DJI Cygnet 3

By Woz86 on Feb 16, 2020

13 715 3

I love my Cinepro 4k that I shoehorned an Air Unit into, so I thought I'd try the 3" version of the frame. Because I wanted to mount the Air Unit centrally I couldn't go for the same Stable F7 stack from Geprc, as the stack connects together with pins, so therefore I went with the Iflight f7 dji mini stack laid down adjacent to each other on the bottom plate . Motors are 1206 4500kv Geprc version seen in the Cygnet 3.

The only problem encountered was the height of the air unit on top of the single layer FC/ESC. I am going to have to find some longer countersunk m2 screws and shim the top plate, because at the moment the carbon is flexing when the pins are fully screwed in...

Photos

Part List

Frame	GEPRC GEP-CX3 Cygnet 3" Micro FrameDefault Title (4 builds) Racedayquads.com	$32.90
Flight Controller	20x20 Mini Drone Stacks/Combos for - RaceDayQuads (25 builds) Racedayquads.com	$89.99
Motors	4 x GEPRC GR1206 4500KV 6000KV 7500KV 2-4S Brushless Motor for RC Drone FPV Racing (3 builds) Uk.banggood.com	$60.16
Propellers	6 Pairs Emax AVAN Mini 3 Inch 3X2.4X3 3-blade RC Drone FPV Racing Propeller CW CCW (65 builds) Banggood.com	$6.74
FPV Transmitter	DJI Digital FPV Air Unit - Ultra Low Latency 720p 120FPS Digital HD Racedayquads.com	$179.00
Antenna	2 x ProMicroVee_HD_Lite MMCX (2 builds) Shop.prodrone.pl	$40.00
Batteries	Turnigy Nano-Tech Plus 650mAh 4S 70C Lipo Pack w/XT30 (Removable Balance Plug) (2 builds) Hobbyking.com	$13.09
Misc Parts	2PCS Mateksys RGB ARM 16V 46X6mm Light LED Strip Board for RC Drone FPV Racing (2 builds) Banggood.com	$6.37
Misc Parts	ViFly Finder 2 Buzzer - Lost Drone Finder/Locater/Alarm (174 builds) Racedayquads.com	$14.99

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Discussion

lgustol Aug 31, 2020

How did you attach the straps to the frame? I got an air unit and I love the cygnet 3. I'm thinking of doing something exactly like this for my first build, but I'm worried I may not be able to make it all fit. I'm also thinking of shortening the stack screws a little bit, maybe filing them down and cutting a little bit off the grommets' height.
How much height would you say the frame was missing for the air unit to sit on the boards' screws without the top plate flexing?
Could you post some more pictures, or maybe a video of it?

Achaian Apr 24, 2020

excellent build! exactly what i am going for but at a 2inch version of the gep-cp frame.
Does the Air unit contact the stack ?do you think that raising the top plate`s height is going to affect its flight characteristics?
Does it fly well enough?

Woz86 Jul 22, 2020

yo man, sorry not been on the site for ages. with the 3d printed bracket there's plenty of room if the stack is laid flat next to one another. I'm no hot shot pilot, so the 3 inch is pretty fast compared to the 2 inch version.

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