3" Red Black concept

By baze_fpv on May 24, 2019

8  889  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

Other 3D printed parts

Technical details

  • Smartaudio used to control the VTX
  • XM+ with RSSI


  • 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



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HunterCustom   May 29, 2019  

What size standoffs did you use?

baze_fpv   Jun 11, 2019 

distance between top and bottom plate is 12mm.

StickyRice   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!

StickyRice   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.

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