This is very brief introduction of the build own quadcopter. please visit 404warehouse blog for more details. English : http://404warehouse.net/2015/03/28/build-your-own-quadcopter-with-apm-and-dji-kit/ Korean : https://eastskykang.wordpress.com/2015/04/10/build-my-own-quadcopter-with-apm-and-dji-f450-flame-wheel/