Concept: STANC3Y
Here is a robot that can transform from a skier into a futuristic snowmobile! It uses the two caterpillar tracks of the original EV3 and the motor and hub from the new mindstorms. I wanted to have a model without "tank steering" so there is only one motor for propulsion (1) placed between the two caterpillar "skis". Motor (2) controls the forward stance and motor (3) rotates the upper body. The arms are fixed at right angle and can be extended with static beams as ski poles to "press" in the opposite direction of rotation if the weight shift is not strong enough to press on the inside track. One could think of a nice STEM progression first with the poles, then no poles, then using the gyro to control (3) to keep moving straight.
The "backpack" motor (4) is only used with (2) and (3) to fold the skier into a somewhat clunky snowmobile :) The steering is again done by pressing on the outside of the curve and lifting the outside track.
Hope you like this concept and its originality !
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