Parametric tricopter frame + tail mount + servo gimbal

Ever since the first design: http://www.thingiverse.com/thing:590921 I wanted to design an as parametric as possible tricopter frame and accesories, and I finally did. Now anyone can introduce its own variables and generate a tricopter that fits ;D.
It doesn't matter what size of boom you want to use, neither the tail servo, just introduce your characteristics and you'll be fine.