Page 148 - Amphibionics : Build Your Own Biologically Inspired Robot

Amphibionics 05 3/24/03 8:44 AM Page 127
Chapter 5 / Serpentronic: Build Your Own Robotic Snake
Take the circular, 1-inch diameter servo horn that came with your
servo and line the middle mounting hole up with the 1/4-inch hole
in piece C (see Figure 5.11). Mark the position on the servo horn
where the two mounting holes line up, and drill them out with a
5/32-inch bit, as shown in Figure 5.13. Follow this procedure
until a total of six servo horns are complete. Mount each of the
completed servo horns to the six servo linkage pieces (marked C)
using two 6/32-inch 1/2-inch machine screws and locking nuts
per linkage, as shown in Figure 5.14.
Cut six pieces of 1/16-inch thick aluminum to a size of 3-1/4 inch-
es 1/2-inch and drill as indicated in Figure 5.15. These six
parts are identified as piece D, and are used as mechanical link-
ages to join each of the robot’s body sections. Next, cut six pieces
of 1/16-inch thick aluminum to a size of 1-1/2 inches 1/2-inch,
identified as piece E in Figure 5.15. Drill and bend each of the six

FIGURE 5.13
Servo horn with
mounting holes.

FIGURE 5.14
Servo horn attached to
servo linkage.

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