This is an animation tech-demo about cycloid gearing. The experimental part is the sound generation and noisy edges. Technically, they're not gears, it's a roots-type compressor, but it's the same principle as cycloid gearing.
Amazing work. Also your videos about involute gears. I have an education in mechanical engineering and I thought I understood gears well, but your animations bring in a new insight and I can suddenly understand how gears mesh much, much better.
I moved on to different topics with newer videos, may return to something like this in the future, maybe not. This is actually a Roots-blower, a kind of compressor. But the design principle is cycloid gearing, which is different to involute gears, you can look into them if you're interested.
