3" Red Black concept

By baze_fpv on May 24, 2019

9 956 6

I wanted to build small and slim 3" quad and I decided to use Alien frame for this build.
FC and ESC are installed side-by-side (not on top of each other) to make this build really slim.

I wanted to install FC and ESC side-by-side (which requires two 20x20 places), but this frame only had one 20x20 place. So I had to design additional 3D printed stands to make side-by-side installation possible. After these modifications distance between top and bottom plate is only 12mm.

I didn't paint the frame like I usually do (See my previous quads "Red-Black Tree" , "Bianco Arancione" or "Orange Pudang" ), but I did play around with colors red and black.

Custom 3D printed parts

Camera mount
VTX antenna mounts
ESC mount
All these parts can be found here https://www.thingiverse.com/thing:3654010

Other 3D printed parts

Arm protectors ( https://www.thingiverse.com/thing:3633602 )

Technical details

Smartaudio used to control the VTX
XM+ with RSSI

Updates

Updated to Betaflight 4.1 and JESC. Also enabled RPM filters and did some overall PID tuning.

"red/black concept refers to the careful segregation in cryptographic systems of signals that contain plaintext information from those that carry encrypted information" - https://en.wikipedia.org/wiki/Red/blackconcept

Photos

Part List

Frame	LEACO Micro Alien 3 Inch 135mm Carbon Fiber Frame Kit 2.5mm Arm for RC Drone FPV Racing (4 builds) Banggood.com	$20.37
Flight Controller	MAMBA F405 Mini Betaflight Flight Controller & F25 20A 3-4S DSHOT600 FPV Racing Brushless ESC (40 builds) Banggood.com	$43.99
Motors	4 x 4pcs EMAX 1306 RS1306 Version 2 RS1306B 2700KV/4000KV Brushless Motor 3-4S for RC MultiRotor Fpv Racing Drone Spare Part Aliexpress.com	See Site
Propellers	Emax AVAN Mini 3inch 3-blade Propellers Props Support RS1106 4500KV Brushless Motor suitable for Babyhawk 3 Aliexpress.com	$1.68
FPV Camera	Caddx Turbo EOS2 4:3 1200TVL 2.1mm 160 Degree 1/3 CMOS Mini FPV Camera NTSC/PAL For RC Drone (40 builds) Banggood.com	$14.90
FPV Transmitter	Holybro Atlatl 5.8G 40CH 25mW 100mW mini FPV Video Transmitter 19x16mm for RC FPV Racing Drone (6 builds) Banggood.com	$19.14
Receiver	Frsky XM XM+ Plus Micro D16 SBUS Full Range 2.4ghz Mini Receiver Up to 16CH for RC FPV Racing Drone w/ Antenna Aliexpress.com	See Site

Show stores (2)

Like Copy Part List Follow baze_fpv

Discussion

HunterCustom May 29, 2019

What size standoffs did you use?

baze_fpv Jun 11, 2019

distance between top and bottom plate is 12mm.

Rice_Bowl May 26, 2019

YOOO THATS SICKKK i think i might use youre quad as a basis for mine!! its also cool that you used an eos2 because it does makes sense to use a 14x14 to make it slammed. Do you have a link to your 3d printed parts for the fc and camera mount?

baze_fpv May 26, 2019

Thanks :+1: . Just uploaded STL-files here https://www.thingiverse.com/thing:3654010 with instructions. Have fun building :)

Jodie Froster May 25, 2019

You have a LOT of unsupported top plate that's likely to crack from the weight of the battery when you crash, but HOOOO-SHEET does she ever look goooooooood!

Rice_Bowl May 26, 2019

just dont crash, how hard can it be hahahah. Ive used the same frame before in a build i havent shown but its possible to put something above the boards so when the topplate flexes, it has soemthing to lean on. I havent broken any toplates so far, but i did wreck the arms ahhaha.

Guides & Reviews

115 22,060 40

Build a 5" Long Range Drone - Transformer Ultralight

Jun 21, 2021

AirbladeUAV has done it again and this time they've brought long range to the 5" class! Based on the popular Transformer Mini, the new Transformer 5" Ultralight adopts a lot of the same design philosophies with larger props and more payload capacity. It can fly upwards of 20 minutes on a 4 cell Li-Ion battery pack and in ideal conditions it's got a range of over 4 to 5 miles. In this guide I'll walk..

69 17,609 65

Build a DJI FPV Cinewhoop - QAV-CINE Freybott Edition

Mar 04, 2021

With the release of the DJI FPV Drone cinematic FPV has become a lot more accessible, but you certainly don't want to crash a $750 drone! The QAV-CINE Freybott is a compact, lightweight cinematic FPV drone that can take a hit and keep going. It's a lot safer to fly indoors and around people. With a naked GoPro or the SMO 4k you can capture some great stabilized footage. In this guide I'll show you..

Guides and Reviews