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I left the PC running and when I came back I lost menu, mouse and LinuxCNC. I installed Debian 12 and used the Mate desktop if that makes any difference.

This is what Tom got.

paste.debian.net/1322599/
paste.debian.net/1322600/
paste.debian.net/1322601/

Can I see the error messages Tom was running into or whatever the issue was? Any kind of trace or something?

The 7I96S analog output is a potentiometer replacement.
if you supply 9VDC to SPINDLE+ and SPINDLE- the output
will vary between 0 and +9VDC for PWM values of 0 to 100%.

It is expected that the potentiometer connections on the drive
supply this 9VDC.

Hallo Norbert,

Entschuldigung, ich habe ein neues Laptop, da habe ich einiges
installieren müssen. Morgen schaue ich mir das alles an.
Vielen Dank für Deine Bemühungen.
Dieter Heinrich

Tom on the IRC had some issues running LinuxCNC until he isolcpus, I just installed Debian 12 then the debs and used grub customizer to add the isolcpu and everything seems to work well. Latency is insane low!

JT

Hello everyone, I'm new to linuxcnc. I testing a new setup with stepper motors and mesa7i96s, it is working fine but at idle the xyz starts jittering even after homing the axis. This cause a vibration on the stepper motors. Obviously my stepper motors don't feedback the position to Mesa controller hence I don't understand why this is happening. Attach a 3 second video to show the issue 

Grateful if you could shed some light on this.

 

Hello,

    I am trying to control my sherline lathe spindle. It uses a potentiometer that is wired to mains. I have been looking at older threads for people who have done this but I am still a little unclear on the best approach. 

   It seems mesa 7i96s has a 5-20v isolated analog output - but I would need to convert thisto 0-9v to driver the sherline - what is the easiest way to go about this? I have read that people opted to use a firmware that gives the mesa an extra pwm on stepgen4 and do a pwm to analog conversion board such as spinx1A - but even with the spinx, how do you get its range of 5v - 21 to convert to linear 0-9v? Could you use something like a dc-dc buck converter (xl4015 or LM2596S)? Want to make sure I am doing things as safely as possible.
 

Can you try the non-index initialization ((q) mode?
I really cannot see how to get a full runaway unless the
initial angle is wrong.

When you say a runaway, do you mean continuous spinning?
(this would mean the encoder is working)

Loss of control (which is different than a runaway) may result
from  encoder issues. (lost counts etc)

You may need to disconnect the drive from the linear axis
and set huge following error limits to debug this fully

Well thanks to spumco for providing this link...
spumco post=294853 userid=28776

github.com/AlexmagToast/LinuxCNC_ArduinoConnector

I now have a little nano board communicating with HAL both inputs and outputs. So I just need to port the communication code from the nano test board into my ARM project and rejig the messages a bit and with a touch of luck I should have bidirectional data flow from HAL to my board. Hopefully the .py script is easy on the Linux overhead.

I did some more tests - I still get runaways. This time I paid attention to bldc.0.rotor-angle and bldc.0.phase-angle values and I did little fiddle with bldc.0.drive-offset parameter.
Difference between rotor-angle and phase-angle is 0.25 or 0.75, quarter of electrical revolution or 90 degrees. And it does not change if drive-offset parameter value is changed. I tried 0, 45, 90 and -30 degrees.
What is relation between rotor-angle, phase-angle and drive-offset in BLDC component?

have you tried not calling 'self' as an argument:

Good try but no go It fixed the error but did nothing! 

SO back to the python error.

This might sound stupid. Ive just done a similar job as you although I didn't bother with any mechanical parts as my jr has been used in a school and is still like new, only problem I have is I have one pice of metal I can't find out where goes.
Do you have any idea where this goes.
Thanks in advance for any help!

maybe try:

Thanks, that fixed the M07/M08

This is the error I get when I uncomment the set_default_blending_new
Traceback (most recent call last):
  File "/usr/bin/qtplasmac_gcode", line 1439, in <module>
    app = Filter(sys.argv)
          ^^^^^^^^^^^^^^^^
  File "/usr/bin/qtplasmac_gcode", line 153, in __init__
    self.process_file()
  File "/usr/bin/qtplasmac_gcode", line 244, in process_file
    line = self.parse_code(line)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/bin/qtplasmac_gcode", line 308, in parse_code
    self.set_default_blending()
TypeError: set_default_blending_new() missing 1 required positional argument: 'self'