External control mod for Belrius's CCG box
I really like the simplicity of Belrius's original design, but thought it would be nice to control the open and close mechanism by extending a slide out through the face plate. The STL has the objects required for one face. You can easily print this out twice to replace both.
Additionally, you might want to make the knob slightly larger in diameter so that it covers the entire slide opening. I didn't do that for this one, but it's an easy change.