3D-Printed lock cracker takes only 30 seconds to get it done

Combination lock users beware, this lock cracker designed by Samy Kamkar takes a mere 30 seconds to bust open your standard combination locks - as long as you've picked the first number manually.

With instructions posted up online on how to print one for yourself, this contraption will set you back around $100 from start to finish - not including the few thousand dollars spent on a 3D Printer.

Although not extremely useful, Samy has helped display the diversity of a 3D printer and also a design flaw that Master locks might want to fix.