Ever seen a lock with a round key and thought what wizardry it is? That’s a tubular lock, although some folks call it an Ace, ...

How to Make Fully Functional Lock from Cardboard Today I show you how to make fully functional lock model. This lock can be ...

If you are smart, you wouldn’t hand your house key over to a stranger for a few minutes, right? But every time you use your key to unlock your door, you are probably broadcasting everything an ...