We wanted to test a design principle so we came up with these miniature 3D printed Ninja Flex hands, that print in one part. We've made our designs open source so you can make them too > http://www.thingiverse.com/thing:739806 Enjoy!
The Open Hand Project
Our successful crowd-funding campaign to develop affordable robotic 3D printed prosthetics that are open source so a global community can help solve the problem of expensive robotic prosthetics. > http://www.thingiverse.com/thing:287638