This is a remix of stylesuxx's great ducted micro cheeseframe.
I made this after testing his frame wich blew me away. A few hours later i was ordering a slight bigger flightcontrol board wich did not fit the cheeseframe.
I made the walls even thicker - 1.2mm seems to be perfect rigid for this case.
The ducts have less but bigger holes, this might decrease the disturbance wind causes on ducted frames even further.
This frame has a low profile between the ducts and should generate nearly no air resistance.
Print it with 100% infill. You can print it pretty fast with still good results.
It will fit 8520 motors and 50mm props.
Do not forget to break in your motors. (Around 1 lipo pack at min throttle, best way to do is on motors tab in betaflight configurator)
(Links to banggood)
Flight control board:
Omnibus F3 with OSD and RX
Motors Racestar 8520
Propellers 3 Blade
Lipo battery 650mah 25 C including USB charger (higher C rate means more power for your quad)
Build video: (english subtitles)