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Amphibionics 05  3/24/03  8:44 AM  Page 130
                      FIGURE 5.18
                      Battery pack with
                      mounting piece                   Amphibionics
                      attached.

















                                          Constructing the Tail Section
                                          The snake robot will need a tail that will be used to brace the rear
                                          end  of  the  body  and  provide  friction  when  the  robot  is  moving
                                          forward and turning, as well as for the aesthetic purpose of com-
                                          pleting the body.
                                          The  tail  section  is  constructed  using  1/16-inch  thick  aluminum
                                          stock. Cut a piece 2-1/2 inches   8-1/2 inches. File any rough
                                          edges and place the piece on a table. Photocopy the cutting and
                                          bending guide in Figure 5.19. Use the photocopier enlargement
                                          feature so that the dimensions are exactly 2-1/2 inches   8-1/2
                                          inches. Cut the template out and use a glue stick to glue it onto the
                                          piece of aluminum of the same size. Use a metal cutting band saw
                                          or hacksaw to cut the piece, as shown in Figure 5.19. Drill the
                                          mounting holes as indicated, using a 5/32-inch drill bit. Bend the
                                          aluminum in a vise or on the edge of a table, as shown in Figure
                                          5.19. The finished tailpiece is shown in Figure 5.20.






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