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  • T_D
  • T_D
31 Mar 2026 17:20

Hilfe bei Retrofit – Spindel ruckelt & Mesa-Konfiguration

Category: General LinuxCNC Questions

Manche Sachen muss ich noch machen Bsp: Beleuchtung des Bedienfeldes , dies sind alle Ausgänge der Mesa 7i73
  • T_D
  • T_D
31 Mar 2026 17:18

Hilfe bei Retrofit – Spindel ruckelt & Mesa-Konfiguration

Category: General LinuxCNC Questions

Moin in die Runde,ich bin gerade dabei, meine Maho 500 W4 zu retrofiten und habe schon einiges geschafft, stehe aber bei ein paar Punkten auf dem Schlauch. Vielleicht kann mir ja hier jemand weiterhelfen oder mal über meine Konfiguration schauen.Bisher erledigt:
  • PID-Tuning der Achsen gemacht
  • KSS-Pumpe lässt sich ansteuern
  • Werkzeugwechsel funktioniert
  • Bedienfeld läuft soweit
Hardware:
  • Achsen: über Indramat 3TRM2 mit analogen ±10 V Signalen
  • Spindel: über Indramat 6TKR, ebenfalls analog ±10 V
  • Mesa-Karten:
    • 7i97t
    • 7i74, daran hängt 7i84U
    • 7i73 fürs Bedienpanel
Meine Fragen / Probleme:
  1. Spindel:
    • Ich habe versucht, die Spindel über Tipps von ChatGPT und verschiedenen Forenbeiträgen sauber einzustellen. Ich habe eine 2-Gang-Schaltung (bzw. 3, wenn man Neutral mitzählt), wie es auch User Dowerna in seiner Konfiguration gemacht hat.
    • Problem: Die Spindel dreht zwar, aber es läuft trotzdem nicht vernünftig – sie ruckelt beim Drehen und klingt alles andere als flüssig. Ich weiß nicht, wie ich das noch sauber hinbekommen soll.
  2. Mesa-Konfiguration:
    • Ich verstehe nicht ganz, warum hier PWM-Gen-Pins genutzt werden und nicht die Analogen-Outs, obwohl die Mesa 7i97t 6 analoge Outputs hat.
  3. Konfigurations-Check:
    • Kann mal jemand über meine Konfiguration schauen und mir sagen, ob das so passt oder ob manche Sachen besser gemacht werden könnten?
    • Beispiel: Ich habe die MPG.hal nach meinem Wissen angepasst, die funktioniert bisher sehr gut, aber vielleicht gibt es noch Optimierungspotenzial.
Freue mich über jeden Tipp oder Hinweis! Danke schon mal vorab.

Englisch below:
 Hey everyone,I’m currently retrofitting my Maho 500 W4 and have made good progress, but I’ve hit a few points where I’m stuck. Maybe someone here can help or take a look at my configuration.What I’ve done so far:
  • Completed PID tuning for the axes
  • CNC pump (KSS) can be controlled
  • Tool change works
  • Control panel is running fine
Hardware:
  • Axes: controlled via Indramat 3TRM2 with analog ±10 V signals
  • Spindle: controlled via Indramat 6TKR, also analog ±10 V
  • Mesa cards:
    • 7i97t
    • 7i74, with 7i84U connected
    • 7i73 for the control panel
My questions / issues:
  1. Spindle:
    • I’ve tried setting up the spindle using tips from ChatGPT and various forum posts. I have a 2-speed gear (or 3 if you count neutral), similar to the configuration from user Dowerna.
    • Problem: The spindle spins, but it’s still not running smoothly – it rubs/jerks while turning and doesn’t sound or feel fluid. I’m not sure how to fix it properly.
  2. Mesa configuration:
    • I don’t quite understand why the PWM-Gen pins are being used for the spindle instead of the analog outputs, even though the Mesa 7i97t has 6 analog outputs.
  3. Configuration check:
    • Can someone take a look at my configuration and let me know if it’s set up correctly, or if some things could be done better?
    • Example: I’ve adapted the MPG.hal as best I could, it works fine so far, but there might still be room for improvement.
I’d really appreciate any tips or advice! Thanks in advance.My configuration is linked below.
  • spumco
  • spumco
31 Mar 2026 16:14
Need help with Bash M-code was created by spumco

Need help with Bash M-code

Category: General LinuxCNC Questions

Working on a switchable kinematics for my lathe, using the millturn example on GH.

