QtPlasmaC + CoreXY Kinematics

More
10 Jan 2026 23:32 #341254 by deckname
QtPlasmaC + CoreXY Kinematics was created by deckname
Hi everyone, i´m new here.I’m having major issues getting my LinuxCNC setup to work with QtPlasmaC and CoreXY kinematics.My setup:
  • LinuxCNC 2.9.6
  • Mesa 7i96s Ethernet + 3 steppers (X, Y, Z)
  • QtPlasmaC GUI
  • CoreXY kinematics (tried corexykins and corexy_by_hal)
QtPlasmaC seems to try to access pins and signals that don’t exist with CoreXY kinematics.
I had previously tried running the machine with SCARA kinematics, but I naively thought CoreXY would be simpler.

Is a setup like this possible for a beginner or should i try a different approach?
Why are kinematics that complicated and troublesome anyways?

Thanks in advance for any help!

Please Log in or Create an account to join the conversation.

  • tommylight
  • tommylight's Avatar
  • Away
  • Moderator
  • Moderator
More
10 Jan 2026 23:43 #341255 by tommylight
Replied by tommylight on topic QtPlasmaC + CoreXY Kinematics
That will most probably require a bit more hand editing as you also need to have some of the contents of 3joint_xyz.hal, but i do not recall exactly what or how, it was a long time ago since i used this.
Did you try changing the kinematics in the in file to
KINEMATICS = corexykins
And did that produce any result?
But first, does the machine have home/limit switches on X and Y ? That is a must.

Please Log in or Create an account to join the conversation.

More
11 Jan 2026 11:30 #341261 by deckname
Replied by deckname on topic QtPlasmaC + CoreXY Kinematics
Thanks for the reply
I tried corexykins, didn´t work because i use uspace?
so i went with KINEMATICS = corexy, which then caused problems with loadrt [KINS]KINEMATICS and loadrt [EMCMOT]EMCMOT...
Why are home switches necessary? I dont have the machine connected at the moment since I´m only trying to get the software to start.

Is this combination of software even the right choice?
I´m building a small portable plasma cutter while using some parts of an old 3d printer and i would really like to use corexy.
Are there other GUIs that work better with this?

Please Log in or Create an account to join the conversation.

More
11 Jan 2026 18:22 #341288 by deckname
Replied by deckname on topic QtPlasmaC + CoreXY Kinematics
I´m sorry, i think i mixed something up.
KINEMATICS = corexykins actually works.
might have been the home switches...

Thanks again

Please Log in or Create an account to join the conversation.

  • tommylight
  • tommylight's Avatar
  • Away
  • Moderator
  • Moderator
More
11 Jan 2026 21:31 #341299 by tommylight
Replied by tommylight on topic QtPlasmaC + CoreXY Kinematics
You are welcomed, always, and thank you for reporting back, i am building a small 10W laser with spare parts from a Creality CR-30 (the whole gantry as it is very sturdy and uses 10mm wide belts tightened to breaking point! :) ) so i will need corexy to work, again.

Please Log in or Create an account to join the conversation.

Time to create page: 0.062 seconds
Powered by Kunena Forum