Rolling Ball Sculpture - Build and Install - cn:145 

So underrated

Congratulations on another magnificent sculpture! Thank you for showing us what goes into its creation.

What the fu**. You’re such a genius. Ps: could you please make a video where you show how to build, weld tracks. A video in which you explain what metal, stuff and tools you use.

That marble jumping the gap at 0:55 and landing safely on the other side amazes me every time! Love it 😍. Great to see this video, David, and gain a better understanding of the time, effort and collaboration that goes into your beautiful and creative sculptures. 👏🏻👏🏻👏🏻

Legendary

Really cool seeing some of the work behind the scenes

Amazing job. If I could go back in life. This would be my job.

that is amazing

Love you're work.

Awesome!! How many hours did this one take to build?

I think you should experiment with a rolling cage. Ok, envision this: A tennis ball or base ball, when unzipped it has a figure that roughly resembles an 8, but what if that seam was a rail that road on/hung on a very slow motor. As the motor turns, it changes the spot from which the cage gets hung from, making it spin like one of those astronaut's training seats (but much slower). It will have empty space in it, space that will be filled with an infinite track and one marble. (Two if you are feeling spicy). As the cage rolls at a snail's pace, the turning will slowly push the marble up, giving it the momentum/energy needed to continue the neverending journey. Some pieces of track bend up a little to act as low-speed-zones that hold the marble in place untill it's high enough to get the proper speed the next stunt portion needs, or to simply maintain the pace and keep the marble in the middle for viewing. I have no idea how viable this idea is. It just came to my head and I wanted to share it.

How do you provide power to the freestanding structure?

Nice video

Seu nao foce tão pobre eu compraria um quadrado deste e botava na minha sala pra contemplar pra toda minha vida mas sou do Brasil e aqui nao é facio