Here's a commercial version. [1]
This seems to be an exhaustive-search combination lock solver. Someone else has built one that not only manipulates the lock, but uses a contact microphone to listen to it. But I can't find the reference.
This seems to be an exhaustive-search combination lock solver. Someone else has built one that not only manipulates the lock, but uses a contact microphone to listen to it. But I can't find the reference.
>> half-digit tolerance
There is a big difference between 0.55digit tolerance (might be able to try two numbers at once with enough mechanical precision to the solver) and 0.45digit tolerance.