Building a 3D model

We designed the new version of Trevor using a 3D modeling software (CAD: Computer-Aided Design). We used "Solidworks" to achieve this task. Solidworks is a very intuitive and easy to use software. We 3D-drew all the parts of Trevor then we assembled them (virtually).
The result of this work is:

The main parts of Trevor are:

• a chassis - this is Trevor's skeleton
• 3 wheels - 1 front (motion and direction), 2 rear (stability)
• 2 front sensors - switches - when one of the 2 sensors hits the wall, this launches a specific series of actions
• 2 motors - the first one is use to get the front wheel in rotation, the second one rotates the front wheel (direction)
• a main board - to program Trevor's conditional actions
• a battery case - to provide electric energy to Trevor (motors and main board)
• electric cables to connect them all ...