PROJECTS: BAJA BUGGY
3c. To install the 9V battery holder,
first sand off about 5" of its bottom
end. This ensures that the battery will
fit flush inside, and that the holder
itself will fit evenly and spaciously
between the rear wheels.
3d. Drill a hole in the center of the
battery holder the same diameter as
the hole you drilled in Step 1b. Then
rivet the battery holder to the motor/
gear bracket housing.
3e. Extend the battery holder’s positive and negative leads by soldering
24-gauge wires to them, long enough
to comfortably reach J4 on the motor-control circuit board. Solder a 2-pin
male connector to the ends of these
wires, which will allow you to disconnect the 9V camera battery from the
circuit board as needed.
3f. Using a small piece of double-sided tape, attach 1 servomotor to the
motor-control circuit board as close
to the motor/gear bracket housing
as possible. This servo will be used to
pan the wireless camera that will be
mounted on top of it.
The servos come with an assortment
of lever arms that can be attached to
them, depending upon the application. Use the circular lever arm on
the camera servo.
3g. Next, attach the other servo to
the chassis just in front of the circuit
board (the location is shown in Step
3e). This second servo will be used
to steer the buggy.
102 Make: Volume 14
NOTE: To rivet, insert a
rivet through the hole,
and then squeeze with
the pop rivet tool until
the shaft pops off. To
remove a rivet, drill it
out using the same bit
you used to drill the