|Project by JamesVavra||posted 05-25-2011 02:36 AM||16004 views||38 times favorited||38 comments|
One of the guys at the office asked me to make a box for his nephew. he only requirement: some sort of secret or trick locking mechanism. He and I brainstormed a bit and then I went home to make some prototypes. After he picked one, this is what I came up with.
The dimensions are roughly 9” x 7” and it’s 5.5” tall. The sides are solid maple and the top and bottom panel are maple ply. The miter keys and top inlay are bubinga. Finish is 5 coats of rattle can lacquer rubbed out with steel wool.
The handle is attached to the body with rare earth magnets. They are a bit proud on the handle and a bit recessed on the body, making for a very positive fit – it’s hard to tell it comes off and take a bit of force. Inside the mortise lock, there are two very small magnets that hold the catch in either the locked or unlocked position. The much larger magnet in the handle/key attract the magnet on the bottom side of the catch and allow you to move the catch between the two positions. The locking mechanism works very well. And aside from mis-positioning the hinges by something like 1/64th (and thus causing the lid to be just slightly skewed from the body), I’m pretty happy with it. If I had the time, I’d fill the hinge holes with maple dowels and try again, but I’m out of time on it.
One lesson learned: when working with hidden magnets, do not use steel wool. The little fibers are impossible to remove from a magnet. Sticky tape worked the best, but nothing would get them all off:
Thanks for looking – questions, comments, and criticisms welcomed.