Intro: 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.
Step 1: Laser Cutting
Get a 5mm wooden board first and cut it through laser cutting.
Step 2: 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.