This is a bottom frame and motor support for the CJMCU quadcopter that is available at Goodluckbuy.com http://www.goodluckbuy.com/micro-quadcopter-flight-driver-controller-9dof-9-axis-altitude-sensor-stm32f103.html
The frame only weights 3 gram.
Best printed in 0,1mm layer height with PLA
CJMCU_Frame.3.stl | 624.7KB |