THC - out of ideas

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03 Feb 2022 22:46 #233921 by rodw
Replied by rodw on topic THC - out of ideas
Check the THC enable button is enabled in the GUI. IF it is, sounds like you are missing a pin connection somewhere.
Slow down on corners is expected and unavoidable due to laws of physics.
There are settings to disable the THC on a velocity slowdown.

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04 Feb 2022 08:08 - 04 Feb 2022 11:54 #233951 by samforsey12345
Replied by samforsey12345 on topic THC - out of ideas
Hey Rod - yep thc is enabled on the gui.

Any idea what pin i'm missing? Perhaps i should just do a complete reinstall of linuxcnc and qtplasmac and use the config wizards and hope that fixes it.

Yep that was my understanding too. It can only accelerate at a limited rate, it can't go from 100-0-100 in different directions instantly.

Thank you.

Sam
Last edit: 04 Feb 2022 11:54 by samforsey12345.

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06 Mar 2022 17:44 #236520 by samforsey12345
Replied by samforsey12345 on topic THC - out of ideas
Hi guys - trying to do update now.

Ive done sudo apt-update and sudo apt dist-upgrade with no problems

I have then uninstalled all linuxcnc in synaptic package manager.

I have then set my repositories to  deb and deb-src buildbot.linuxcnc.org/ buster master-rtpreempt 

I then reload and have options of linuxcnc packages to install, however i get a whole host of depends: errors and cannot reinstall a package.

I have tried uspace, uspace-dbgsym, uspace-dev and none of them will install

Are the repositories not working at the moment or have i done some other cock-up?

Thanks
Sam

 

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06 Mar 2022 21:51 #236533 by phillc54
Replied by phillc54 on topic THC - out of ideas
What Linux distribution are you using?

The packages on Buildbot for master branch are only for Debian Buster or equivalents.

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07 Mar 2022 06:57 #236568 by rodw
Replied by rodw on topic THC - out of ideas
Well if you want to go with the bleeding edge, you can install linuxcnc from the debian repositories as follows:
open a terminal
sudo apt install geany curl
sudo geany /etc/apt/sources.list
make sure any lines containing cd are commented out with a #
replace any reference to bullseye, buster or stable with unstable eg:

deb http://deb.debian.org/debian/ unstable main non-free contrib
deb-src http://deb.debian.org/debian/ unstable main non-free contrib

sudo apt update
sudo apt full-upgrade
sudo apt install linuxcnc-uspace linuxcnc-uspace-dev mesaflash
reboot
type uname -a  (to check PREEMPT-RT kernel is running as its installed by the install)
Linuxcnc should be in the menus or open a terminal and type: linuxcnc

Note that changes using unstable should be replaced with testing (Debian 12 Bookworm) when Linuxcnc gets there (soon)

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07 Mar 2022 07:01 - 07 Mar 2022 07:02 #236569 by rodw
Replied by rodw on topic THC - out of ideas
I tested this out last night and it was flawless.
I started with Debian Bullseye.
I was also able to install the ethercat master from another repo but that's another story!
Tested as working on my ethercat machine.
I figured that with the controls Debian has around code entering their repos, the risk from having issues with the unstable branch is minimal
Last edit: 07 Mar 2022 07:02 by rodw.

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07 Mar 2022 14:13 #236580 by robertspark
Replied by robertspark on topic THC - out of ideas
will the debian build in the debian repositories become outdated over time?

I know that some stuff such as I think XFCE tend to run a version behind in the repositories. "bleeding edge" is running from git clone whether RIP / local deb build + install as there is no guarantee it will work every time you update which is the essence of a development version..... sometimes it works and sometimes not.

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07 Mar 2022 22:01 #236607 by phillc54
Replied by phillc54 on topic THC - out of ideas
At this stage it will, as it is not yet being updated.

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13 Mar 2022 12:45 - 13 Mar 2022 12:51 #237109 by samforsey12345
Replied by samforsey12345 on topic THC - out of ideas
Okay guys, I'm back.

Thanks for all the advice. I am now on debian 11.2 and QTplasmaC is updated to the Version v1.221.165.


I have rebuilt my configs, just going through the initial tests. I can happily home all axes, I can pulse the torch (to which arc voltage is then visible on the gui).

I can probe test, but as soon as the float switch is activated linuxCNC crashes and i get the following error message:
 
Traceback (most recent call last):
File "/usr/share/qtvcp/screens/qtplasmac_4x3/qtplasmac_4x3_handler.py", line 2321, in <lambda>
self.w.led_float_switch.hal_pin.value_changed.connect(lambda v:self.jog_inhibit_changed(v, 'float switch'))
File "/usr/share/qtvcp/screens/qtplasmac_4x3/qtplasmac_4x3_handler.py", line 1901, in jog_inhibit_changed
if self.isJogging[axis]:
KeyError: 3

I can hit retry but then the same thing happens again. Initially my float switch was inverted, and always on. But having added -not to the input it now works as it should, the LED lighting up only when it is activated.

Any ideas peeps? thanks so much in advance,

Sam
 
Last edit: 13 Mar 2022 12:51 by samforsey12345.

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13 Mar 2022 18:25 #237139 by snowgoer540
Replied by snowgoer540 on topic THC - out of ideas
Update.  That specific issue was fixed with version .166.

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