This is an acrylic model of a typical combination lock as found on bank vaults and safes, made from laser-cut acrylic. The model,reveals three inner wheels that turn along with the numbered dial on the outside.
But the wheels only turn in unison when small pins on each one align in a specific pattern, dictated by the lock’s combination and how you turn the dial back and forth.When all three wheels are properly aligned, notches on each one also align.
Releasing a locking mechanism that allows the lock to pop open.The lock’s mysterious inner workings were always hidden away under a metal case, but this clear plastic replica finally reveals what’s going on inside.
The internal workings of a combination lock are beautifully clever, and satisfyingly easy to understand, once you can see how they work. Students will enjoy knowing how their lockers work!