T4 Quadcopter 400

I think that the T4 Quadcopters by Brendan22 are great, specially the design of the arms. I printed a couple of Mini 315 and wasn´t able to fit my ESCs inside so I started modifying his design. First I modified the bottom tray to fit 4 30 Amp ESCs
http://www.thingiverse.com/thing:961740
Then I decided to use fasteners instead of zip ties because I needed easy access to the interior of the quad.
http://www.thingiverse.com/thing:1014627
Shortly after burning 2 ESCs I bought a 4 in 1 ESC and d