A very smart kid
 

You’ll get a kick out of the modeling he does at the beginning of his design phase.

https://m.youtube.com/watch?v=gdXOS-B0Bus

He finally found a use for some of that math that was force-fed into us years ago and that we haven’t thought about since.

I need to hire this guy to calculate some motorcycle rear suspension link geometries for me.

I didn't follow much (if any) of his explanation for the modeling. I understood the constraints - but the match was way over my head.

Very little of the modeling was for the design, it was modeling the difficulty of the design process against some of his arbitrary constraints. I would’ve skipped that part entirely, and gone straight to thinking about the design, but I think he had some fun and, it’s just another level I never got to.

I would like to have seen more modeling of the actual arm itself but he left almost all of that out.

Was there supposed to be a sonic sound?

Yeah, you could hear the sonic booms.

Listen for the sound of a rifle bullet crack.