@@mechanic_ideas "If you look carefully there is a chain drive" That's funny since if you look carefully all you see is a "belt" with sprockets puncturing it. yeah say "the drawing was simplified" but that doesn't explain it all. "the drawing was simplified because making chain links would take up a lot of computing/memory"
The answer is: Just like most things that use a belt. Like in your car. One belt drives the AC compressor, alternator, power steering, flux capacitor. But this overly simplified design has a huge flaw in it. The drive sprocket should NOT be in direct/inline with the driven sprockets. Unless you have a PERFECTLY matched and tensioned system the chain could bind, and that will impact performance. The drive sprocket should be either pushed up to clear the belt (chain). So that the belt makes contact on ONLY one side of the sprocket at a time or place outside of the loop. However we need to take this video as a conceptual design not as a finished product or even a prototype.
