Glad you enjoy my locks :) Making locks is very interesting, but it reminds me of why they say you shouldn't write your own encryption. Even if the theory is sound, it just takes one little mistake for someone to bypass all your grand designs...
P.S. I used to work as a retail educator at MakerBot, while you were with FormLabs. SLA always blew my FDM centric mind
But yes, don't use it in production before the LockPickingLawyer took a look at it.
After all how would lock picking lawyer measure the magnetic strength of the pins?
After all, even a physical lock is just a combination lock. The combination is just 'encoded' in a metal strip. Or in the above case, with magnets. And it's still possible to copy the key by reading it.
Better to use a digital key with asymmetric encryption. Using that you can prove you have a private key without actually giving up the information needed to fabricate a copy.