When i started this hobby, I always wanted to 3d print my own drone. This is a very simple and lightweight 3 inch toothpick frame that works super well with all in one boards. 

Parts :

Filament used :

-for a minimum strength, PETG-CF or stronger (PA12-CF or PA6-CF)

Fasteners : 

• -2mm screws,

• -20-25 mm length,

• -2mm hex nuts,

• -2mm silicone dampeners,

• -For a Canopy, I used the Vision40 canopy by RotorRiot, it should be in Printables.

Electronics :

• -25.5x25.5 AIO all in one FlightController, 2-3s 15A minimum,

• -1303 -1204 sized motors, 2-3s, i used 1204 happymodel 8000kv motors, works well,

• -Any 3 inch tri-blade propellers,

• -For a vtx, any small 25.5x25.5 board will do, i used the walksnail 1s mini lite, it worked perfectly,

• -For a receiver, it has place in the canopy to sit in, I used an EP2 receiver,

• -XT30 plug and 18-16  gauge wire for power. 15V 250-400ish uf capacitor will do just fine.

Battery :

• 3s or 3s lipo battery, from 450-550mah, I used a thin battery strap that loops underneath the frame.