Original Wild Gears Kickstarter Video
Here is a video that Aaron Bleakley made for his successful Kickstarter campaign to launch Wild Gears in 2013. The final sheets of gears available differ somewhat from the ones you see here, as he worked out the details as the project went along.
See also the Imgur page showing designs he made as he was developing the set!
Cool. Is this like the open source version of a Spirograph? Does he use 3D Printer and CAD to design the
Stators and Rotors
I’m sure he used CAD to design it, but the pieces are laser cut out of sheets of acrylic by Ponoko. Check out Ponoko – it might enable you to do work-related stuff. See https://www.ponoko.com/#creative_agencies