
11
zippy-bot
Vehicles are one of the most popular types of
NXT creations because they’re easy to build
and fun to watch. Since they are also excel-
lent introductory robots, our first project is a
simple vehicle called Zippy-Bot (Figure 11-1).
If you like fast robots, this one won’t disappoint
you! Two motors with attached balloon wheels
drive the small robot, and a ball caster (which
we’ll discuss later) supports the robot in the
back. You’ll also notice two angled beams on
the very front, which prevent the robot from
tipping forward. In this chapter, you’ll build
Zippy-Bot and then program it to perform
some basic maneuvers, testing it throughou ...