Photos: Under the hood of the Tesla Roadster

The event was held at Menlo Park-based TechShop, an open workshop that lets members, for $100 a month or $30 a day, have access to all manner of industrial tools like laser cutters, brake presses or a 3D printer. Here, a TechShop employee holds a sign fashioned from the workshop's metal cutter.

Photo by Stefanie Olsen/CNET News.com