Building Robots With Lego Mindstorms

466 Chapter 23 • Drawing and Writing

of previous chapters (the Maze Solver and the Tic-Tac-Toe machine), but it does

demonstrate once more that by reevaluating the terms of a problem, you can find

an easier solution. For example, a Tape Writer built with a technique similar to

the Maze Solver would have required very long rails; so, moving the paper instead

of the robot, your construction results in a more compact design that is also

capable of writing texts of unlimited length.

In the suggestions we provided at the end of the chapter, we described the

possibility of emulating handwriting using an arm similar to the one used in the

Broad Blue robot descr ...