About this 3D model

The original design of the quadcopter "Crossfire" by MikeyB only has a generic top plate as well as one with holes for diagonally mounting a controller board. But the very popular KK2.0 board has to be mounted orthogonally (that is facing with an edge to the front instead of a corner). So this thing is a modified top plate for mounting an orthogonal controller board such as the KK2.0 to an X-style Crossfire.