8. Project: Ball Contraption

Ball contraptions are popular projects in the LEGO community. They are machines that continually cycle LEGO balls through a series of conveyors, chutes, and other obstacles simply for the fun of it. This chapter’s project is just such a contraption, and you can see it in Figure 8.1.

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FIGURE 8.1 The ball contraption moves a ball around a course. But how could you make it better?

After you’re done building and programming the robot out of Mindstorms parts, you put to use the skills you learned in Chapter 7, “Hacking LEGO III: Create Your Own LEGO Parts,” by designing and manufacturing two different add-on parts, one ...

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