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  • PCW
  • PCW's Avatar
23 Nov 2025 15:45
Replied by PCW on topic Chinese Mesa 7I92 from aliexpress NEW

Chinese Mesa 7I92 from aliexpress NEW

Category: Driver Boards

Changing the IRQ coalesce settings does improve the ping times noticeably on Intel hardware,
but your 4-5 ms  peak ping time indicates other issues, likely related to power management.

My system with Intel MAC and default IRQ coalesce settings:

PING 10.10.10.10 (10.10.10.10) 56(84) bytes of data.
64 bytes from 10.10.10.10: icmp_seq=1 ttl=64 time=0.316 ms
64 bytes from 10.10.10.10: icmp_seq=2 ttl=64 time=0.250 ms
64 bytes from 10.10.10.10: icmp_seq=3 ttl=64 time=0.251 ms
64 bytes from 10.10.10.10: icmp_seq=4 ttl=64 time=0.250 ms

Same system with IRQ coalecing off:

PING 10.10.10.10 (10.10.10.10) 56(84) bytes of data.
64 bytes from 10.10.10.10: icmp_seq=1 ttl=64 time=0.116 ms
64 bytes from 10.10.10.10: icmp_seq=2 ttl=64 time=0.106 ms
64 bytes from 10.10.10.10: icmp_seq=3 ttl=64 time=0.107 ms
64 bytes from 10.10.10.10: icmp_seq=4 ttl=64 time=0.106 ms



Have you disabled all power management in the system BIOS and grub?

Have you set isolcpus to the last CPU in the grub file?

Do you have idle=poll in the grub file as well?

(These are basic latency reducing steps for any LinuxCNC host)

linuxcnc.org/docs/html/install/latency-test.html
 
  • kor
  • kor
23 Nov 2025 15:36
First Tests with ethercat was created by kor

First Tests with ethercat

Category: EtherCAT

I finally insalled my ethercat master. and when running "ethercat slaves"
I see my beckhoff devices:
bf20@bf20:~$ ethercat slaves
0  0:0  PREOP  +  EK1100 EtherCAT-Koppler (2A E-Bus)
1  0:1  PREOP  +  EL1014 4K. Dig. Eingang 24V, 10�s
2  0:2  PREOP  +  EL2004 4K. Dig. Ausgang 24V, 0.5A
3  0:3  PREOP  +  EL3102 2K. Ana. Eingang +/-10V, Diff.

So next I created a standard axis-sym conf
I modified the axis.ini by adding a new halfile:
HALFILE = ethercat.hal

This is my ethercat.hal:
# EtherCat
loadusr -W lcec_conf /home/bf20/linuxcnc/configs/sim.axis/ethercat-conf.xml
loadrt lcec add lcec.read-all servo-thread

add lcec.write-all servo-thread
net mon halui.machine.on lcec.0.EL1014.din-2
net mon halui.machine.off lcec.0.EL1014.din-3

and here is my xml file:
<masters>
    <master idx="0" appTimePeriod="1000000" refClockSyncCycles="1">
    
        <slave idx=0" type="EK1100" name="EK1100"/>
        <slave idx=1" type="EL1014" name="EL1014"/>
        <slave idx=2" type="EL2004" name="EL2004"/>
        <slave idx=3" type="EL3102" name="EL3102"/>
    </master>
</masters>

when starting linuxcnc I get this error message:
Note: Using POSIX realtime
lcec_conf: ERROR: Parse error at line 4: not well-formed (invalid token)
./ethercat.hal:3: waitpid failed lcec_conf lcec_conf
./ethercat.hal:3: lcec_conf exited without becoming ready
6791
Stopping realtime threads
Unloading hal components
Note: Using POSIX realtime
which does not really help me to figure out what is wrong. My guess is that I did something wrong in the xml, but I can not figure out what.

Thanks for your help.
  • andrax
  • andrax
23 Nov 2025 14:32
Replied by andrax on topic StepperOnline A6 Servo

StepperOnline A6 Servo

Category: EtherCAT

Hi,
I am also working with the A6 servos.
I purchased the Stepperonline 750W sto for testing purposes. I got everything up and running without any problems.
But I have a few questions:
How can I adjust the electronic gear?
Is there a function in the .ini file or do I have to set this in the servo driver?
My axis has a pitch of 50:1 and the gearbox in front of it is 6:1.

Which signals are used in the cia402_homecomp?
Are the home switch and the Z-index of the servo used here, or just the home switch

regards
  • Aciera
  • Aciera's Avatar
23 Nov 2025 14:14 - 23 Nov 2025 14:35
Replied by Aciera on topic stacking mdi commands in 2.9.7

stacking mdi commands in 2.9.7

Category: AXIS

Since this is a python file you could modify /bin/axis to fix this (you would need sudo rights to do this on a deb install)

I'll file an issue on github, thanks for reporting
github.com/LinuxCNC/linuxcnc/issues/3641
  • Aciera
  • Aciera's Avatar
23 Nov 2025 14:07
Replied by Aciera on topic stacking mdi commands in 2.9.7

stacking mdi commands in 2.9.7

Category: AXIS

I'm a bit puzzled a this was supposedly fixed by
github.com/LinuxCNC/linuxcnc/commit/7852...1a3b13ca333d4e6d874f

removing this line #982 from 'axis.py':
    if running(): return 0


yet the line seems to be back in current 2.9:
github.com/LinuxCNC/linuxcnc/commit/7852...1a3b13ca333d4e6d874f
  • Sekai
  • Sekai
23 Nov 2025 13:18
Replied by Sekai on topic Chinese Mesa 7I92 from aliexpress NEW

