When deciding what to do with my time between jobs, I had an opportunity to stoke a desire I have had for a long time- build an open source robotic arm and give the design to the world. Unlike other robots (drones, self driving cars, 3DPrinters) robot arms are delightfully general purpose. They can flip pancakes, draw a picture or assemble another robot. As I talked to people and thought about my plans, I realized that nobody wanted my open source arm… it would probably be hard for people to replicate and may have design errors that would frustrate future builders. As, I thought more about it, I decided that rather than just building an arm, I would attempt to build a community where we can share ideas and build a much better arm that can be replicated by anybody, anywhere… and build an arm for myself too. Welcome.