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  • mediocre_chloride
  • mediocre_chloride's Avatar
15 Aug 2026 13:59 - 15 Aug 2026 14:00
Replied by mediocre_chloride on topic radiusendpunkt nicht gefunden

radiusendpunkt nicht gefunden

Category: General LinuxCNC Questions

Das sieht nach einem Programmierproblem aus. Ist der Radiusmittelpunkt Absolut oder relativ? ich sehe in deinem Programmkopf G91.1 (relativ). Wechsle dies mal auf G90.1 und versuch es nochmal.
PS: Das Programm im Anhang würde helfen
  • JThom
  • JThom
15 Aug 2026 13:56
Replied by JThom on topic Colchester 4000L retrofit

Colchester 4000L retrofit

Category: Turning

It has a single MPG wheel mounted on the door/control. I might re-use it, but since most of the rest of the existing controls are going away (many worn out keys), I think a detachable pendant with some buttons might be nice for setting up longer work.

More importantly for anyone interested, I think I was wrong on the encoder/commutation stuff. After further investigation, it seems ABZ encoder outputs are available from the VCU and I don't need to worry about commutation, although there is a different wrinkle that's escaping me right now.

A couple of days after I posted about this, I got commandeered to look at a similar vintage milling machine for a repair, or similar refit. A week into that, I had to move on to a more urgent broken production tool. It's been fun. I'll update the thread with my lathe progress, success or failure when I get back to it, but it could be a while.

Having been using chat-bot assistance, I'm mindful that much of it's info on the topic is scraped and recombined from these very forums, so it's important to give back real accurate information about a project's actual viability and methodology when I can.
  • mediocre_chloride
  • mediocre_chloride's Avatar
15 Aug 2026 13:41
El2521 Configuration was created by mediocre_chloride

El2521 Configuration

Category: EtherCAT

Hi 
I used Beckhoff EL2521 recently to Build a 2 Axis Configuration. Had a bit of a Journey until i managed to configure the EL2521's correctly.
Wanted to share this here as kind of "Documentation", as it may help people having the same issue

My Config:
gitlab.com/Lolipop333/linuxcnc_ec_plasma...1cff00b5afe3ec75813/

Explanation Video:
  • skunkworks
  • skunkworks
15 Aug 2026 13:27
Replied by skunkworks on topic spindle speed pick-up using the bull gear

spindle speed pick-up using the bull gear

Category: General LinuxCNC Questions

We used gear tooth sensors.... for rigid tapping you would need 3 - a,b and z

Jon from pico systems did the same thing...

pico-systems.com/bridge_spindle.html

Good writeup..

sam
  • mediocre_chloride
  • mediocre_chloride's Avatar
15 Aug 2026 13:27 - 15 Aug 2026 13:32
Replied by mediocre_chloride on topic LinuxCNC 2.9 / Debian 12 RT – EtherCAT Master Setup für 750W Servo gesucht

LinuxCNC 2.9 / Debian 12 RT – EtherCAT Master Setup für 750W Servo gesucht

Category: Deutsch

Hi
Danke für den Thread.
Mit A6 Drives hatte ich auch das Problem, dass die Slave manchmal nicht richtig startet, ein restart des Pi's hat das gelöst. Später habe ich eine bessere Lösung gefunden: Seite 241 im Manual, Parameter C13.05: EtherCAT synchronization mode setting.

Warning: Spoiler!


Ich gehe davon aus das der Jitter vom Hostcontroller mehr als ein uS ist (gemessen auf rpi5 wurde um die 6000ns jitter auf dem servo thread). Deshalb habe ich diesen Parameter auf 2 gesetzt. jetzt starten Sie alle und brauchen auch nicht mehr ewigs. nur wenn die Drives laufen, linuxcnc geschlossen wird und wieder geöffnet habe ich einen "Ethercat synchro loss error" aber kurzes Power-cyclen über den Notaus dann gehts wieder
  • tuxcnc
  • tuxcnc
15 Aug 2026 13:07
Replied by tuxcnc on topic run Linuxcnc on xenomai with EVL(the realtime core)

run Linuxcnc on xenomai with EVL(the realtime core)

Category: General LinuxCNC Questions 

[url]https://github.com/hdiethelm/xenomai4-linuxcnc[/url]

