Create bevel gears in FreeCAD and animate them with the Animation Workbench
FreeCAD – The Animation Workbench
Addendum 02/09/2022 / Nachtrag :
There is a newer video for this topic based on FreeCAD with a Python code animation:
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The music comes from the YouTube audiolibrary:
Overcome - Ugonna Onyekwe
Hope you like the video.