Mechanical Rigging using Ryan King Art's tutorial

After finishing the Blender Guru donut tutorial I wanted to look into articulated objects. Initially I looked at Blender skeletons but then I found Ryan King Art’s tutorial on mechanical rigging.

Basically for each rigid object the following steps are executed:

The resulting object then can be animated by defining keyframes for joint angles as shown in Blender Guru donut tutorial part 11. Rendering the video using the Cycles engine on my 8 core CPU took 3.5 hours. If you have a GPU supported by Blender this would take much less time.

See below for the resulting video: