My second quadrocopter, again based on NG HW 0.22 with 1cm aluminium frame. The Centerplate is the concave Centerplate from the CAD section made with 1.5mm CFK. I also improved several other things compared to my first quadrocopter, about which I wrote an entry in my Blog.
~900g (with Zippy 2650mAh battery)
Alu-Cross 1cm, with concave Centerplate
Turnigy 30C 1x4500mAh (390g), 2x3300mAh (290g), 1x2650mAh (240g), Zippy 30C 2x2650mAh (240g)