Page 191 - Robots Androids and Animatrons : 12 Incredible Projects You Can Build

1
/ "
8
8
NOT TO SCALE 2" hole 1 / "
L channel
U channel

1" Bend
90°
Gearbox
motor
2" Holes
1" for
Wheel servo
2" Ø horn

Bend
90°
U channel wheel mount

170
Holes to
match holes
in L bracket

5 / "
1 / " 8 1 / "
4
8
1:1 SCALE
8.2 U channel wheel mount detail

The U channel (see Fig. 8.2) holds the front wheel and drive motor.
The U bracket is fabricated from 22-gauge, 1″ 5″ sheet metal.
Three holes in the center area are drilled to mount the servo horn
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from the servo motor. The center drill hole ( 8″) is larger than the
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two outer holes ( 16″). Remove the servo horn from the servo motor
by unscrewing the center screw and pulling straight up on the horn.
Line up the servo horn on the bracket and mark the center and two
outer holes. Drill the three holes. Mount the servo horn, using the
center servo motor screw. For the outer holes use two 0-80 machine
screws and nuts. Drill three 8″ holes for mounting the L bracket to
1
1
the side. Drill the two axle holes for the front wheel. Use 8″ holes.
Team LRN
Chapter eight