CrzyX

By MamaJOE on Oct 29, 2021

7  212  4

The story behind the build

Nothing special...
I saw this extraordinary frame and I knew I had to build it ;)

Choice of components

Ok, the frame was set, so I watched out for the motors. They should be lightweight and fit the M2x12 mounting pattern.
I also wanted to add some color this time, which lead me to the rcINpower GTV V3.
This build should also be a bit crazy, so 6S ws the minimum -> 1850 KV.
For the mini size stack I wanted to try Diatone, because I think the are top notch, I haven't tried them yet and they were available!
Unfortunately I noticed to late, that the Mamba DJI F722 mini MK2 doesn't support blackbox logging.
For a lightweight frame with plenty of power (and added weight) I definitively don't want to miss blackbox logging, therefore I switched the FC to an Aikon F7.
Digital was set anyway, and after my first experience with the Caddx Polar, it was clear to take Polar again.#
I didn't want to have this big LED show, but for a little bit of color, I decided to give the TrueRC Blaze a try.
The props should be 5.1", but very low-pitched because the motor doesn't have that much torque.
That's why I chose the Gemfan 5125 SL. I think "SL" stands for superlight - and yes, they are: 2,9 g per one!
So here we are, let's build this thing...

Building

The build was very great fun, at least to me...
This frame offers to little space to just arrange things, I had to find a custom way to fit everything in - and I love that.
In the inner space, there is enought heigt for the FC and ESC or FC and Vista. But the mounting holes for the FC are so filigree, that I was definitively doesn't want to fix the Vista there and also had some headache to fix the FC-ESC stack. Thats why I used them only to fix the FC and put the ESC under the topplate, which wasn't meant to carry anything. But I tought the ESC will be ok...
So the only space left for the Vista was inside the frame. To get the needed height and have an opportunity to fix the Lipo, I had to build an additional bottomplate.
But with this, I was able to build a seperat "video module" which could be detached easily .

Flight quality

The first trial was catastrophic the copter flew, but at the end of sharp flips or rolls it freaked out for split seconds - really scary!
After some flight I found the superlight props to be the problem. I changed them to HQ DP5.1x3.6 and this problem was solved.
With this props the copter flies really good, but the voltage sag is pretty heavy. I think the 6S 650 mAh I used are to small for this setting.
I'll watch out for 850s or 1050s and try again.
But beside of that, it a really fast and agile copter!
And I'm really curious how it will perform with bigger batterys and a good tuning...
I'll update, when I tried the bigger batterys.

Update:
Now, I have some 1050 mAh batterys. But they feel just too heavy for this frame.
That's why I reduced propellers's pitch instead of increasing battery capacity - and it works.
The 5130 props really fit this powertrain.

Data

Weight with props: 241 g
AUW with 6S 650 mAh: 354 g
Flight time (650 mAh): approx. 2:30 to 5:00

Photos

Part List

Frame

X-Fighter (2 builds)
Druckbaer-racing-frames.de
$68.35

Frame

Skull and Drones Sandwich Top Plate (2 builds)
Rctech.de
$6.30

Frame

Extra Plate (2pcs) Freestyle 5-10 Frame (3 builds)
De.amaxshop.com
$11.99

Flight Controller

Aikon F7 Mini HD 20x20 V3 Flight Controller (4 builds)
Phaserfpv.com.au
$65.86

ESCs

MAMBA F40 MINI PRO Dshot1200 4IN1 ESC 40A 6S Electronic Speed Controller (2 builds)
Diatone.us
$47.99

Motors

4 x RCINPOWER GTS V3 2105-M5 1850KV Motor - Teal/Pink (2 builds)
Pyrodrone.com
$83.96

Propellers

HQProp DP 5.1X3.6X3 Propeller - Gray (Full Set Of 4) POPO - MyFPV (3 builds)
Myfpvstore.com
$3.59

Propellers

Gemfan 5125 SL Hurricane 5,1" 3-Blatt Propeller, 1.5mm/5mm Welle (3 builds)
Shop.rc-hangar15.de
$3.14

Propellers

Gemfan Freestyle 3S 5130 Tri-Blade 5" Prop 4 Pack - Choose Your Color (3 builds)
Racedayquads.com
$2.99

FPV Camera

Caddx Polar Micro Digital FPV Vista Camera Kit - Silver (26 builds)
Pyrodrone.com
$139.00

Antenna

TBS CROSSFIRE IMMORTAL T V2 ANTENNA (112 builds)
Pyrodrone.com
$5.95

Antenna

BLAZE 5.8 - TrueRC Canada (3 builds)
Truerc.ca
$16.99

Receiver

TBS Crossfire Nano Rx - FPV LONG RANGE DRONE RECEIVER (1284 builds)
Team-blacksheep.com
$24.95

