Another replacement frame for the Hubsan x4. Inspired by some of the other frame designs but with a few improvements, including stronger feet and a battery clip. Comes out weighing a few grams less than the original frame, but feels very solid.I had a file out the motor holders slightly to get the motors in, but that makes sure they are a nice tight fit. I couldn't get my circuit board to screw in, so ended up mounting it using a double sided sticky pad. You probably want to put a small piece of foam in between the battery and the circuit board. This will prevent the battery from being damaged by any sharp bits on the circuit board and also helps to hold it in place.