Lego EV3 Vehicle

Griffin designed a vehicle with his Lego EV3 set that uses motors, gears, and the touch sensor. It uses components from other sets including most of the gears and wheels. Griffin does not like to build the projects in the book. He always likes to invent his own.

Griffin started by building a car with the programmable brick and a set of wheels. His dad says this part isn't constructed very well, and he agrees but doesn't care. The main car is followed by a trailer with the other large motor and the medium motor. The medium motor spins a set of small gears on the back. The large motor spins a rotating brush which also moves up and down through a gear system. When the touch sensor is activated, the drive motor does 5 rotations backwards, then stops. The medium motor runs 5 rotations, then stops. Then it plays some sounds and charges forward at full speed until it hits an object with the touch sensor again.