Probe Basic Lathe on LinuxCNC 2.9

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24 Dec 2021 15:00 #229892 by NoJo
I am using Linux CNC 2.9 with Python3.
I have installed QtPyVCP. With the info cmd I get:
QtPyVCP Info
        Version:        python3_master+140.gb276bee8.dirty
    Qt Info
        Qt Version:     5.11.3
        Qt API:         PyQt5
        Qt API Version: 5.11.3
I have installed the Python3 branch of Probe_Basic
When I try execute the Probe_Basic MMI I get numerous errors as follows:
        Traceback (most recent call last):
  File "/home/jono/qtpyvcp/qtpyvcp/widgets/hal_widgets/hal_label.py", line 66, in textFormat
    self.setValue(self._value)
  File "/home/jono/qtpyvcp/qtpyvcp/widgets/hal_widgets/hal_label.py", line 50, in setValue
    self.setText(f"{value:{self._fmt}}")
ValueError: Invalid format specifier

Traceback (most recent call last):
  File "/home/jono/qtpyvcp/qtpyvcp/widgets/display_widgets/vtk_backplot/vtk_backplot.py", line 411, in load_program
    for wcs_index, actor in list(self.path_actors.items()):
  File "/home/jono/.local/lib/python3.7/site-packages/vtk/qt/QVTKRenderWindowInteractor.py", line 309, in __getattr__
    " has no attribute named " + attr)
AttributeError: VTKBackPlot has no attribute named path_actors

Traceback (most recent call last):
  File "/home/jono/.local/bin/probe_basic_lathe", line 11, in <module>
    load_entry_point('probe-basic', 'gui_scripts', 'probe_basic_lathe')()
  File "/home/jono/probe_basic/probe_basic_lathe/__init__.py", line 19, in main
    qtpyvcp.run_vcp(opts, VCP_CONFIG_FILE)
  File "/home/jono/qtpyvcp/qtpyvcp/__init__.py", line 27, in run_vcp
    run(*args, **kwargs)
  File "/home/jono/qtpyvcp/qtpyvcp/app/__init__.py", line 129, in run
    launch_application(opts, config)
  File "/home/jono/qtpyvcp/qtpyvcp/app/launcher.py", line 82, in launch_application
    app.initialiseWidgets()
  File "/home/jono/qtpyvcp/qtpyvcp/app/application.py", line 251, in initialiseWidgets
    w.initialize()
  File "/home/jono/qtpyvcp/qtpyvcp/widgets/hal_widgets/hal_label.py", line 92, in initialize
    self.setValue(self._in_pin.value)
  File "/home/jono/qtpyvcp/qtpyvcp/widgets/hal_widgets/hal_label.py", line 50, in setValue
    self.setText(f"{value:{self._fmt}}")
ValueError: Invalid format specifier

I also on occasion get an error related to a task overrun.

Please could you provide insight as to whether ProbeBasic / Qyvcp / LimuxCNC2.9 are compatible? If so, how can I go about resolving these issues?
 
The following user(s) said Thank You: TurBoss

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24 Dec 2021 17:03 #229904 by spumco
I can confirm that the following works:

MX21
Lcnc 2.9
Qtpyvcp
Probe Basic

Based on your post, I think you may need to do something with QT.  Here's a snippet from the thread I used to get the above working:

The important difference is that instead of installing MX Linux 19.4 we will install the 21 Release Candidate. This is to get a recent enough QT version (5.15, requirement is 5.12 and MX 19.4 comes with 5.11).

Hope that points you in a productive direction.

forum.linuxcnc.org/qtpyvcp/44000-definit...sic-and-linuxcnc-2-9

 

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24 Dec 2021 18:13 - 24 Dec 2021 18:13 #229913 by TurBoss
your setup is great is just a small bug I just fixed

plz if you could run in probe_basic directory

git pull

then

qcompile .

i thin that will work

Thanks for the report
Last edit: 24 Dec 2021 18:13 by TurBoss.

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25 Dec 2021 10:21 - 25 Dec 2021 11:43 #229951 by NoJo
Thanks Turboss. The change has solved the format errors I was getting.
There are two further issues I hope someone can help with.

