Ross built a giant Rube Goldberg type machine for the Inquiring Finds exhibit at the Honolulu Museum of Art, Spalding House.
This is the transport system that carries the balls back up to the top of the system:
All the gears are wood and were cut out using the Zenbot 4848 CNC mill with a 1hp hitachi spindle.
Here is a video of Ross installing the machine and it running:
Here is a segment from Career Changers TV where an educator discusses how the exhibit positively affected her students.
If you would like to see it, the exhibit runs from February 5 to July 6, 2014 at the Honolulu Museum of Art, Spalding House.