The movement of the arms is controlled by the gearing system inside the power window housing. The ability of this movement depends on the DOF of each connection. Each movement starts from 0 degree until 90 degree DOF. Fig. 8 shows the 3D design of the actual artificial arm and the limit of movement of the artificial arm. Fig. 8 (a) shows the movement of the hand from 0 to 90 degrees. Fig. 8 (b) shows the movement of the shoulder from 0 to 45 degrees and wrist movement from 0 to 45 degrees. Fig. 8 (c) shows the normal position of the artificial arm. The controllability of the arm movement also depends on the ability of the power window motor located on the elbow. Although the weight of the arm is quite heavy (1.5kg), the motor which is powered with 9 V of power supply and the side gears in the motor casing permit the arm to move to a maximum of 90 degree position as shown in Fig. 8(a).