: EtherCAT

No double posting.
And fix the tittle to explain what it is about.
Thank you.
  • peterpan
  • peterpan
11 Nov 2025 20:42
Replied by peterpan on topic Trouble with Cia402 drive configuration

Trouble with Cia402 drive configuration

Category: EtherCAT

I can't find much on Ethercat homing. Maybe I'll be able to figure it out down the road. How would I set it up with Inputs on the EL1008 instead, in the meantime?
  • peterpan
  • peterpan
11 Nov 2025 20:29
Replied by peterpan on topic EtherCAT servo homing

EtherCAT servo homing

Category: EtherCAT

My drive have several homing method built in, and I recently solved to change the drive state druring the LCNC start, so I can initialize the drive to HM mode first, than CNP mode.

How?
  • Masiwood123
  • Masiwood123's Avatar
11 Nov 2025 20:25 - 11 Nov 2025 20:26
  • endian
  • endian's Avatar
11 Nov 2025 20:18
Replied by endian on topic Ethercat HAL driver

Ethercat HAL driver

Category: EtherCAT

Translate it as complex . Import it as s32 or u32.. Then create simple component to cut it a pieces... Simple and effective 
  • Masiwood123
  • Masiwood123's Avatar
11 Nov 2025 20:14 - 11 Nov 2025 20:24
  • Masiwood123
  • Masiwood123's Avatar
11 Nov 2025 20:12
Replied by Masiwood123 on topic beta bulleri for retrofit?

beta bulleri for retrofit?

Category: CNC Machines




watch both videos, I think the following is motor tuning, connecting the home switch, and again I have a problem with the keyboard, the velocity changes when jogging, I need to find Tommylight's post on how to solve it. thanks:)
  • DemonClaW
  • DemonClaW
11 Nov 2025 19:16 - 15 Nov 2025 07:50

Beckhoff Problem with Communication (TwinCAT, LinuxCNC)

Category: EtherCAT

Hey Guys,some of you know so much about this Topic so I hope I can find someone in the mood to help me.Im trying to make a CNC 3-Axis on Raspberry PI5 and Beckhoff, the problem is that im completly new in this topic and try to learn as much as possible but i got already stuck in the beginning. EtherCAT works fine and i got the "Koppler" and Cards but if im trying to get them into LinuxCNC like some videos teach the Programm wont start anymore

If i start i get the message: Failed to register PDO entry: No such file or directory
LCEC: master 0 PDO enty registration failed

A friend and myself checked the code 10x, and it seems that the problem starts before. I cant get the EK1100 connected to TwinCat or CodeSYS, too. Whats kind of weird to me because as i said if I try it with the "ethercat slaves" command, it knows The Ek1100 and all Cards


Thanks for everybody who can help me with this and invests some of his time for me
  • zz912
  • zz912's Avatar
11 Nov 2025 18:58
Replied by zz912 on topic Compile files in /linuxcnc/lib/

Compile files in /linuxcnc/lib/

Category: General LinuxCNC Questions

You probably don't need to compile the gtk_little_probe.py file.
Python is an interpreted language, so often you just need to make the edits and run the code.


It is true, but not in LCNC.


If I modify this file:
/home/zdenek/linuxcnc/linuxcnc-zz912/src/emc/usr_intf/gmoccapy/gmoccapy.py

It returns:
zdenek@cnc:~/linuxcnc/linuxcnc-zz912/src$ make
Reading 203/203 dependency files
Done reading dependencies
Reading 274/274 realtime dependency files
Done reading realtime dependencies
make: Vstupuje se do adresáře „/home/zdenek/linuxcnc/linuxcnc-zz912/src“
Syntax checking python script gmoccapy
Copying python script gmoccapy
You now need to run 'sudo make setuid' in order to run in place with access to hardware.
make: Opouští se adresář „/home/zdenek/linuxcnc/linuxcnc-zz912/src“

The most important sentence is:
Copying python script gmoccapy

Id dont know why and where, but it works.   
gmoccapy.py is in /src/ folder and it works.

I placed the wrong file here, I meant:
/linuxcnc/lib/python/gladevcp/builtin-panels/gtk_verser_probe/gtk_verser_probe.py
You can try modify it, but noting happens.
MAKE doesnt see it.


 
  • Hakan
  • Hakan
11 Nov 2025 18:30
Replied by Hakan on topic Ethercat HAL driver

Ethercat HAL driver

Category: EtherCAT

The array data types are not implemented in linuxcnc-ethercat.
Not 100% sure about IgH Ethercat master.
 
  • Masiwood123
  • Masiwood123's Avatar
11 Nov 2025 18:15
Replied by Masiwood123 on topic beta bulleri for retrofit?

beta bulleri for retrofit?

Category: CNC Machines

i will make short video what is all about that problem later.
  • Hakan
  • Hakan
11 Nov 2025 18:14 - 11 Nov 2025 18:16
Replied by Hakan on topic Trouble with Cia402 drive configuration

Trouble with Cia402 drive configuration

Category: EtherCAT

The following error can be large due to physical reasons, such as the axle sticking, tool breakage, etc.
With a good FERROR setting, the machine stops with a warning instead of destroying all sorts of things.
That's what you want. When the servos are working well, you should tighten the FERROR values ​​to get that protection.

Normally, values ​​are specified in the INI file.
With Ethercat it isn't so stream-lined yet, some values are set directly in the hal file like the pos-scale.
You can do it yourself, but it often introduces one more level of complexity when one just wants the machine to work.
In the ini file create a [ETHERCAT] section like below
[ETHERCAT]
CIA402_POS_SCALE_X = 200.0
and more
and use it in the hal file
setp cia402.0.pos-scale [ETHERCAT]CIA402_POS_SCALE_X

Optional.

I am not the right person to elaborate on ethercat homing.
I use linuxcnc's homing variant with switches in the traditional way.
Many people have used ethercat homing, search the forum, or maybe someone chimes in.

There are 3-4 lines mentioning homing in the cia402 documentation github.com/dbraun1981/hal-cia402
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