2Fiddy Ultralight 4" 6S

By shALKE on May 10, 2022

4  88  5

Setting up a 2Fiddy Ultralight with a 6s and some beefy motors (I just had extra supply :)), feels like a race quad toothpick.

Photos

Part List

Frame

Ummagawd 2Fiddy Ultra Light 4" Frame (3 builds)
Racedayquads.com
$59.99

Flight Controller

Beast F7 55A V2.2 AIO (BMI270) 25.5x25.5 (5 builds)
Shop.iflight-rc.com
$109.99

Motors

4 x RCinpower GTS V3 2104T Light 1800KV / 3000KV (2 builds)
Yourfpv.co.uk
$67.44

Propellers

HQ Prop 4×2.5×3 V2S (2CW, 2CCW)
Unmannedtechshop.co.uk
$2.81

FPV Camera

Caddx Nebula Pro Nano Digital Camera (8 builds)
Caddxfpv.com
$66.90

FPV Transmitter

Caddx Vista Unit for DJI Digital HD FPV (No Camera) (90 builds)
Getfpv.com
$99.99

Antenna

Foxeer Lollipop RHCP Micro u.FL (2 builds)
Rotorama.com
$9.57

Receiver

Happymodel 2.4g ExpressLRS EP2 RX Receiver module (50 builds)
Pyrodrone.com
$13.49

Batteries

GNB 650mAh 6S 120C LiHV Battery (XT30) (2 builds)
Hobbyrc.co.uk
$22.85

Radio

TBS Tango 2 Pro - FPV RC Radio Drone Controller (78 builds)
Team-blacksheep.com
$199.95

Radio

RadioMaster Zorro ELRS Protocol Radio Controller (2 builds)
Newbeedrone.com
$119.99

Goggles

DJI FPV Goggles V2 (159 builds)
Store.dji.com
$569.00

HD Camera

GoPro HERO5 Session (300 builds)
Getfpv.com
$199.99

Misc Parts

FETtec Spike Absorber (9 builds)
Pyrodrone.com
$6.99

Misc Parts

NyoGel PG-44A Super Damping Grease (5g Tube) (7 builds)
Oveready.com
$15.00

Radio Module

HappyModel ES24TX Slim Pro ELRS 2.4GHz RC Transmitter Module (4 builds)
Racedayquads.com
$47.99

Battery Charger

HOTA D6 Pro 325W 15A 1-6S Dual Channel AC/DC Smart Charger w/ Wireless Cellphone Charging (44 builds)
Racedayquads.com
$118.00

Soldering Iron

Hakko FX888D-23BY, 599B-02 Soldering Station with 599B Tip Cleaner, Blue/Gold (22 builds)
Amazon.ca
$91.90
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Discussion

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Madcatmike3d   6 days ago  

Nice! I've built 2 of these 4" versions on 6s so far. They are so damn much fun. I didn't even think about throwing a Nebula Pro Nano in there.. I guess it would be just about as good as any other 120fps cam. I also have a regular 5" 2fiddy built up too, but run 4.5" props on it, and it's just about as good as the 4" versions.

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Madcatmike3d   1 day ago 

Yessir you are correct! Just an arm swap will make it accept 5" props. I run the same exact electronics, except for motors. On my 5" I'm running the NBD Flow 2004 1750kv. Which is pretty perfect for 6s with a 5" prop. I wish I could swap them for the 1850kv ones though, just to get a hair more rpm with the 4.5" prop. Then run a 5-10% throttle cut when running 5" props. But yea, even on 1750kv the 4523 props are awesome. Just makes for an even zippier setup. It's definitely worth trying!

shALKE   1 day ago 
1

how are the Flow motors? they are really good priced.

Madcatmike3d   1 day ago 
1

They are AWESOME motors.. I was actually turned off by both how cheap they were, along with how many people were buying them. I know, it's dumb.. I just wondered how good could they be if they're this cheap? and people are probably just buying them because they are the cheapest 2004 available (at the time.) I ended up buying the 8 pack when they were available for $100, and they have been so rock solid. They have boatloads of power on a light 5", and they're efficient and tough. I drove my first 2fiddy face first into the ground, broke an arm, and the motors and wires held up great. I wish that deal was still available! Also running the Tmotor 2004's on another build, and they are awesome too.

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