Slightly improved Ice-based timed lock. Compared to the original this one has:
Freeze the pin in the body, and at room temperature, it will take 2-3 hours for the ice to melt enough to release the pin. It's a nice alternative to cobbling together an electromechanical timed lock, and more reliable as you're not in a freezer :P
nIceLockBody.STL | 2.8MB | |
nIceLockKey.STL | 746.1KB |