Cherry Tetra keyboard idea Free 3D model

3D : http://goo.gl/dB9dPx

smallest and wireless mechanical keyboard using what i called "grey switches" a very small version of the black ones, here is how they work http://www.youtube.com/watch?v=AUh8GjNunO4 measuring 10x10x8mm but the cap can't be changed with 3 "layout keys" that change every other keys functions so 72x4=288 "keys" in 175x80x12mm shroud around is removable to clean everything, and replace the batteries