Algodoo

you simply can't make one. the energy you win when the balls fall is the same that you lose when you raise the balls, so it would just spin indefinitely. ther are losses on the balls' friction and impact, and there is air friction, so it will brake a lot. there's no known way to make a machine that gains energy like twhat you wanna make

ik it doesnt work but i eanted to se if it works in algodoo