Here are some RC Quadcopter frames I designed a while back. None of these have been tested, just played around with designing for a while. Here are photos of the designs I have made. https://jtice.smugmug.com/RC/MultiRotor/Frame-Designs/ Downloads for files can be found here. http://jtice.com/downloads/multi-rotor/
![](http://www.jtice.com/wp/wp-content/uploads/2016/09/Quadcopter_H-257_V4_3D_withComponents-L.jpg)