Building Instructions

Chopp3r – a Lego Mindstorms EV3 helicopter

Chopp3r – a Lego Mindstorms EV3 helicopter

CHOPP3R is a search-and-rescue helicopter made from a single 31313 Lego Mindstorms EV3 set. I built this as a potential model for a book, but as the book has not materialised I decided to publish it instead! CHOPP3R has working top and rear rotors driven my a medium motor. It searches for a liferaft containing(…)

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LEGO Street Sweeper Building Instructions

LEGO Street Sweeper Building Instructions

This LEGO Street Sweeper drives around and avoids obstacles while sweeping your floor (well it tries to anyway). It is a rear-wheel drive and rear wheel steering vehicle. The drive and steering motors are Power Functions, and the NXT controls the motors via a Mindsensors NRLink. The Mindsensors SumoEyes detects obstacles in front of the(…)

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