These models are for various things i made. The models are sorted by the CAD software used to create and customize them:
Open the files with OpenSCAD or use the openscad cli.
https://github.com/CadQuery/cadquery
Use CQ-editor or run the python scripts.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.