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  • Aciera
  • Aciera's Avatar
10 Mar 2025 16:54
Replied by Aciera on topic Delta VFD-B Modbus with QtDragon_hd

Delta VFD-B Modbus with QtDragon_hd

Category: General LinuxCNC Questions

spam removed
  • Todd Zuercher
  • Todd Zuercher's Avatar
10 Mar 2025 16:35
Replied by Todd Zuercher on topic QTplasmaC upgrade now huge latency

QTplasmaC upgrade now huge latency

Category: Computers and Hardware

The old Linuxcnc version would have been based on running a 32-bit version of Debian 7 (Wheezy) and depending on your hardware likely running the RTAI real time patched kernel. This worked well with many slower CPUs.

The latest versions of Linuxcnc's ISOs are based on 64-bit Debian 12 (Bookworm) and comes with a Preempt RT patched real time kernel. This system generally does not give good latency with slower CPUs. You may need to try to install an RTAI version. (I have not tried to get a current release of Linuxcnc running with RTAI so I can't be of much help there other than to point you to the documentation.)
linuxcnc.org/docs/stable/html/getting-st...#cha:Installing-RTAI
  • Todd Zuercher
  • Todd Zuercher's Avatar
10 Mar 2025 16:22 - 10 Mar 2025 16:24
Replied by Todd Zuercher on topic Error when starting LinuxCNC: “undefined symbol: kinematicsSwitch”

Error when starting LinuxCNC: “undefined symbol: kinematicsSwitch”

Category: General LinuxCNC Questions

I think you might be missing some essential entries in the [TRAJ] section of your ini file and one that's there may be named wrong.

You have:
[TRAJ]

COORDINATES = X Y Z
NO_FORCE_HOMING = 1
MAX_LINEAR_VELOCITY = 100.0
DEFAULT_VELOCITY = 50.0


Try changing it to:
[TRAJ]

COORDINATES =  X Y Z
NO_FORCE_HOMING = 1
LINEAR_UNITS = inch
ANGULAR_UNITS = degree
DEFAULT_LINEAR_VELOCITY = 50.0
MAX_LINEAR_VELOCITY = 100.0
  • robh
  • robh
10 Mar 2025 16:15
Replied by robh on topic Joint Error After large rotary move

Joint Error After large rotary move

Category: General LinuxCNC Questions

Would be grate to get a driver update to 64bit i have done the job so so rush for me, once done i can test it out
because as i see it even if i reduce for half on the count , will only give 180 turns, twise as many parts output.
  • fabi0696
  • fabi0696
10 Mar 2025 15:41
Replied by fabi0696 on topic EL6731 changes cyclically to INIT status

EL6731 changes cyclically to INIT status

Category: EtherCAT

Okay, then I'll look for this post.

The other terminals, e.g. the EL7041 terminals, work straight away. Only the ProfiBus does not start straight away after a Koppler restart.

I have the current TC3 project here again. I have changed the file extension tnzip to zip so that I can upload it.

 

File Attachment:

File Name: LinuxcncNe...3-10.zip
File Size:195 KB
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