This is the printable, locking mechanism for the D.I.Y Hidden Survival Gear Safe using tin cans. A survival cache like this is great for keeping valuable items hidden in plain sight. Here is the full video on how I made it: https://youtu.be/1GhfcO3t5DU

Note: Only tap the hole through the first half of the part. The hole needs to be opened up with the proper size tap drill before tapping. Again, drill the tap drill through the first half of the part only. I modeled the pilot hole all the way through the part, but it is only needed through the first half of the collar.