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11
                                 /
                                 64
                                                                                 Servomotors:
                                                                                 H5300, 42 oz
                                      1 / Ø
                                        2
                                 Servomotor &       L          R
                                 hole placement


                                                                             8" (203 mm)


                                                          (59 mm)
                                                            5
                                                           2 / "
                                                             16
                                                                         3 / "
                                                                          16
                                                       11 / Ø           (5 mm)
                                                        64
                                                    bracket holes
                                 (25 mm) 1"         for third center
                                                    servomotor
                                                1 / Ø
           238                                   4                                Pivot holes
                                                                                  for back
                                        2"
                                     (51 mm)
                                                3 / "      (25 mm)  3 / "
                                                                    4
                                                 4
                                             (19 mm)            (19 mm)

                                                           3"
                                                        (76 mm)
                                  11.7 Main body

                                collision sensors as well as providing the ability to walk backwards
                                and turn.

                        Construction

                                For the main body I used a sheet of aluminum 3" wide, 8" long, and
                                0.032" thick. The servo motors are mounted to the front of the body
                                (see Fig. 11.7). The drawings of the servo motor holes shown should
                                be photocopied and taped to the aluminum sheet. The photocopy
                                will provide accurate hole locations for mounting the servo motors.
                                         11
                                The four  / 64"-diameter holes a little past halfway down the main
                                body are for mounting the center servo motor. These four holes are
                                                       Team LRN
            Chapter eleven
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