Chinese Mesa 7I92 from aliexpress NEW

Category: Driver Boards

you mean :
sudo ethtool -C enp0s25 rx-usecs 0
I did that, it does not change anything.
  • abs32
  • abs32
23 Nov 2025 12:53
Replied by abs32 on topic How to fix "Queue is not empty after probing"

How to fix "Queue is not empty after probing"

Category: General LinuxCNC Questions

In the implementation of the version of the respected comrade. AkkiSan from forum.linuxcnc.org/38-general-linuxcnc-q...bing?start=10#333578

there is a typo that emerged during compilation -
instead of -
esleep(0.010);

necessary -
usleep(0.010);
  • unknown
  • unknown
23 Nov 2025 12:52
Replied by unknown on topic stacking mdi commands in 2.9.7

stacking mdi commands in 2.9.7

Category: AXIS

I don't think it's a "bug", there does seem to have been some debate in the forum and GitHub as to the "correct" behaviour.
github.com/LinuxCNC/linuxcnc/issues/2956

github.com/LinuxCNC/linuxcnc/issues/3464
  • Mr. Mass
  • Mr. Mass's Avatar
23 Nov 2025 12:36
Replied by Mr. Mass on topic qtdragon mod

qtdragon mod

Category: Qtvcp

Thanks for the explanation, it really helped. I made indicators for e-stop, on/off, manual mode, and MDI. There was a slight issue with auto mode. I wanted to make indicators for auto mode, running programs, and pause. This is the only way I could do it:
STATUS.connect("interp-run",lambda w: self.set_auto_led()) 
STATUS.connect("interp-paused",lambda w: self.set_auto_led())
STATUS.connect("interp-idle",lambda w: self.set_auto_led())
STATUS.connect("interp-waiting",lambda w: self.set_auto_led())

def set_auto_led(self):
    c = ""
    if STATUS.is_auto_running() and STATUS.is_auto_mode() and not STATUS.is_auto_paused():
        c = "blue"
        self.set_led_color(c)
    elif STATUS.is_auto_paused() and STATUS.is_auto_mode():
        c = "aquamarine"
        self.set_led_color(c)
    elif STATUS.is_auto_mode():
        c = "green_dark"
        self.set_led_color(c)

def set_led_color(self, color):        
    print(color, self.LED_color[color])
    self.h["led-red"] = self.LED_color[color][0]
    self.h["led-green"] = self.LED_color[color][1]
    self.h["led-blue"] =  self.LED_color[color][2]

Is this ok, or is there a more elegant way?
  • rodw
  • rodw's Avatar
23 Nov 2025 12:32
Replied by rodw on topic PoKeys57CNC HAL component

PoKeys57CNC HAL component

Category: HAL

I don't think modern drives loose torque with microstepping. I ran 25x microstepping on my machines.....But yes I was considering how much microstepping I could use. Maybe 8x. Adding a belt reduction is often the wise choice.

Yes, I found the specs in the manual. Seems like you could increase velocities
  • rodw
  • rodw's Avatar
23 Nov 2025 12:25
Replied by rodw on topic Chinese Mesa 7I92 from aliexpress NEW

Chinese Mesa 7I92 from aliexpress NEW

Category: Driver Boards

i tried with the ethtool but no change
 
after reading some more i disable AMT setting from bios but the value remain the same

Please fix the coalscing setting and report back also energy efficient Ethernet could impact from time to time if enabled.. 
  • rodw
  • rodw's Avatar
23 Nov 2025 12:22
Replied by rodw on topic CNC AXIS IN PARKING MODE

CNC AXIS IN PARKING MODE

Category: Advanced Configuration

Sorry, I based he code on my experience but now I see your situation is different. You could modify the code to achieve what you desire. Just swap things around.
  • radom
  • radom
23 Nov 2025 11:37 - 23 Nov 2025 11:37
stacking mdi commands in 2.9.7 was created by radom

stacking mdi commands in 2.9.7

Category: AXIS

I made fresh install from 2.9.4 ISO then update & upgrade to 2.9.7 and you can add new mdi command only after the previous one has been executed
I though this bug was already fixed, can anyone tell me is this only problem with my config 
thanks
 
  • rodw
  • rodw's Avatar
23 Nov 2025 11:03
Replied by rodw on topic How to fix "Queue is not empty after probing"

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.

The difference is that  qtplasmac does not use gcode to control the torch height and it does not use Gcode to probe for the surface. Any gcode affecting the Z axis are ignored as they are filtered out when the file is opened.\. As I said that is al done with external offsets. That is, external to the motion controller. Please watch my video overview wnad read the comprehensive explanation in the comments. 
  • michaeln
  • michaeln
23 Nov 2025 11:02 - 23 Nov 2025 11:04
Replied by michaeln on topic linuxcnc_2.9.4-amd64.hybrid.iso cheksum?

linuxcnc_2.9.4-amd64.hybrid.iso cheksum?

Category: General LinuxCNC Questions

Hello,
your problem is not the amdgpu.
That is the "normal" raspi-firmware-bug. Please use: sudo dpkg -P raspi-firmware
I think the amdgpu error message you can ignore. I have the same on my old amd-test-pc

Hi all, i tested again today with a fresh download of  2.9.4 from the main page. And now i am stuck as all the other ones are at, the missing "amdpgu fault". 
Was there a solution on that fault ?, i cant decipher if there was one, on all the other forum posts with that fault. 
ibb.co/G4FrwL3t

If there is not a solution i will try the "mint" Tommylight uploaded :)

 

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