Page 190 - Robots Androids and Animatrons : 12 Incredible Projects You Can Build

center of the hole needing to be drilled. Hit the center punch
with the hammer to make a dimple.
Hand shears. Used to cut sheet metal. I would advise the
purchase of 14″ metal shears. Use like scissors to cut metal.
Note: Metal is a lot harder to cut than paper.
Nibbler. Used to remove (nibble) small bits of metal from a
sheet. Used to nibble cutouts and square holes in light-gauge
sheet metal. Note: Radio Shack sells an inexpensive nibbler.
Vise. Used to hold metal for drilling and bending.
Drill
Hammer
Most hardware stores will carry these simple metalworking tools.
They will also carry the light-gauge sheet metal and aluminum bar
needed to make the chassis.

1
1
I built my chassis out of ″ ″ aluminum rectangle bar and 22-
8 2
to 24-gauge stainless-steel sheet metal. Stainless steel is harder to
work with than cold-rolled steel (CRS), and if I had to do it over
again, I would use aluminum or CRS.
Drive and steering motors
169
The drive motor is a 100:1 gearbox motor (see Fig. 8.1). I like this
gearbox motor because it has a motor mounting bracket. For the
steering motor I used a standard 42-ounce (oz) torque servo motor.
There are three pieces of sheet metal one needs to fabricate.

8.1 100:1, 1.5- to-3.0 VDC gearbox motor
Team LRN
Behavioral-based robotics, neural networks, nervous nets, and subsumption architecture