5-Pin Lock False Book Vault

They told me it wasn't possible to make a 5-pin 3-D printed cylinder lock. 

I told them to eat their hats. 

Presenting a fully-functioning 5-Pin Cylinder lock. Mounted in a false book vault because why not? 

The book vault has textured edges for that authentic pages vibe, and an option for a decorative cover. 

Important notes:

• Yes, it works. 
• The initial friction between the parts will take some wiggling and jiggling to overcome.  Graphite lubricant may help with this, though I haven't tried. You may think it's broken at first.
• This WILL print on an A1 Mini but you will need a plate per cover. 

Things I found worked best:

• Print the covers with tree supports (auto is fine), DISABLE “from build plate only”
• Print the pages with normal supports, ENABLE “from build plate only” 
• If you are printing on a “bed slinger”, print the pins with a brim
• For best lock action, print the lock plate at extra fine quality (0.8mm layer height) 

You will need:

• 5x 15mm-long springs. I've used a diameter of 2mm but 3mm might also work. 
• 6" of 3mm metal rod. You could probably replace this with 2" 3mm printed rods but alas I had the rods at home already.