This is a canopy / electronics box for an F450 or SK450 quadcopter. It has pre-cut out areas for a pixhawk or APM usb, LED and switch extensions.I printed it with a dual extractor at .15 25% fill with a raft. I have printed it with no raft and the corners seemed to sag a little. This fits perfect to your quad you might want to have a slightly longer cap screw that goes into your arm as this borrows it. The switch just plugs right in, the led you just need to add screws. The USB might need a little wallowing out or move the holes inward 0.2mm. I used a black ABS to print most of the body and the skull and the crossbones in white ABS. It took 7 hours to print it using makerbot software. Without the dual extrusion I think it will take about 4 hours.