(more here:  forum.linuxcnc.org/10-advanced-configura...r-than-x-axis#344888 )

One part of the switchkins process are a pair of M-codes: M128 and M129.  I gather these are used to change the axis max/min limits when the respective joints are swapped.

Problem is I don't understand the Bash language/terms/syntax well enough to make sure I'm modifying it appropriately for my config.

Here's the full M128:
Warning: Spoiler!


Question(s):

1.  Do I need to change (INI_FILE_NAME) to my particular ini file name, or is this some sort of 'points to the configuration's INI file regardless of name' programming thing?

2.  Under #RESTORE, there is the foreach | $coords... part.
- Does this call, or otherwise ensure, everything below applies to all values after set coords "x y z" at the top?

- Does set L [string toupper $l] somehow change the lowercase "x y z" to upper-case for use in the ::AXIS_[set L]... part?

- What is "catch"?

3.  Could this have been written more simply?
like: hal setp ini.x.min_limit [set ::AXIS_X(MIN_LIMIT)]

and repeated for desired axes?  With no "set coords" or "foreach" or "set L" needed?

Bonus Question:
- Other than to confuse non-programmers, what purpose does this complication serve?  Is the intent to make it so the end-user only has to change the coords "n n n" values and everything still works?
  • Todd Zuercher
  • Todd Zuercher's Avatar
31 Mar 2026 11:15
Replied by Todd Zuercher on topic Homing To Index Following Error

Homing To Index Following Error

Category: Advanced Configuration

Here's another Halshow screen shot showing the index input.
 
  • Todd Zuercher
  • Todd Zuercher's Avatar
31 Mar 2026 10:24
Replied by Todd Zuercher on topic Homing To Index Following Error

Homing To Index Following Error

Category: Advanced Configuration

Here's a Halscope shot of it.
 
  • Todd Zuercher
  • Todd Zuercher's Avatar
31 Mar 2026 10:20 - 31 Mar 2026 10:22
Homing To Index Following Error was created by Todd Zuercher

Homing To Index Following Error

Category: Advanced Configuration

I have a 4 axis router with step/dir servos using a 7i76EU+7i85 to command the servos and read the encoder feedback.  I have the servos reasonably tuned running closed loop.  But I'm seeing a following error spike on homing to index for the W axis (XYZW) on the first attempt at homing the machine after power up.  After the initial encoder position reset on the homing index it will home fine the 2nd try and works after that. If the machine was parked at the W-zero location when Linuxcnc is turned off and started it does not do the following error.  For some reason it seems like Linuxcnc is not ignoring the F-eror on the encoder index reset for the W-axis like it should.  Any Ideas how to fix this?

Here are my main hal and ini config files.

File Attachment:

File Name: TwinCNC.hal
File Size:22 KB
 

File Attachment:

File Name: TwinCNC.ini
File Size:6 KB
  • Ameone
  • Ameone
31 Mar 2026 08:25
Replied by Ameone on topic Bitfile for rcservo - MESA 7i95t

Bitfile for rcservo - MESA 7i95t

Category: Driver Boards

Thanks it should work fine with the 2 RCPWMs and the sserial on TB4
  • Marcos DC
  • Marcos DC's Avatar
31 Mar 2026 08:11

CiA402 framework for LinuxCNC (follow-up: runnable + simulation + easier debuggi

Category: EtherCAT

Small update:

I aligned all docs with the actual runtime behavior and added a practical diag.sh guide.

Quick start is now simulation-first and profiles are clarified as declarative contracts.

Some parts were previously implicit (in my head), so this pass was mainly about making those assumptions explicit and removing ambiguity.

No changes in runtime/semantics — just making it easier to use and debug.

Now waiting for real hardware feedback.
  • ts
  • ts
31 Mar 2026 07:55 - 31 Mar 2026 07:57

Ext hard buttons duplicate Power_PB and Reset

Category: Flex GUI

Ok, it is reset of latched estop.
And how to realise reset button for external errors, for example drives errors or external devises (torch head or edm generator)?

