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Chapter 17: Solving a Maze > Building a Maze Solver

Building a Maze Solver

To overcome the limitations of the Maze Runner and its “left-side rule” tactic, and to solve the more general case of a labyrinth with an entrance and exit at two arbitrary points, we designed our own Maze Solver.

Constructing the Maze Solver

In Figure 17.13, you can see we changed our approach somewhat. We added a third motor to allow rotation of the US sensor so that we can scan in all three directions. The construction is again modular—the three motors and the back wheel caster comprise one module, the sensor with its rotating gear is another, and the third is the NXT brick mounted on top.

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Figure 17.13 The Maze Solver

Figure 17.14 shows the rear side of the Maze Solver. The two driving motors are held together with an 11-stud beam and a 10-stud axle, also holding the third motor and the wheel caster.


  

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