There's also AvE's teardown, which in addition highlights the multiple WTFs in the construction. I.e. this wasn't overengineered by experienced people, like a Leica or a Hilti, it was overengineered by a bunch of freshly graduated mech.eng.'s.
By contrast, the mechanical internals and motor controller are simultaneously over engineered, and in some places poorly engineered. It feels like a young team trying hard.
BTW, not throwing rocks. I'm sure I would have done many of the same mistakes years ago.
Also, AvE is great.
Seems the lesson learned here is that unlike software, physical goods require an experienced up-front design that can't be haphazardly iterated on by new-grads to be fixed later.
[1] https://en.wikipedia.org/wiki/Design_for_manufacturability
I'm not so sure software is any different. I think a large part of software's reputation for low quality and buggy software is due to this.