2,5" sub100g DJI HD 2s parkflyer - based on "Sting" frame

By Felias - eyefly on Apr 28, 2021

16 681 2

Hi there!

as i was really annoyed with noise 2,5" - 3" drones and 4s lipos, i wanted to build something very different. A very small 2,5" drone using a 2s setup that still provides incredible thrust and can be easily freestyled. Using 2s, it is so silent that you can easily fly it at a park where there might be other people (without annoying them).

My name is Nic, and i design frames for fun and personal projects. Every project goes through 4 phases: Ideation, Design, Building, Flying & Improving. I document what i do on my Youtube channel eyefly tinkerings.

Design:

Building / Setup:

Flight:
will follow soon!

The frame just weights 14,5g in total, so allows for a light-weight build.

Design files are available on Thingiverse - i'd love to see you build your own! https://www.thingiverse.com/thing:4743636

I also designed a 3" version of this to build a sub250g freestyle quad including a naked GoPro. A seperate build will follow soon.

Photos

Part List

Frame	"Sting" freestyle frame - sub100g - 2s - 2,5" - DJI HD by eyefly Thingiverse.com	See Site
Flight Controller	20x20mm Jhemcu GHF420AIO F4 OSD Flight Controller w/ 5V 9V BEC Output & Built-in 35A BL_S 4In1 Brushless ESC Support DJI Air Uni (9 builds) Banggood.com	$71.99
Motors	4 PCS Flywoo ROBO RB 1202.5 5500KV 2-4S / 11500KV 1-3S Brushless Motor 1.5mm Shaft for 2-3 Inch RC Drone FPV Racing (6 builds) Banggood.com	$53.99
Propellers	HQProp Toothpick T65mm Tmount Grey 5CW/5CCW (5 builds) N-factory.de	See Site
FPV Camera	Caddx Vista HD Digital System 5.8GHz FPV Transmitter VTX FOV 150 Degree Camera 1080P Recording AIO Compatible DJI FPV Goggles Re (202 builds) Banggood.com	$163.99
Antenna	iFlight SIGMA 5.8GHz U.FL Antenna - Choose Your Polarization and Color (17 builds) Racedayquads.com	$7.99
Receiver	TBS Crossfire Nano Rx - FPV LONG RANGE DRONE RECEIVER (1484 builds) Team-blacksheep.com	$24.95
Batteries	Tattu 2S 450mAh 75C Lipo Long XT30 Whoops (16 builds) N-factory.de	See Site

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Discussion

eddieza Dec 28, 2021

hye hows the motor holding with the setup. r u using 100% throttle. i build mine using 2" 2s with jhemcu 13a.

Felias - eyefly Dec 31, 2021

It's working very well for me. I do use 100% throttle here and there, but never for a longer period of time. Motors are not getting hot.

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