3d printable Robot arm See the hackaday project page https://hackaday.io/project/3800-3d-printable-robot-arm and http://www.chaozlabs.de/ for more infos.
This is the latest version of my Robot Arm project. The Current version is Called Mantis.
I do a video series about the build:
https://www.youtube.com/watch?v=Sz4pLQS5GgY
You can find infos about the gripper: http://www.thingiverse.com/thing:1480408