1st Sketch

Here's our first sketch of Trevor.
We decided to equip Trevor with three wheels to ensure a good compromise between stability and connection to the ground.

V0.1 : the initial shape is a circle. There are two driving wheels at the back and one wheel at the front.
The front side and the back side can be swapped allowing Trevor to progress forward or backward.

V0.2 : we decided to change the shape of Trevor to an ovoid shape as an anti-block system. The anti-block system is supposed to allow Trevor to change direction when he will meet an obstacle. The anti.block system should not use any electric power.