I created a side cover for the ZMR250. It was a tight fit, but works well! There is a small gap between the side cover and the top frame near the FPV camera because of the piece holding the camera. Not much I can do about it. This won't fit if you have a Naze32 with pin headers sticking out the side. Solder the servolead for the receiver directly to the board. If anyone wants pattens or whatever, leave a coment so I can add them. Source is from Inventor 2015 (student edition). Print upside down (flip z-axis)! Have fun!