The Afromini version of the Naze32 is extremely compact. It is also very hard to mount in a standard 50 mm standard controller stack. This design is a simple and lightweight mounting plate that provides just that ability. The controller is simply mounted to the holder using a few zipties. In the picture of an installed afromini, there is a miniature receiver mounted in front of the controller. As can be seen both the receiver and the controller fits. I have also made a variant with integrated LED holders. That one can be found here: http://www.thingiverse.com/thing:693234