finished, working prototype bullroarer.

it “cycles” the way it’s supposed to: it spins as far as it can one direction, and then spins back the other direction automatically, while i spin the whole thing one direction all the time, thus making the characteristic “bull roar” noise. i made it out of plywood, to test the theory. i’ve got a chunk of really dense hardwood that should make a better, louder noise.

SUCCESS! 👍😎