All-arounder 2,5" 4S on Walksnail

By mateuszjasek on Jul 17, 2024

2  0  4

I've been working on building the perfect all-around quad for my bike trips, focused on cruising with smooth, cinematic footage and no props in view. After some research, I decided on the FI-118 frame, which might not be well-known but has a great design for my needs. For night vision, I went with the Walksnail Pro camera, and for range, I chose the Walksnail 1S VTX V3 (500mW) than v1/v2 (350mW) along with a ExpressLRS receiver featuring PA and LNA.

This setup has really exceeded my expectations. The flight is super smooth and cinematic, exactly what I was aiming for. Plus, the GPS has been rock solid, giving me that extra peace of mind. Managed to get as far as 1km without any issues with LOS. The balance between aggressive flying and efficient cruising makes this quad super versatile.

Loving how this build turned out!

Photos

Part List

Frame

Feichao Fi-118 2.5" Toothpick Frame Kit
Yourfpv.co.uk
See Site

Flight Controller

GEP-TAKER G4 35A AIO - GEPRC
Geprc.com
$56.99

Motors

4 x GEPRC SPEEDX2 1303.5 3800KV/5500KV Motor - GEPRC
Geprc.com
$63.96

Propellers

Emax AVAN Rush 2.5 Inch 3 Blade Propeller (2 Pairs)
Rc-wing.com
$1.59

FPV Camera

Walksnail Avatar HD Pro Camera (3 builds)
Caddxfpv.com
See Site

FPV Transmitter

Walksnail Avatar HD Mini 1s And Mini 1s Lite Module (2 builds)
Caddxfpv.com
See Site

Antenna

Walksnail VTX V2 Antenna (5 builds)
Caddxfpv.com
See Site

Receiver

ELRS Nano Receiver
Betafpv.com
$9.99

Misc Parts

FlyFishRC M10 Mini GPS Module
Flyfish-rc.com
$14.90
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Discussion

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LiPoFly   Jul 18, 2024  

Nice build. What GPS receiver are you using? How many satellites does the receiver pick up?

mateuszjasek   Jul 18, 2024 
1

I just updated build info with Gps receiver i used. I'm getting 6-10 satellites depending on the day. It takes around 2-3 minutes to get cold fix.

LiPoFly   Jul 18, 2024 

Thank you. I thought that there would be few satellites due to walksnail interference.

mateuszjasek   Jul 19, 2024 
1

It's still performing worse than m10 gps on my 5" quad with full sized walksnail v2 vtx, where i get 15 sats instantly. I guess it's because of smaller gps antenna and closer distance to vtx. m10 mounted on arm of my 7" gives me even 30 sats. I set GPS_RESCUE_MIN_SATS = 5 to be sure that i don't lose gps rescue ability in poor signal reception conditions.

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