Make: Volume 90

3. GLUE THE SPRINGS

Hot-glue the springs into their holes on the inner

piece, then into the outer rib plates (Figure

B

).

4. ATTACH SERVO HORN AND WIRES

On the long symmetrical horn that came with

your servo, screw a tiny M1.2 screw into the third

hole on the inside of each arm. Then attach the

horn to your servo.

Cut a length of 24 gauge wire long enough to

be folded in half and reach from the tiny screw to

the very outer edge of your assembly. Twist this

wire around the tiny screw on the server horn,

making sure it can’t slip off the head but is still be

loose enough to rotate freely around the screw.

Repeat on the other side (Figure

C

).

5. ...