Here’s a really fascinating circuit that implements a combination lock using relays and logic gates. Even with the schematic and written explanation of how it works we’re still left somewhat in the ...

Forget the combination to your combo lock? Well if you’ve got a 3D printer, an Arduino, a servo and a stepper motor handy — you can build your own Combo Breaker pretty easily. It’s capable of solving ...

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Surely the Master Lock Combination Cable Lock must be one of the world’s cheapest yet most useful motorcycle accessories? This is a basic, inexpensive cable with built-in lock. It’s easy to use and it ...

If you ever forget the combination to your bike lock, here's how to open the lock—without any tools required. A word to the wise: You might also consider getting a more secure kind of lock for your ...