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  • soehlrich
  • soehlrich
08 Jan 2026 02:10
Replied by soehlrich on topic Qtdragon_hd Zero button not zeroing

Qtdragon_hd Zero button not zeroing

Category: General LinuxCNC Questions

Yes it does, if I jog the axis it will change. It doesnt seem to be realted as to how far I jog, the axis just has to move, even 0.1mm
  • grandixximo
  • grandixximo's Avatar
08 Jan 2026 00:30 - 08 Jan 2026 00:48
Replied by grandixximo on topic LinuxCNC S-Curve Accelerations

LinuxCNC S-Curve Accelerations

Category: General LinuxCNC Questions

The scurve is present now in linuxcnc master, download from GitHub and build, or use the latest .deb files

With many thanks to Grandixximo and 杨阳 we now have an experimental
S-curve / finite-jerk trajectory planner for testing.

For those that build from source just look for the new v2.10.0-pre1 tag.

Others can download debs from github for the next 90 days:
x86 / bookworm  github.com/LinuxCNC/linuxcnc/actions/run...artifacts/5056097663
x86 / trixie github.com/LinuxCNC/linuxcnc/actions/run...artifacts/5056161668
ARM64 / bookworm github.com/LinuxCNC/linuxcnc/actions/run...artifacts/5056139840
ARM64 / trixie github.com/LinuxCNC/linuxcnc/actions/run...artifacts/5056124080

Make no mistake, this is experimental, there are no guarantees that
these won't break your machines. The first user already hit the hard
stops when homing (too-low max jerk setting)
With the jerk setting it is probably best to start high and reduce, as
infinite jerk is closer to current behavior.

If you run these you are volunteering to be a guinea-pig.
magazine.punch.co.uk/image/I0000NOWOOdkXT_k
  • rodw
  • rodw's Avatar
07 Jan 2026 23:57
Replied by rodw on topic New and Working RTAI debs for 2.9

New and Working RTAI debs for 2.9

Category: Installing LinuxCNC

Life has got more complicated. With proper kernel tuning, latency can be better with Debian 13. I am in the process of publishing a second video about this on YouTube. Please refer to my channel. www.youtube.com/@MrRodW
The yet to be published video should be watched before the current one.
  • cmorley
  • cmorley
07 Jan 2026 23:50
Replied by cmorley on topic Qtdragon_hd Zero button not zeroing

Qtdragon_hd Zero button not zeroing

Category: General LinuxCNC Questions

If you zero again, does the small values stay the same?
  • soehlrich
  • soehlrich
07 Jan 2026 23:32
Replied by soehlrich on topic Qtdragon_hd Zero button not zeroing

Qtdragon_hd Zero button not zeroing

Category: General LinuxCNC Questions

  • cmorley
  • cmorley
07 Jan 2026 23:16
Replied by cmorley on topic Qtdragon_hd Zero button not zeroing

Qtdragon_hd Zero button not zeroing

Category: General LinuxCNC Questions

Rhe formatting of the message is screwing it up.
Just make a short new message with the images
  • soehlrich
  • soehlrich
07 Jan 2026 23:16
Replied by soehlrich on topic Qtdragon_hd Zero button not zeroing

Qtdragon_hd Zero button not zeroing

Category: General LinuxCNC Questions

 
  • soehlrich
  • soehlrich
07 Jan 2026 23:13
Replied by soehlrich on topic Qtdragon_hd Zero button not zeroing

Qtdragon_hd Zero button not zeroing

Category: General LinuxCNC Questions

Hi,

I can seem to add the attachments, both less than 1M. Click add image, I can then see it, and press insert.
  • cmorley
  • cmorley
07 Jan 2026 23:08
Replied by cmorley on topic Qtdragon_hd Zero button not zeroing

Qtdragon_hd Zero button not zeroing

Category: General LinuxCNC Questions

attachments didn't come though.
  • soehlrich
  • soehlrich
07 Jan 2026 22:20 - 07 Jan 2026 23:12
Qtdragon_hd Zero button not zeroing was created by soehlrich

