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  • kworm
  • kworm
02 Jul 2025 23:34
Replied by kworm on topic Configuración thcad2 con mesa 7i96s

Configuración thcad2 con mesa 7i96s

Category: General LinuxCNC Questions

Hi, I had the same issue and there was a problem with pncconf displaying the THCAD page if the pin number was 0.  I made a pull request that has been merged a couple of days ago into 2.10 master.  You could either use an input that doesn't have a pin number of 0 or upgrade to the 2.10 master.

Hope this helps.
  • RogEnk
  • RogEnk
02 Jul 2025 23:24
Homing brain fog? was created by RogEnk

Homing brain fog?

Category: Basic Configuration

Hi all,
Finally got around to LinuxCNC'ing my cheap bench top mini mill, making the jump from Arduino/GRBL (Ughh) to a Mesa7196S.
Problem is my Y axis is making me feel like my IQ has plummeted..

X and Z, perfect (have opto sensors at Z+ and X- (X is mounted to the left of Y saddle as viewed from front - aiming to have bottom left corner as my 0,0).

Unfortunately I appear to lack the logic to get the Y limit configured so that it can be a combined home/limit at +145mm without mirroring the Y axis!
For clarity: I want to home the machine by moving the bed fully to the right for the X axis (working) and fully towards the idiot Operator (tool max +Y), but everything I have tried either inverts the Y or results in soft limit exceeded.

My ini and hal are attached, any help will be very much appreciated!

Cheers,
Rog
  • PCW
  • PCW's Avatar
02 Jul 2025 23:20 - 02 Jul 2025 23:22

7i92M very weird communication problem!!!

Category: Installing LinuxCNC

--- 10.10.10.10 ping statistics ---
60000 packets transmitted, 60000 received, 0% packet loss, time 60420ms
rtt min/avg/max/mdev = 0.057/0.276/16.993/0.227 ms, pipe 2

OK that (almost 17 ms) is the issue.

Depending on the Ethernet hardware on the host, solutions are:

If it's a Realtek MAC, install the DKMS driver

Disable PCIE/Ethernet power management

Make sure all power management is disabled in the BIOS
It that's not good enough, pin the Ethernet IRQ to the last processor
and use isolcpus in the kernel command line.

Here's a long  thread on solutions to this issue:

forum.linuxcnc.org/18-computer/56380-error-finishing-read-sigh
 
  • ANGELOS13
  • ANGELOS13
02 Jul 2025 22:56
Replied by ANGELOS13 on topic 7i92M very weird communication problem!!!

7i92M very weird communication problem!!!

Category: Installing LinuxCNC

--- 10.10.10.10 ping statistics ---
60000 packets transmitted, 60000 received, 0% packet loss, time 60420ms
rtt min/avg/max/mdev = 0.057/0.276/16.993/0.227 ms, pipe 2
  • PCW
  • PCW's Avatar
02 Jul 2025 22:09 - 02 Jul 2025 22:10

7i92M very weird communication problem!!!

Category: Installing LinuxCNC

OK, so there is a real time issue that needs to be addressed
before LinuxCNC will run on that system.

To get a rough idea of network latency:

sudo chrt 99 ping -i .001 -q -c 60000 10.10.10.10

This will run for a minute and then print statistics.
  • Benb
  • Benb's Avatar
02 Jul 2025 21:41
  • ANGELOS13
  • ANGELOS13
02 Jul 2025 21:36
Replied by ANGELOS13 on topic 7i92M very weird communication problem!!!

7i92M very weird communication problem!!!

Category: Installing LinuxCNC

Linuxcnc is running, the light on the rj45 stays solid green and the lights on the board stay solid without any activity.   
  • PCW
  • PCW's Avatar
02 Jul 2025 21:31
Replied by PCW on topic Configuración thcad2 con mesa 7i96s

Configuración thcad2 con mesa 7i96s

Category: General LinuxCNC Questions

The THCAD support was added to pncconf about 3 years ago so definitely in 2.9.4

The THCAD screen should appear on the next screen after the one where
you set the stepgen/encoder functions.
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