Purchase: - 4 mm socket head M3 screws (16) - 8 mm socket head M3 screws (7) - 20 mm socket head M3 screws (12) - led holder
When screwing the electronics together (the Android tablet, Arduino Mega, and USB host shield), make sure to leave a 2mm gap between the tablet and the Mega so that the tablet still slides into the top body panel properly.
The front, right, left, and top body panels are combined into a single part to make the final result stronger.
The heels screw into the batteries in the feet.
Instead of a power switch in the right body panel, a led with an led holder was used.