Marble in a Pipe

my latest version of pipes on a track, called marble on a track.

When I was a kid, dental drills weren’t powered by compressed air, as they are today, but had arms attached to the drill leading back to a motor. Power was transmitted from the motor to the drill by an elastic cord that ran around a drive wheel at the motor end, then through a series of rollers attached to the joints in the arms, then finally to a second wheel on the drill end. Anyway, my dentist, a clever pediatric dentist, put a bit of cotton fluff on that long elastic cord, so his young patients could watch it going round and round as he drilled away on their teeth. He called it a ‘rabbit.’

This reminded me of that.

that’s funny

all this can be done just with blender?

yes, and more!