Page 26 - LEGO MINDSTORMS - Robotics Invention System-2 Projects
P. 26
Robot 1 • The Bug
Right Wheel Step 0 Right Wheel Step 1
The pulley wheels act
as a spacer to prevent
the rubber tire from
rubbing against the
motor mount. They
also act as a bearing
to carry some of
the weight of the
robot. A bushing
could do the same
thing, but the pulley wheel
spreads the weight out over a
larger area. This makes it less
likely that the forces will
damage the robot.
Right Wheel Step 2
The yellow plate is on the bottom and to the
right of the gray TECHNIC plate. It’s
used here because there are not
enough 2x4 TECHNIC plates. It
also adds a nice splash of
color to the otherwise gray-
and-black assembly.
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