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  • yoshimitsuspeed
  • yoshimitsuspeed
12 Mar 2025 21:01
Replied by yoshimitsuspeed on topic Setting up Probe Basic on my machine questions and issues

Setting up Probe Basic on my machine questions and issues

Category: QtPyVCP

Thanks
Haven't gotten back to the touch probe stuff but hope to soon.

Currently a couple other issues. The first is definitely PB related.
Every time I start PB it puts the coordinate readout in inches when linear units is set to mm in the ini.
G21 does switch it but it's still annoying. How do I set it so everything starts and always stays in mm?


The second I don't remember if this was an issue in other UIs but if I hit home x or y it does not lift Z before homing.
I see there is a go to home file in subroutines which I assume is used for home all but don't see anything specifically for individual axis. Would I need to create a subroutine for x and for y to get it to Z0 before homing them?
  • d12k6
  • d12k6
12 Mar 2025 20:37 - 12 Mar 2025 20:38
Replied by d12k6 on topic Arduino IO Expansion

Arduino IO Expansion

Category: Show Your Stuff

Hello, is it possible to create "internal buttons"? I mean not a physical button, but only in the software e.g.
if(value == x) internal_button = true
  • besriworld
  • besriworld
12 Mar 2025 19:44 - 12 Mar 2025 19:46
Replied by besriworld on topic OLD Lathe conversion to a CNC

OLD Lathe conversion to a CNC

Category: Turning

One time I only received a warning message.
I did the latency test using the script at @ tommylight
Most of the time the maximum delay is 190us
I think when it jumped up 700us I saved a file to a flash drive.

What should I do now?
 

File Attachment:

File Name: 1741790691.hw.txt
File Size:4 KB

File Attachment:

File Name: 1741790691.lat.txt
File Size:624 KB
  • webbyguy
  • webbyguy
12 Mar 2025 19:38
Replied by webbyguy on topic Can't eek out that last bit of jitter

Can't eek out that last bit of jitter

Category: General LinuxCNC Questions

Because I couldn't figure out how to disable smt for my fx 8350 cpu with the rtai kernel.  I tried switching to an X6 1090T.  I also disabled the thermal limits in bios.  My max jitter reduces to +/-14.4us (with all points within +/-5us except the ones right at +/-14.4us.  I wish I had taken a picture.)  I then turned the thermal limits back on, and I got about the same result I was getting for the fx 8350.  So, I turned the thermal limits back of again, but it didn't go back to the +/-14.4us max jitter.  It still looked the same as the fx 8350.  I tried resetting and messing with some other settings, and I can't get back to that +/-14.4us or better.  With some systems, is there some random timing at startup that causes different latency results even though there were no settings changes?
  • Lindley
  • Lindley
12 Mar 2025 19:13

Incorporating HAL script recommendation (2.7.14 to 2.9.4 conversion of XZC

Category: General LinuxCNC Questions

Very possible...wrong file attached.  

In the meantime, found several apparent errors in the HAL when comparing to the original version conversion.  Further,  I had to reset the BIOS to defaults for Debian 12 to install and had not reset the serial port address. This should be consistent set of INI, HAL, and error report files.
  • webbyguy
  • webbyguy
12 Mar 2025 18:39
Replied by webbyguy on topic Can't eek out that last bit of jitter

Can't eek out that last bit of jitter

Category: General LinuxCNC Questions

Thanks royka,
Do you happen to know, in the rtai kernel, would I move the processes with priority listed as rt?
  • Hakan
  • Hakan
12 Mar 2025 18:17
Replied by Hakan on topic Ethercat gantry config

Ethercat gantry config

Category: EtherCAT

I don't have all the answers but to get you going here is something.

Afaik a gantry system is setup using trivkins kinematics - that you have - and specify coordinates=XXYZ (if you have two servos in X).
You will get four joints, joint_0 and joint_1 is X, joint_2 is Y, joint_3 is Z.
Consequently, a joint represents a servo.
Set up the system like any gantry system.
Homing - see the linuxcnc homing doc.
Looking at the hal and ini files you seem to be almost there. Just change the trivkins line in the ini file and see if it becomes better.
 
  • Sbvr4
  • Sbvr4
12 Mar 2025 17:39
Replied by Sbvr4 on topic Adding Pre and Post Gcode to Versa Probe

Adding Pre and Post Gcode to Versa Probe

Category: Advanced Configuration

This is for v2.10. My apologies for the ambiguity. 
Thank you
  • Darium
  • Darium
12 Mar 2025 17:37
Replied by Darium on topic Problems with Lichuan Ethercat servo drive

Problems with Lichuan Ethercat servo drive

Category: EtherCAT

Wow your numbers are impressive.
I have been under tuning my machines. The acceleration is around 0.1-0.2G. Since I only mill steel so no need for high speed and I can already feel my machine shake with that acceleration. I think it need jerk limit trajectory planner to unlock its full potential
  • PCW
  • PCW's Avatar
12 Mar 2025 16:50
Replied by PCW on topic OLD Lathe conversion to a CNC

OLD Lathe conversion to a CNC

Category: Turning

Do you still get real time errors on the 6.12 kernel?

(the 6.1x kernels are know to have poor network latency)

Note that the normal latency test is not really helpful here
as it doesn't actually do anything (no memory allocation, no I/O etc etc)
so just tests dispatch latency
 
  • cmorley
  • cmorley
12 Mar 2025 16:36
Replied by cmorley on topic Qtvcp Development Discussions

Qtvcp Development Discussions

Category: Qtvcp

Let me know when you think the Gui is ready for inclusion.
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