Page 181 - LEGO MINDSTORMS - Robotics Invention System-2 Projects

Robot 5 • The Three-in-One Bot

The Caster Wheel

This is the caster wheel sub-assembly that gives the robot its great maneuverability, which is so
important for line following.

Bricks & Chips…
Building Caster Wheels

There are many ways to build a caster wheel. However, do not use a
coupled caster wheel, as Mario Ferrari pointed out in his book Building
Robots with LEGO MINDSTORMS. For this robot, it’s best to use only a
single, freely rotating wheel.

Caster Wheel Step 0 Caster Wheel Step 1

Start by building the
caster sub-assembly.

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