Quadcopter 250 DIY

Based on [Firefly Pro](http://www.thingiverse.com/thing:1163884), I modified some parts to make it more stronger and easy to change part in case of crash.

Total weight with electronics elements : 565g

I use 1500 mAh battery for approximately a 7-8 minutes flight.

First flight : https://www.youtube.com/watch?v=jp49YJ3y4qo