My daughter likes to keep her trinkets locked away, so I made her a combination lock safe. It took a few tries to design a functional dial lock, but I came up with a design that is very stable.
The combination is three numbers, so you have to turn clockwise to the first number, counter-clockwise once around to the second number, then clockwise to the third. Then the latch can open.
I used a different kind of joint for the sides which is a lot stronger than the typical finger joint. After all, this is a high security item.
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