“This is a 3D printed robotic arm. The intent was to design something “easy” and cheap to built with a good visual impact also. Test video: https://youtu.be/qovZKW0DxWk , https://youtu.be/N55W8TdMfCo . I spent time to look around the web at some examples available that could be a good starting from, and between all I found interesting the phenoptix MeArm V4 project (http://www.thingiverse.com/thing:360108) especially for the simplicity and low cost of parts involved. So I kept only the kinematics geometry and redesign all parts including the gripper”