Ultrasonic Ranger Robot
Watch VIDEO first.
This is a small robot with wooden shell. It would shout at you when you get close to it.
Laser Cutting
Get a 5mm wooden board first and cut it through laser cutting.
Assemble the Shell
Fix hinges and magnets with screws as picture shows.
After fixing them you can fold this box perfectly.
Then fix the trimming with rivets.
Electronic Modules
Firstly, you should get following modules.
Connect these modules with controller board as picture shows.