There are many errors in scripts.
At last I compilled kernel, that not boot up...
For me wasted time. 
  • unicorn
  • unicorn
15 Aug 2026 12:02
can't issue MDI command when not homed was created by unicorn

can't issue MDI command when not homed

Category: General LinuxCNC Questions

position: relative actual
new here, I use live system, I got that error when I want to run some G codes. How to configure?
  • karlhe
  • karlhe
15 Aug 2026 09:58 - 15 Aug 2026 16:15
radiusendpunkt nicht gefunden was created by karlhe

radiusendpunkt nicht gefunden

Category: General LinuxCNC Questions

Hallo.
programm wird nicht eingelesen, radiusendpunkt wird nicht gefunden.
Programm erzeugt mit fusion360.
fehlermeldung im anhang..

karlhe 
  • dm17ry
  • dm17ry's Avatar
15 Aug 2026 06:41
Replied by dm17ry on topic Okuma encoders and drives

Okuma encoders and drives

Category: General LinuxCNC Questions

i've got a few communication logs from a logic analyzer and had a quick look at it. was able to decode it: 10 Mbit/s, NRZ(L), 4b6b, LSB first:
..1.11 0
..11.1 1
..111. 2
.1..11 3
.1.11. 4
.11..1 5
.11.1. 6
.111.. 7
1...11 8
1..1.1 9
1..11. a
1.1..1 b
1.11.. c
11...1 d
11..1. e
11.1.. f

but haven't advanced much beyond looking at the data.. don't have the hardware. packets look like this:
ff a1 .. aa 57 66 
01 74 .. .. 02 .. .. .. 02 .. .. .. 02 .. .. .. 02 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 45 39 
01 50 .. 60 e8 74 01 .. .. .. .. 02 bf 04 .. .. .. .. .. .. .. .. .. .. .. .. .. 02 bf 03 .. .. .. .. 83 ca 
01 0c .. e3 08 34 02 .. .. .. .. f7 0b 3f .. .. .. .. .. .. .. .. .. .. .. .. .. f7 0b 2f 80 .. .. .. b3 be 
01 04 .. e3 08 34 02 .. .. .. 01 73 95 d5 .. .. .. .. .. .. .. .. .. .. .. .. 01 73 95 b6 80 .. .. .. cd e7 
01 14 04 e0 08 28 .. 01 .. .. .. 01 bf 6c .. .. .. .. .. .. .. .. .. .. .. .. ff ff 69 fe .. .. .. .. 38 d6 
.. 74 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. bb 18 
.. 50 01 02 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. d5 a8 
.. 0c 01 02 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 01 .. 84 08 .. .. .. .. .. .. .. .. 23 e5 
.. 04 01 02 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 01 .. 84 08 .. .. .. .. .. .. .. .. 19 f6 
.. 14 01 02 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 98 38 
ff a1 .. ab de 77 
01 74 .. .. 02 .. .. .. 02 .. .. .. 02 .. .. .. 02 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 45 39 
01 50 .. 60 e8 74 01 .. .. .. .. 02 bf 04 .. .. .. .. .. .. .. .. .. .. .. .. .. 02 bf 03 .. .. .. .. 83 ca 
01 0c .. e3 08 34 02 .. .. .. .. f7 0b 3f .. .. .. .. .. .. .. .. .. .. .. .. .. f7 0b 2f 80 .. .. .. b3 be 
01 04 .. e3 08 34 02 .. .. .. 01 73 95 d5 .. .. .. .. .. .. .. .. .. .. .. .. 01 73 95 b6 80 .. .. .. cd e7 
01 14 04 e0 08 28 .. 01 .. .. .. 01 bf 6c .. .. .. .. .. .. .. .. .. .. .. .. ff ff 69 fe .. .. .. .. 38 d6 
.. 74 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. bb 18 
.. 50 01 03 .. .. .. .. .. .. .. .. .. .. .. .. .. .. 01 .. 44 04 17 b3 33 04 .. .. .. .. .. .. .. .. df 18 
.. 0c 01 03 .. .. 01 .. 86 1b 03 f3 e4 58 4d .. ff ff 01 .. 44 15 .. .. .. .. .. .. .. .. .. .. .. .. b5 07 
.. 04 01 03 .. .. 01 .. 86 1b 03 f6 ac f1 72 .. ff ff 01 .. 44 15 .. .. .. .. .. .. .. .. .. .. .. .. f6 9b 
.. 14 01 03 .. .. .. .. .. .. .. .. .. .. .. .. .. .. 01 .. 44 06 .. .. .. .. 01 .. 44 15 .. .. .. .. 52 df 
ff a1 .. ac 61 03 
01 74 .. .. 02 .. .. .. 02 .. .. .. 02 .. .. .. 02 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 45 39 
01 50 .. 60 e8 74 01 .. .. .. .. 02 bf 04 .. .. .. .. .. .. .. .. .. .. .. .. .. 02 bf 03 .. .. .. .. 83 ca 
01 0c .. e3 08 34 02 .. .. .. .. f7 0b 3f .. .. .. .. .. .. .. .. .. .. .. .. .. f7 0b 2f 80 .. .. .. b3 be 
01 04 .. e3 08 34 02 .. .. .. 01 73 95 d5 .. .. .. .. .. .. .. .. .. .. .. .. 01 73 95 b6 80 .. .. .. cd e7 
01 14 04 e0 08 28 .. 01 .. .. .. 01 bf 6c .. .. .. .. .. .. .. .. .. .. .. .. ff ff 69 fe .. .. .. .. 38 d6 
.. 74 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. bb 18 
.. 50 01 04 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 4f 26 
.. 0c 01 04 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 4c 83 
.. 04 01 04 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 76 90 
.. 14 01 04 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 02 b6 
 