Qtdragon_hd Zero button not zeroing

Category: General LinuxCNC Questions

 Hi,I have been using linxcnc 2.4 for quite some time and though it would be a good idea to upgrade to the latest qtdragon_hd version. I did a completely fresh install using LinuxCNC 2.9.8
Debian 13 Trixie PREEMPT-RT ISO

I am running a MESA 7176E board for the interface with step and direction ( using Teknic SDSK servos) so effectively open loop. The hal file is copied from my old configuration, so I know it worked. I have added any new items that were needed

I have managed to get everything working pretty much as before and axis all home correclty and the home co-ordinates are all set to 0. If I then jog the table to a position and press Zero on any of the Axis the G54 Cordinates are not zeroed. See attached pictures.

If I set a jog interval like 0.1mm then every jog increments the DRO by the correct amount and the DTI indicates the table move correct.Using the Offsets screen, if I set the G54 offset to the X axis position at shown for the G53 X axis then the G54 will indicate 0. If i then press Zero it goes to some small number.

Does anyone have any ideas ?

I have disabled all EOffsets.Any help great appreciated.

Thanks
  [attachment=73775]20260108_160616.jpg[/attachment]
 [attachment=73774]20260108_160046_2026-01-07.jpg[/attachment]
  • cnbbom
  • cnbbom
07 Jan 2026 21:46
Replied by cnbbom on topic New and Working RTAI debs for 2.9

New and Working RTAI debs for 2.9

Category: Installing LinuxCNC

Do you _need_ RTAI? What is your latency with preempt-rt?


 

I confess that RT version 2.92 worked well for me, even using LPT with around 25000 latency. However, when I saw Debian 13, I believed I could achieve the same result, but the latency is extremely high, reaching 150 on the same PC that had 25000 latency with Debian 12. That's when I tried RTAI and got these errors. I'm trying to find another PC following Tommylight's advice in an attempt to get some answers.
  • tommylight
  • tommylight's Avatar
07 Jan 2026 20:53 - 07 Jan 2026 20:55
Replied by tommylight on topic A new finite-jerk (S-curve) trajectory planner for testing.

A new finite-jerk (S-curve) trajectory planner for testing.

Category: LinuxCNC Announcements

Can you see: github.com/LinuxCNC/linuxcnc/actions/run...1121/job/59737821393 ?


Yes, this works.
-
Hovering over your links shows:
github.com/LinuxCNC/linuxcnc/actions/run...artifacts/5056097663
While opening them goes to
github.com/LinuxCNC/linuxcnc/suites/5379...artifacts/5056097663
None work, but removing some tailing does open correct sections for
github.com/LinuxCNC/linuxcnc/actions/runs/20798441121/
where the "artifacts" are listed but not clickable.
Edit
I am not logged in there, i do not have an account.
  • ihavenofish
  • ihavenofish
07 Jan 2026 20:20
Replied by ihavenofish on topic LinuxCNC S-Curve Accelerations

LinuxCNC S-Curve Accelerations

Category: General LinuxCNC Questions

O_o

o_O
  • andypugh
  • andypugh's Avatar
07 Jan 2026 19:41
Replied by andypugh on topic A new finite-jerk (S-curve) trajectory planner for testing.

A new finite-jerk (S-curve) trajectory planner for testing.

Category: LinuxCNC Announcements

They all work for me. I will have to try them at work tomorrow as the other-me to maybe see what is going on.

Can you see: github.com/LinuxCNC/linuxcnc/actions/run...1121/job/59737821393 ?
  • tommylight
  • tommylight's Avatar
07 Jan 2026 18:26
Replied by tommylight on topic A new finite-jerk (S-curve) trajectory planner for testing.

A new finite-jerk (S-curve) trajectory planner for testing.

Category: LinuxCNC Announcements

404 on all links on GitHub and 403 on the guinea pig.
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