I wanted to build a micro FPV quadcopter, but I couldn't find any 3D printed frames that were exactly what I wanted. I decided to design my own! My goals were to keep it crash resistant, light weight and offer good protection for onboard gear.
It measures ~105mm (diagonally motor to motor) and weighs ~38g without the battery. It is designed around 8.5mm motors and the Micro Scisky flight controller. The camera mount is angled up 13 degrees to accommodate fast forward flight. I also include two other top options for mounting the camera level and pointed down 7 degree.
Antenna: I used the inner wire from the coaxial cable of a broken clover leaf antenna. I used the default frequency on the FX758-2 which is 5865. After soldering the wire on, I cut the antenna to 12.8mm which is the quarter wavelength of that frequency.
Battery: I use a mix of a few batteries. 380mAh Hubsan, 500mAh Hubsan and 300mAh Nano-Techs. CAUTION: When using the Nano-Techs, make sure the battery polarity is correct. I have had to switch the connector position on these.
Props: I am currently using Ladybird props. They hold up a lot better than the Hubsan props.
Printable Standoff And Clip: As an alternative to using nylon hardware, navyblueboss made a very nice pin and clip set. I have not yet printed a set of these but they look great.
JST SH Connector: A JST SH connector can be used to get get a 5v supply for fpv gear straight from the Scisky. CAUTION: I managed to fry the power supply on one of my Scisky boards. Other users have reported the same when using the FC to power FPV gear. Another option is to use straight battery power or a voltage regulator from battery for VTX and camera.
5v Step-Up Voltage Regulator: Use a pololu 5v step-up instead of the JST SH connector to avoid burning up the voltage regulator on the Scisky.
The Micro Scisky has a built in DSM2 reciever. Here are some compatible radios.