Low cost automatic combo dialer
The device is made up of a solenoid with a very common clip on the end, and a simple motor with a modded attachment to grip the lock dial. This linked to a power supply and a computer and it will go through possible combinations. It also demonstrates how easy (if not amazing laborious) it is to get into a combo lock. Its simply just a finite amount of 3 numbers. The vid shows how the code can be sussed out just with a bit of time.
http://students.olin.edu/2013/jnoglows/ ... Video.html
Worth a look. Enjoy!