Fun Projects for your LEGO MINDSTORMS NXT!

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Ball Roller Coaster
Building: Advanced
Program: Easy

LEGO Mindstorms NXT Ball Roller Coaster

This Ball Roller Coaster will keep two balls busy rolling down the track over and over again.  The ultrasonic sensor tells the NXT when to use the lift motor to lift a ball back up to the top of track, so the roller coaster operates fully automatically on its own. 

If you have a good supply of extra parts, then this project has a lot of potential for additions and extensions.  How big and interesting of a track can you make?

Video (YouTube) Video

Building Instructions



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