  • viewsat
  • viewsat
15 Aug 2026 02:41
Replied by viewsat on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Category: Computers and Hardware

If this is a drive level issue, note that a 26C31 does not swing to 5Vand its output level is about 2 diode drops below 5V (3.6V) with a 5 mA load.I have experience using some MESA control cards and connecting drivers, so I shouldn't have any technical difficulties connecting motor drivers.  

I have experience using some MESA control cards and connecting drivers, so I shouldn't have any technical difficulties connecting motor drivers.
 
 
  • viewsat
  • viewsat
15 Aug 2026 02:23 - 18 Aug 2026 01:48
Replied by viewsat on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Category: Computers and Hardware

Meister, if you were in Taiwan, I would definitely buy one for you. This Riocore ICEBreaker V1.0e circuit board should be a 2026 product; I bought it on Taobao in China in June 2026. At the time, I asked the China seller about a DM542 zero-point positioning error, and the China seller tested it and got the same result. He recommended I discuss it on the Linux CNC forum.  
  • viewsat
  • viewsat
15 Aug 2026 02:06
Replied by viewsat on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Category: Computers and Hardware

If this is a drive level issue, note that a 26C31 does not swing to 5V
and its output level is about 2 diode drops below 5V (3.6V) with a 5 mA load.

I connected the motor driver using +5V and A-.
 
  • PCW
  • PCW's Avatar
14 Aug 2026 23:05
Replied by PCW on topic Frage zu 7I96?

Frage zu 7I96?

Category: Deutsch

All Mesa Ethernet cards support Auto–MDI-X so it should not matter.

That said, all testing is done with straight through cables.
 
  • Holzwurm56
  • Holzwurm56
14 Aug 2026 22:32
Replied by Holzwurm56 on topic Frage zu 7I96?

Frage zu 7I96?

Category: Deutsch

Hallo PCW,
danke für die Antwort.
Ist es wichtig ob man zum Anschluß der 7I96 ein Patchkabel oder ein Crossoverkabel nimmt?
MfG
Hans
  • hitchhiker
  • hitchhiker
14 Aug 2026 21:16
Replied by hitchhiker on topic PUMA 200 Robotarm and some Hal/INI issues

PUMA 200 Robotarm and some Hal/INI issues

Category: Advanced Configuration

Hey!

I am back on project.
I played a little bit with the arm.. adjust the backlash/teeth play and get now the correct scales for all joints.

In the next days i will machine a sharpie holder... then i will starting with first trails drawing on cardboard. I checked all movements in world mode.. x y z... and it looks good.. tomorrow i will test with a dial.

For my understanding:
The dh parameters doesnt changed... i must set the arm to different ready position over the homeoffset. Right?

Thanks
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