A case to hold a FatShark 700 tvl camera and an ImmersionRC 600 mW transmitter on the front GoPro mount of a 3D Robotics Iris. The transmitter box has front and rear cutouts to promote airflow. The transmitter is held in place mainly by the antenna. The camera is mounted using the metal bracket that came with it. A slot is provided for a nut for a 1/4" #4 screw. It is easiest to put the camera bracket on with the camera dismounted. Use an M5 or #10 screw for the main GoPro attachment.Best to print with the front wall (the one with the cutouts nearer to the antenna exit hole) down.