Feather 3 Ultra-light FPV Toothpick Frame

This is a 3 inch FPV toothpick frame made of 3D printed part and square carbon fiber tube, aiming for minimal weight and feather like flying experience. The frame is about 5g and my build weighs under 30g.

Materials and assemble:

1. Square carbon fiber tube 3mm*3mm.  Cut two of 117mm long pieces for the 3 inch build. You can also make other sized frames (For example cut two 99mm long for 2.5 inch build). 

   *Be careful with the dust when cutting carbon fiber tube. I cut them under water flow in the sink.

2. Print the motor mount and FC mount with PLA/PETG/other. I used Sunlu PLA+ 2.0. Motor mount fits 6mm pattern tiny whoop motors. Use m1.4*3mm motor screws. FC mount fits any 25.5*25.5 AIO. Use m2*8-10mm screw for single layer AIO.
3. Print the battery mount with TPU 95A. Potentially also print the canopy if you don't have one. Suits 1s 450mAh battery.
4. Put the carbon tube through FC mount and battery mount. Put motor mounts on the end of each arms. They should fit rather tight. Make sure the carbon tube is centered, glue the joints with some CA glue.

5. Electronics. 

   FC: Any 5in1 whoop style AIO. I use Happymodel X12.

   Motors: 1002, 1102, 1003 or similar sized motor. I use Rcinpower 1002 14000kv. 

   Props: 3 inch 2 blade. I use GF3018.

Good luck and fly safe!