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243_masterpieces_03.qxd  4/18/03  7:02 PM  Page 128




           128    Masterpiece 3 • The LEGO Turning Machine

            Direction Control II Step 3
                                                            Because the motor in the Lego
                                                            Turing Machine does not have a
                                                            large load to bear, it does not
                                                            require an extraordinarily strong
                                                            mounting. You’ll notice that this
                                                            motor mount is lighter and simpler
                                                                 than the typical motor mount.












                  Direction Control II Step 4
                                                                   The touch sensor requires a base
                                                                   and support structure of bricks. The
                                                                        touch sensor will be pushed
                                                                        several times. The extra bracing
                                                                        and support will keep the touch
                                                                        sensor from moving out of
                                                                             position.












                                             Direction Control II Step 5
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