Firefly 2.5" Source Micro

By Anco on Oct 23, 2019

18  720  8


This is my first build based on the TBS Source Micro frame, a stack of FC and ESC by Diatone, a Foxeer Mix 2 for the FPV cam and HD record, a TBS Unify Pro Nano and a XM+.


Part List


TBS Source Micro

Flight Controller

Contrôleur de vol Mamba F405 Mini MK2


ESC Mamba F25 4in1 BLHeli_S Dshot600


4 x MAMBA 1105 5500KV 2-4S Brushless Motor For Diatone GT R239 R249 R249+ FPV Racing RC Drone (27 builds)


HQ Micro Prop T65MM (5CW+5CCW) - PC


HQProp Durable DP T2.5x2.5x3 PC (4 pces) -2x CW + 2xCCW (4 builds)

FPV Camera

Foxeer Mix 2 Mini Camera HD

FPV Transmitter

TBS Unify Pro Nano 5.8g


Antennes TBS Triumph PRO U.FL - RHCP


Récepteur FrSky XM + (SBUS 16 voies) (EU-LBT) (3 builds)


4Pcs URUAV 11.4V 300mAh 40C/80C 3S HV 4.35V Lipo Battery XT30 Plug for URUAV UR85/UR85HD Mobula7 HD Sailfly-X RC Drone (2 builds)


CNHL MiniStar 450mAh 11.1V 3S 70C Lipo Battery XT30U Plug for RC Drone FPV Racing (13 builds)


Radio FrSky Taranis X9 Lite (2 builds)


Fatshark Attitude V5 - Lunettes FPV

Misc Parts

5cm XT30U XT30 Male Female Plug 18AWG Cable for Section Board Soldering ESC 2S Lipo Battery (3 builds)

Video Receiver

Topsky 2 Inch 5.8Ghz 48CH FPV Watch Monitor Receiver OSD Built-in Battery MMCX for RC Drone

Battery Charger

New B3 20W Balance Charger 2S-3S Lipo Battery Charger for RC Helicopter Model
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WolfiFpv   Apr 08, 2020  

Very great build, it looks very clean and amazing, like it would have been built by a professional, even if it is your first selfmade quad.
It has inspired me to build a 2.5inch TBS Source Micro based build myself.
What kind of flighttime do you get on your 300mah and 450mah lipos with these propellers and motors if i may ask?

Shredder   Dec 25, 2019  

Very nice build.
My current build is also a sourcemicro.
Do you have the models of the printed parts?

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Shredder   Dec 29, 2019 

Thank you very much. Happy flying

Shredder   Dec 30, 2019 

And what about the props? On my build, the 2.5" props are touching the standoffs...

Anco   Jan 15, 2020 

Hi, I don't have problem with 2.5" props, there is less than 1 millimeter between props and standoff but not touching.

DoubleJackOnTap   Oct 23, 2019  

Looks great.  I bet that was a challenging build, not much room to spare with everything in that tight frame.   What are you using for batteries?  Looks like a dual lead setup like the Tinyhawk Freestyle.

Anco   Oct 24, 2019 

Thank you for your feedback.
I spent a lot of time thinking about how to put the different parts, after this first step of thinking, the construction was not very complicated, you have to be careful.
For the moment I use 3 batteries 1S 300mah from Betafpv (which I already owned) while waiting to order 3S 450mah.

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