The Grafton on Sunset (Bar 20), 8462 W. Sunset Blvd., West Hollywood, CA 90069
From 8:30 p.m. to midnight
9550 Crenshaw BLVD., Inglewood, CA 90305
From 9 a.m. to noon
Its designs are open source, meaning anyone with access to 3-D printers can print out the parts and assemble them.
"I was in a position to see exactly what happens in the human hand. I got the basics of what it's all about and thought yeah, I'll make my own."