Cryptex! by whowhatwhere

Last crawled date: 3 years ago

Very cool idea (not mine it was posted as a competition idea by Everythingmechanical http://blog.makezine.com/archive/2010/04/makerbot_giveaway.html)
Seemed easy enough to make a simple one so here it is.
2 part inner tube 2 part outer tube and a tumbler (you need 5 to complete assembly)
I've included the SKP file for those interested.
I'm still very new to 3d modeling and sketchup (learned a lot this past couple of weeks tho) so my images are still pretty ordinary.
If I get the chance I'll come back and do an exploded image to show assembly a little bit more clearly.
I assumed that glue could be used to attach the end caps to the inner and outer tubes but it would not take much to put in a small hold and use a screw (allowing the tumblers to be changed if wanted ( or taken apart of the combination is forgotten)
obvious improvements would be to alter the tumbler design so the actual value for each tumbler could be changed, etc.
I can see a few ways this might be done but none I'm terribly happy with right now.
UPDATE:Plate 5 v1.1
This is a modified tumbler with many pick groves to make it harder to use machine tolerance issues to determine the combination.
Plate 5 v1.2
This is a modified tumbler in 2 parts enabling the tumbler to be "re-configured" to change the values.