city-el

City-EL drive axle CAD model

This model is created using CadQuery.

Model files

Axle model

This model fits both Thrige Titan TTL 140B and Perm PMG132 motor keyways

• live preview
• GLB format
• STEP format
• STL format

Spline cutter model

This is a model of a tool that can be used to cut out the grooves for the fixed wheel spline.

• live preview
• GLB format
• STEP format
• STL format

Working with the model code

The project package is managed using uv.

You can install it by following the instructions.

Working with CQ-editor

You can use CQ-editor to load the model and verify the effect of changes made in its code.

Usage

You can run the editor like this:

~/git/github.com/filip-zyzniewski/city-el/mechanics/drive-axle/model$ uv run edit

CQ-editor will run the script and display the objects after pressing the [▶] button.

If you want to see the effect of changes in the model code on the result, you should press the [▶] button again to re-run the script.

Troubleshooting

if CQ-editor gives you the following error:

qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.

then you can troubleshoot it by setting the QT_DEBUG_PLUGINS environment variable to 1, for example:

~/git/github.com/filip-zyzniewski/city-el/mechanics/drive-axle/model$ QT_DEBUG_PLUGINS=1 uv run edit
[...]
Cannot load library /home/filip/git/github.com/filip-zyzniewski/city-el/mechanics/drive-axle/model/.venv/lib/python3.13/site-packages/PyQt5/Qt5/plugins/platforms/libqxcb.so: (libxcb-xinerama.so.0: cannot open shared object file: No such file or directory)
[...]
~/git/github.com/filip-zyzniewski/city-el/mechanics/drive-axle/model$

In this case it’s enough to install libxcb-xinerama on your system, for example on ubuntu:

~$ sudo apt install libxcb-xinerama0
[...]
The following NEW packages will be installed:
  libxcb-xinerama0
0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
[...]
Unpacking libxcb-xinerama0:amd64 (1.15-1ubuntu2) ...
[...]
~$