Quantity   Component name
4 × Stepper motors + shields You can buy it there : https://www.amazon.fr/gp/product/B01IP6RBJS/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A32A9PQZI4U6P4
1 × Arduino Leonardo card
1 × Micro-USB Cable
1 × Alimentation cable To power the motors
1 × Medium board For the box
1 × Polystirene Or something else, not electrically conductive, on which you can stick shields and arduino card
1 × Glue To stick everything to the box
1 × Painting ? (optional) If you want to customize your box