CHAPTER 19
Wheels
At this point, you have some wonderful motors that are only spinning themselves. In this chapter, you’ll be introduced to a variety of wheels and some criteria to aid you in selecting a pair of wheels for the line-following robot.
Anatomy of a Wheel
Most wheels consist of two parts (see Figure 19-1). First, there’s the tire, which is the rubbery part that grips the surface. Then, there’s a sturdy core, which distributes the motor force and retains the wheel’s shape.
Figure 19-1. An ordinary wheel with the rim partially pulled ...
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