This is the main frame for a 150 class quadcopter. Unlike many that are made from 3mm material, I have chosen 2mm for it. The smaller and lighter these machines become, the less mass is need to be "bullet proof". The frame is sized to accept a NAZE32, CC3D, or CC3D Atom flight controller, and 35mm x 35mm Power Distribution Board.

With 30mm standoffs (4 req.), there is room for a 1/3 SONY Super HAD II CCD camera.

Motor arms will accept 1104 - 1306 motors with a four bolt circle of  9-12mm diameter.

10A ESCs will fit on the arm between the motors and flight controller.

3" diameter is the maximum propeller size.