The Helping Hand

The Helping Hand is designed to help build a deeper understanding of science and engineering by acting as a functional model of a human hand!

While the Helping Hand is not a perfect replica, it is designed to help foster an understanding of how a real human hand works. Each finger has two Lego strings attached acting as artificial tendons to facilitate flexion and extension of the fingers. Each tendon works its way down the length of the finger and through the palm of the hand along the corresponding color channel. The color channels help identify which tendons operate which fingers. Anyone can act as the "muscle" by choosing a desired tendon, pulling it, and watching their chosen finger move! The thumb is articulated as well, but must be posed separately.