David Hyman, the MOCpages user's robotic hand with exoskeletal controller surely beats the Lego printer we saw other day. The very ambitious Lego robotic hand is controlled by a wrist mounted exoskeleton that has 3 rotation sensors and 2 touch sensors. Having two fingers and a thumb, the hand was built using 3 RCX bricks . And, because each uses rack and pinion movement, it moves the flexible tubes that are attached to the fingertips. The hand can easily hold and manipulate balls and other objects. However, what you need to take care is that you hold your hand steady, as the robot will copy you, wearing the skeletal hand to control the robotic hand. The feedback that the hand receives is with the help of light sensors and a gradient that is attached to a toothed rack.


via: Makezine