Djinn micro

By truckz on Nov 14, 2023

5  0  4

Getting back into FPV after a long hiatus. This here is a fun, small build to work on my building and soldering skills. Beware the HD port on T-Motor FC! - the pins were not correct for stock O3 cable. I had to re-pin the connector, which is quite tedius. Having flown it now, I don't think my choice of props was correct. I will try some of the recommended quad blade HQ props as soon as I can get some.

Maiden flight:

The feeling is off. I think the 2512 props have too little thrust. At full throttle, I couldn't catch my fall and hit the ground pretty hard. They are also extremely loud!! I could hear them screaming from across the soccer field. A bystander commented. I replaced them with EMAX Avan Rush 2.5x1.9 while waiting for the quad blade props to arrive. They are a little better handling - also somewhat loud.

Update - May 2024:
I started another build (7" long range) and pulled the O3 air unit and camera out of this one. I replaced it with analog camera, vtx, and antenna. I also added a buzzer that was pulled from a Geprc Mark5 so I can locate this sucker in the tall grass. I got myself a Bambu Lab P1S and replaced all the TPU prints. While I was at it, found a 3d print file for the Elrs antenna (thanks Quadmula!) to replace the zip ties previously used.

Photos

Part List

Frame

Djinn F25 Split (3 builds)
Quadmula.com
$47.00

Flight Controller

T-Motor Mini F7 HD & 45A Combo Stack
Rotorvillage.ca
$198.99

Motors

4 x T-Motor F1404 Micro Long Range Motors 2900KV (2 builds)
Pyrodrone.com
$67.60

Propellers

EMAX Avan Rush 2.5x1.9x3 Props (2 builds)
Rotorvillage.ca
$2.99

Propellers

HQProp Durable DT63MMX4 Quad-Blade 63mm Cinewhoop Prop (2CW + 2CCW)
Pyrodrone.com
$1.89

FPV Camera

RunCam Phoenix 2 Special Edition Micro Analog FPV Camera - Black
Pyrodrone.com
$24.99

FPV Transmitter

T-Motor FT800 800mW 5.8GHz 37CH Adjustable Analog VTX
Pyrodrone.com
$38.90

Antenna

FlyFishRC Osprey 5.8Ghz 90mm MMCX 90 Degree Antenna - RHCP 90mm
Pyrodrone.com
$6.69

Receiver

Foxeer ExpressLRS 2.4G Receiver LNA - T-Antenna
Rotorvillage.ca
$21.99

Batteries

4 x GAONENG GNB LiHV 6S 22.8V 650mAh 120C XT30 LiPo Battery FPV Drone Quadcopter (2 builds)
Gaoneng.shop
$187.20

Batteries

4 x GAONENG GNB LiHV 6S 22.8V 550mAh 100C XT30 LiPo Battery FPV Drone Quadcopter
Gaoneng.shop
$172.00

Batteries

【B086】2PCS Explorer 750mAh HV 15.2V 80C 4S1P Lipo Battery Pack - XT30 (2 builds)
Flywoo.net
$35.99

Radio

RadioMaster Boxer Transmitter (ELRS)
Rotorvillage.ca
$198.99

Goggles

SKYZONE SKY04X PRO OLED 5.8G 48CH Steadyview Receiver 1920X1080 DVR FPV Goggles Head Tracker Fan for RC Airplane Racing Drone (2 builds)
Skyzonefpv.com
$499.00

3D Printed

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Printables.com
See Site

Misc Parts

Ummagawd UMMAGRIP Lite - Super Sticky Battery Pad (2 builds)
Rotorvillage.ca
$6.39
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Discussion

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DeyronUsa   Nov 14, 2023  

nice, i tried those props and the GF2023 too. also emax and gf2540. the latter are better, but toss up.
I wish the frame was lighter or had 3 inch arm option.

truckz   Nov 14, 2023 
1

thank you. I have also ordered a set of the Emax Avan Rush to try. I'm also a little surprised by the weight. I removed the ND filter and the TPU arm guards but it only saved 5g. Would probably need a naked O3 to get it under 250g with the 6s I chose.

ztall0880   Jan 03, 2024 

i used naked 03 and still beyond 250g, i use 850mah, i may take some 650mah , and i'll be 2+g... with new regulations in europe... it makes life harder with the hobby.

truckz   Jan 03, 2024 

That is good to know. Thank you.
As much as I like this frame and enjoyed the build, I'm going to stop pursuing sub 250g with this one.
I'll keep it and bash it around but I'm not a big freestyle guy. More into long-range. So the next build will be more focused on that.

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