Quantity   Component name
1 × PLA printed gears It depends on what kind of gear you want to classify. In this ocation we used 12, 14 and 16 tooth, with different diameters.
1 × Webcam There's no special requirements for this one, since you have to calibrated anyways.
1 × Conveyor belt For this one we used a 810mm long and 100 mm wide, 12V DC motor and H bridge
4 × Boxes We made a paperboard box in order to join the camera and some lights. Also, some little boxes to separeta classified gears
1 × 5V Power supply To feed Arduino and electromagnet
1 × 12V Power supply To feed DC motor
1 × Arduino UNO
1 × Sensor shield v5.0
1 × 6V Electromagnet 25N
1 × Standard Relay As an on/off current for electromagnet
1 × DC motor For conveyor belt, if you need to fabricated
1 × H bridge 12V, used for conveyor belt
3 × MG995 Servomotor To assembly MK2 arm