The studio project began as a way to look into making architecture in the Bay Area using local materials, Rael explained. But it's taken on life from there.
"I wanted to 3D print, but I found the materials were very expensive. So I wondered if it was possible to print with less expensive materials—and if we could invent our own materials that would be less expensive," Rael said. [Read also: "3D Print Your Own Invisibility Cloak at Home."]