First prototype (P1) was developed for confirmation of performance of two drive wheels mechanism with the suction cup based on principles described at Chapter 2.2.
Fig. 2 shows the overview of the Pl. The P1 consists of two couples of stepping motor and wheel, one suction cup connected to a miniaturized vacuum pump, and control electric circuits. Electric power is supplied via cables. The total weight of the robot except power source is 1.9 [kg]. Each Specification is shown in Table 2. Vacuum pressure is controlled by manual.