The Roller Coaster (set 10261) is one of the best sets LEGO has ever produced. Anyway, the coaster has some small problems that can be overcome with some genuine LEGO Mindstorms EV3 automation components of the shelf. It is even possible to have three sledges running at the same time!

Check it out in the video:

Automating the LEGO roller coaster (set 10261)

Enjoy!

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