Abstract
In this paper, we develop a gear driven five-fingered robotic hand that fabricated by using 3D printer and can be easily assembled. This robotic hand uses series of gears to realize synergetic motions of the fingers. This hand can realize multiple grasps using a small amount of RC servo motors. We combine several parts into one to reduce the number of parts and eliminate screws from the hand to assemble robotic hand without using tools. We execute some experiments to confirm that the robotic hand can realize multiple grasps.