Speeddial -codelock

My Blog entry:
http://marcuswolschon.blogspot.com/

Blog entry by Ax0n:
http://www.h-i-r.net/2010/01/review-master-1500id-speed-dial-lock.html

pdf explaining the mechanics:
http://toool.nl/Image:The_New_Master_Lock_Combination_Padlock_V2.0.pdf

animation by Michael Huebler:
http://toool.nl/images/e/e1/MhVisualizer_V2.0_p.swf

At Easterhegg last weekend I was introduced to this amazing lock (Master Lock 1500iD).
You can enter a combination of up, left, right and down -movements of ANY LENGTH to be your code.
This mechanism is basically a mechanical hash-function of the movements you do.

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This is a simplified demonstration-model to illustrate the code-mechanics.
It contains neither the actual locking nor the reset-mechanism nor the mechanism to set your own combination.

I just finished the design and did not print it yet. But I made sure it is printable.