There are lots of ways to make different kinds of locks. In this B-Star Crafts woodworking video, a simple lock is made with four hidden neodymium magnets, gravity, and a concealed “key” of four corresponding neodymium magnets.
The video also demonstrates how this technique can be used for sliding drawers and doors.
Watch these related lock, magnet, and woodworking videos:
• How Do Locks Work?
• Making a combination lock from a steel bolt
• Making a Wooden Chess Set With Gear Hinges
• Magnetic accelerator demonstrations
• Extravagant furniture with secret panels, doors, and drawers
via The Awesomer.