About this 3D model

I'm a STI2D student at Mermoz High School, and i have a project who is a portable visualizer, to be more practical and easy-to-use for everybody and be eco-friendly because it's made with only cardboard.My prototype of the visualizer is easily to assembled. The head is foldable and flexible.You have on the board, one button to enlarge the arm and you have a USB plug to connect the visualizer with a computer.