ISSUE 1 : CRITICAL
When I select the Probe_Basic_Lathe config  under Linux CNC, I at different stages will get the error:

ERROR - Unexpected realtime delay on task  0 with period 100000
This Message will only display once per session.
Run the Latency Test and  resolve before continuing.

I sometimes get the error when the screen first loads - but linux cnc continues to execute. I can select most screens - but when I select MAIN or FILE, linux cnc shutsdown with the above error

I have done the 'runtests' functions and all passes. Also the latency Test is reasonable with QT Designer open. I do not get the error if I run any of the other simulations (eg qtaxis_lathe). 

Please indicate how I can try establish the reason for this error

ISSUE 2
When I open the Probe_Basic_Lathe.yml file in QT Designer, I get the following warnings:

The set-type property alignment could not be read.
The enumeration-type property orientation could not be read.
The enumeration-type property pinType could not be read

I am not sure if these can just be ignored, or if they are also related to a Python2 to Python3 migration? If I open the Probe_Basic.yml I one get the last one


 
Last edit: 25 Dec 2021 11:43 by NoJo. Reason: Additional analysis

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30 Dec 2021 03:20 #230311 by Lcvette
2.9 and the latest PB py3 seems to be a bit buggy still i think, you may be better off using the lock down version from the installer. the realtime error is typically related to latency. what was the latency test results?

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18 Nov 2023 11:45 #285822 by geostein8888
Hello,
i have the same problem in lathe mode, but i installed probe_basic with the deb packages so i do not have a git repo in to make a pull

do you have a tip for me how to solve the problem

File "/usr/lib/python3/dist-packages/yaml/scanner.py", line 577, in fetch_value
raise ScannerError(None, None,
yaml.scanner.ScannerError: mapping values are not allowed here
in "<unicode string>", line 331, column 63:
... stance from spindle toolchange:

Thanks
Georg

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18 Nov 2023 12:27 #285824 by rodw
Please note the linuxcnc 2.9 ISO download includes the qtpyvcp repos set up for apt for covenience. you just need to do the usual sudo apt install per the qtpyvcp web site.

This also implies thet if qtpyvcp updates their repos, sudo apt upgrade will get the latest published version...

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18 Nov 2023 13:30 #285826 by geostein8888
unfortunately apt install python3-qtpyvcp tells me that i already have installed the latest version

root@siridrill:/usr/lib/python3/dist-packages/probe_basic# apt install python3-qtpyvcp
Paketlisten werden gelesen… Fertig
Abhängigkeitsbaum wird aufgebaut… Fertig
Statusinformationen werden eingelesen… Fertig
python3-qtpyvcp ist schon die neueste Version (4.0-35.dev).
0 aktualisiert, 0 neu installiert, 0 zu entfernen und 0 nicht aktualisiert.

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18 Nov 2023 13:43 #285827 by geostein8888
here the info qtpyvcp

root@siridrill:/usr/lib/python3/dist-packages/probe_basic# qtpyvcp -i

QtPyVCP Info
Version: 0+unknown

LinuxCNC Info
Version: 2.9.1

Qt Info
Qt Version: 5.15.8
Qt API: PyQt5
Qt API Version: 5.15.9

System Info
Description: Debian GNU/Linux 12 (bookworm)

Kernel: 6.1.0-13-rt-amd64
Version: #1 SMP PREEMPT_RT Debian 6.1.55-1 (2023-09-29)
Ram: 16 GB

CPU Info
Vendor ID: Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz
Architecture:
Physical Cores: 4
Logical Cores: 4

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19 Nov 2023 23:26 #285972 by Lcvette
run the uninstall commands below, then follow the installation section from the link below to install the apt version. easy peasy just did this on my machines the other day works perfectly, be sure to rename your config files something other than probe basic so they do not get overwritten during the update. never a bad idea to keep a backup copy somewhere also before running updates just to be safe!

uninstall existing deb installation, run each in terminal in order below to remove without dependency errors:

sudo dpkg -P python3-probe-basic

sudo dpkg -P python3-qtpyvcp

sudo dpkg -P python3-hiyapyco

Next, follow the short instructions here to setup apt:

kcjengr.github.io/probe_basic/quick_start_apt.html

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