Joerg Sprave did something similar in 2013, but mechanically pushed the ball along the spiral instead of wiggling the whole thing. I like your idea better, and

Joerg Sprave did something similar in 2013, but mechanically pushed the ball along the spiral instead of wiggling the whole thing. I like your idea better, and I bet it would be a fun project! https://www.youtube.com/watch?v=LH8G7atCFSQ https://www.youtube.com/watch?v=LH8G7atCFSQ