Getting Started with a 6" Freestyle Rooster

By jseaber on Sep 15, 2018

10  645  7

Build Priorities

This 6" Rooster is my first quad build. I initially planned a low cost quad sourced from Banggood, to get over the FPV learning curve. After gaining confidence on the sticks in FPV Freerider and watching too much FPV on YouTube, I realized I'd rather start with robust parts and support pilots like Le Drib and Mr. Steele. This freestyle build focuses on:

Frame durability
Electronics reliability
Clear video
Strong motors

Rooster Build Notes

Mounting the Receiver
The XM+ is absolutely tiny. However, the Rooster seriously lacks space towards its rear. I could either mount the VTX, or the receiver comfortably, but not both. I considered attaching the XM+ beneath the battery plate, or near the camera, but antenna placement was optimal in the rear. I resorted to padding the receiver with a second piece of clear heatshrink, then halfway sandwiching it between two layers of carbon fiber, followed by hot glue.

In hindsight, the receiver might have fit more easily beneath the FC using zipties+heatshrink to position each antenna.

Mounting the Camera
Pay careful attention to which cameras fit your frame. I accidentally ordered a Foxeer Micro instead of Foxeer Mini, only to discover there is no straightforward way to mount a micro sized cam in the Rooster frame. The RunCam Rotor Riot Edition Swift 2 fits the Rooster without modification.

Mounting the Video Transmitter
Again, the Rooster is cramped near its VTX antenna exit, and there was no ideal mounting spot, especially since VTX's run hot and require plenty airflow. I rotated the camera connector 180 degrees and wedged the VTX between the flight controller and rear antenna plate, then secured with hot glue. Messy but functional.

*Edit: After crashing and ruining two VTX antennae, I moved the VTX to the flight controller stack by mounting beneath a 37x37mm acrylic plate. The stock VTX antenna rear plate has been swapped with Armattan's Long "Long Range VTX" plate mounted inside the frame with M3 spacers. Receiver antennae are now mounted to the rear with zipties and heatshrink. See last picture.

The TBS Triumph antenna has been replaced with Pagoda 3's. Reception is just as good

VTX Wiring:
Based on feedback from other CL Racing F4S owners, and knowing I'll stick to 25mW VTX power for now, I wired the RunCam and VTX directly to the FC, configured for 9V:

Runcam Swift 2 connected to F4S at: CAM_C, CAM_S, CAM+, CAM-, Microphone signal to VTX "Audio"
TBS Unify Pro 5G8 HV connected to F4S at:VTX_S, VTX+, VTX-, "SmartAudio" to TX4

The microphone signal picks up audible 2.4GHz interference in my house, but is fine outside. Video is clean anyway.

Photos

Part List

Frame

Rooster (98 builds)
Armattanquads.com
$95.00

Flight Controller

CL Racing F4S Flight Controller PDB OSD AIO (86 builds)
Getfpv.com
$34.99

ESCs

4 x DYS Aria BLHeli_32bit 35A ESC (7 builds)
Getfpv.com
$63.96

Motors

4 x ETHIX Mr Steele SILK Motor V2 (16 builds)
Team-blacksheep.com
$107.80

Propellers

HQ V1S 5x4.3x3 5" Prop - CHOOSE YOUR COLOR (268 builds)
Racedayquads.com
$3.69

Propellers

Lumenier 6x5x3 - Gate Breaker Propeller (Set of 4 - Transparent Black) (3 builds)
Getfpv.com
$2.99

FPV Camera

RunCam Swift Rotor Riot 2 Special Edition - Silver (69 builds)
Getfpv.com
$44.99

FPV Transmitter

TBS Unify Pro 5G8 HV (SMA) (393 builds)
Getfpv.com
$49.99

Antenna

Pagoda-2 5.8ghz RHCP Antenna (4 builds)
Armattanquads.com
$6.00

Antenna

TBS Triumph 5.8GHz RHCP FPV Antenna Set (SMA) (451 builds)
Getfpv.com
$39.99

Receiver

FrSky XM+ SBUS Mini Receiver (877 builds)
Getfpv.com
$13.99

Batteries

Thunder Power Adrenaline 1300mAh 4S 100C Lipo Battery (10 builds)
Getfpv.com
$28.99

HD Camera

GoPro HERO5 Session - Waterproof Digital Action Camera for Travel with 4K HD Video 10MP Photos (297 builds)
Amazon.com
$190.00

Transmitter

FrSky Taranis Q X7 2.4GHz 16CH Transmitter (Black) (51 builds)
Getfpv.com
$107.99

Misc Parts

iSDT Q6 Lite Smart Charger
Getfpv.com
$49.99

Misc Parts

Black XT60 Power Connectors (5 Pair) (4 builds)
Getfpv.com
$4.99

Misc Parts

Fat Shark Dominator HD3 Core FPV Goggles (6 builds)
Getfpv.com
$399.99

Misc Parts

2 x FrSky M7 Hall Effect Sensor Gimbal for Taranis Q X7
Store.rotorriot.com
$35.98

Misc Parts

Armattan Rooster Session Mounts
Brain3d.co
$15.00

Misc Parts

ImmersionRC rapidFIRE w/ Analog PLUS Goggle Receiver Module (2 builds)
Getfpv.com
$149.99
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Discussion

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howboutthatFPV   Sep 16, 2018  

isnt 2450kv a little but too much kv for a 6 inch? the best ive been told is from 2150kv-1850kv

jseaber   Sep 16, 2018 

Yeah, probably! I didn't know what to expect with 6" props on these motors. Armattan supplied a set of 6x3x3 props, which is a lower pitch than I've found from the usual US suppliers (they only stock 6x4x3 and 6x5x3?). Thrust is insane with 6x5x3 props. Run time is just over 4 minutes.

I tried 5x4.3x3" props a couple days ago and enjoyed the relaxed throttle. Might keep using 5" props on the longer arms.

howboutthatFPV   Sep 27, 2018 

Cool! Ive never tried 5" on 6" arms
Sounds like a future experiment for me!

Itaalh   Sep 18, 2018  

like this

jseaber   Sep 18, 2018 

Nice, where did you get the plate?

Itaalh   Sep 18, 2018  

you can add a carbon plate on top of your FC (or under) to fit your VTX. that's what I did with my rooster

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