Also i couldnt startup halui component, but somehow flexgui send power on signal to drives , i want to know how to use the same logic and send signal the same way
  • Hakan
  • Hakan
31 Mar 2026 07:40
Replied by Hakan on topic Ethercat random jitter fix

Ethercat random jitter fix

Category: EtherCAT

It doesn't sound pll-related if you get clunks when idle/standing still.
You can try and record this. If the clunks are from commanded position disruptions
you should see it as disruptions in position feedback.
You can record long sequences to try to catch it. Use the "sampler" hal component.
Possibly add a ddt component to take the derivative of the position feedback.
It will show some spike/peak when a clunk happens, if there is something with the position.
Plot the data, and evaluate.
 
  • bill.anderson
  • bill.anderson
31 Mar 2026 05:56

Can't install Linux 2.9.8 hybrid alongside Windows 11.1

Category: Installing LinuxCNC

I know Windows 11.1 uses a GPT partitioning. Everything I've read indicates that if I used Rufus to make the USB live stick on a GPT partition that I could do a dual boot install. I turned off bitlocker on the Windows files, turned off secure boot, turned off fastboot under the power settings, and shrank the windows partition to give me 50GB for the install. The install asked me for a missing file related to a sound card and didn't recognize my network (wifi). I selected manual partitioning and did not see any of the partitions other than the USB stick. The live version booted and ran fine. Running gparted showed the EFI partition with an error triangle alongside. I suspect this has something to do with GPT but I can't figure out what.
I'm trying to install this on an HP Laptop. Any thoughts?
  • Marcos DC
  • Marcos DC's Avatar
31 Mar 2026 05:18

CiA402 framework for LinuxCNC (follow-up: runnable + simulation + easier debuggi

Category: EtherCAT

Nice, thanks for testing it

And yeah, honestly you did a better job than the docs there
At that moment they were a bit messy and could easily lead in the wrong direction.

I just went through and cleaned them up properly (quick start is now simulation-first, no profile/topology needed, and observability is aligned with what diag actually shows).

So what you ran is basically the intended path, just not well explained before.

If you get time later to try it on real hardware, that would be really interesting to hear about.

Appreciate you taking the time to try it.
  • TAKUYA
  • TAKUYA
31 Mar 2026 04:33
Replied by TAKUYA on topic Ethercat random jitter fix

Ethercat random jitter fix

Category: EtherCAT

The config was previously working just fine. I dont know what changed that caused this.

Ill check dmesg again when im home.
As for the working state after the DRO populates... Its hard to say. I can definately move every axis just fine, but theres a 50% chance that clunks occur. Sometimes more clunks, sometimes less clunks. Sometimes they even appear mid-cycle which is a no-go.

ive swapped out all the ethernet cables now, re-imaged my lcnc host, even used a new host without any success.
  • Lcvette
  • Lcvette's Avatar
31 Mar 2026 03:00

30 Second timeout before opening and E-Stop button not clicking...

Category: QtPyVCP

first thign i see is you ar emissing the postgui hal file that is required. you need to uncomment the ini for that line and copy over the probe basic post guiio hal file as is stated in the docs.

it looks like you may have missed a few steps, go beack through the machine config section in the docs really carefully and make sure you have done all of the steps accordingly and i think you will find things will work as expected.

kcjengr.github.io/probe_basic/machine_config.html
  • NWE
  • NWE's Avatar
31 Mar 2026 01:06
Replied by NWE on topic LinuxCNC S-Curve Accelerations

LinuxCNC S-Curve Accelerations

Category: General LinuxCNC Questions

Go easy on me. I tried to read through this whole thread, but there's a lot to digest. 

--snip--

I know it's not a "real" control, but it's pretty amazing they could get all that to work (along with g-code interpreter, etc) on an 8 bit AVR microcontroller. 

 

Just now I discovered:
GRBLHAL = 32 bit
GRBL = 8 bit
Thanks for bringing this up. A long time ago I read all about GRBL 8-bit and sort of gave up on it. Now I notice the main project is 32 bit. Now that seems worthwhile. Cheap 32-bit MCUs today pack some punch.

That said, I'll leave the S-curve talk for the pros.
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