Five-cent Tilt Sensor

Step 2 Build the cage

To build the cage, cut and strip some solid-core wire (I happened to have copper around), and solder into one of the boards to create corner posts. Shore up the cage by gluing shims at each corner beside the posts. These are cut from popsicle stick, because popsicle stick plus hot-melt glue was just think enough that the nickle could slide freely.