Batteries

6S 22,2V 650mAh 95C TATTU R-Line Lipo Akku (2 builds)
Shop.rc-hangar15.de
$25.23

Batteries

RC-Hangar15 Antirutsch Lipostrap 16x250mm, Kevlar, Metallse (3 builds)
Shop.rc-hangar15.de
$2.10

Power Distribution

XT30-U Black (5 Pairs) Connector AMASS (2 builds)
De.amaxshop.com
$38.07

Power Distribution

3 x Panasonic 330uF 50V FR Ultra Low ESR Capacitor (2 builds)
Hobbyrc.co.uk
$3.72

Radio

RadioMaster TX16S Multi-Protocol RF Module OpenTX 2.4GHz RC Transmitter w/ V3 Hall Gimbals (82 builds)
Racedayquads.com
$199.99

Radio

21700 5000mAh Battery for TX16S
Radiomasterrc.com
See Site

Goggles

URUAV V2 3 in 1 Dust-proof Shading Sheet Protective Lens Cover for DJI Digital FPV Googles
Uruav.com
$7.55

Goggles

DJI Digital HD FPV Goggles (125 builds)
Getfpv.com
$529.00

Goggles

iFlight Crystal HD Patch 5.8GHz RP-SMA Antenna for DJI - LHCP - Choose Your Design (4 builds)
Racedayquads.com
$44.99

Goggles

2 x Double Quad RX Black Edition LHCP RP-SMA male speziell fr DJI HD FPV System (2 builds)
Antennenfreund.de
$52.56

Goggles

Replacement DJI FPV Goggles Sponge Foam Padding
Shop.iflight-rc.com
$11.99

Goggles

Ersatz Akku Li-Ion 4,4Ah (4 * 18650 Akku) + Tasche für Magicshine.eu - bikelight.eu - LED-Fire.com und andere LED-Lampen mit 7,
Amazon.de
$1.05

Hardware

CopterFarm Super Sticky Cow Tongue Pad Batterie LiPo (6 builds)
Copterfarm.de
$6.26

Hardware

ISO 7380 M3 Titan schraube M3x40 M3x44 M3x45 M3x50 Taste Kopf Hex 2,0 Treiber Ti GR2 Poliert QCTI Schraube (3 builds)
De.aliexpress.com
$4.18

Misc Parts

Plasti Dip Liquid Electrical Tape schwarz 118ml 4oz black (8 builds)
Plastidip-sale.com
$13.95

Radio Module

TBS Crossfire Micro TX V2 (43 builds)
Getfpv.com
$69.99

Battery Charger

2 x Power Genius SAFE Parallel board XT30 and XT60 2S to 6S with Fuse Protection (3 builds)
Pyrodrone.com
$19.98

Battery Charger

2 x BAT-Safe LiPo Tresor sicheres Laden und Aufbewahren der Akkus
Amazon.de
$126.16

Battery Charger

2 x Amacoam 2 Stück Lipo Batterie Sicherer Beutel Feuerfeste Explosionsschutz Lipo Battery Guard Tasche Sack Gebühren Schutz Tasch
Amazon.de
$48.36

Battery Charger

ISDT D2 Mark 2 200W 12A Netzteil Lipo Akku Batterie Balance Ladegerät Entlader AC DC Dual für Rc Modelle 1-6S Li-ion Life NiCd
Amazon.de
$126.08

Soldering Iron

Tilswall Lötstation 65W Lötkolben Set 200°-480°, mit 5 Ersatzspitzen und Lötzinn, einstellbarer Temperatur, eingebaute Tran (2 builds)
Amazon.de
$45.20

Backpack

Skyreat Hard Carrying Case for DJI FPV V2 Goggles
Getfpv.com
$19.99

Backpack

Tarion Pro PB-01 Professional Camera Backpack
Tarion.eu
$189.99

Accessories

ETHIX Heated Deluxe Lipo Bag V2
Team-blacksheep.com
$64.95

Accessories

Kesser® Campingstuhl faltbar klappbar tragbar Angel Stuhl Camping Stuhl Faltstuhl bis 120 kg Strandstuhl Angelstuhl Klapphocker
Amazon.de
$34.49
Show stores (22)

Discussion

Sign in to comment

Crafted Kwads   Jan 14, 2022  

Sick build! How do you like these motors? Think Im going to get them for a 4in 4s.

MamaJOE   Jan 14, 2022 

Thanks, I take this as a compliment.
Till now, I like the motors, they have no bearing play and are running smooth.
For 4S you will use the 2950 KV motors, right?
I think for a 4", they will have plenty of power. Give the 6-blade props (see my KISS of Calm build) a try ;)

Crafted Kwads   Jan 14, 2022 

I am thinking of the 3600kv version and limiting it to 3000kv, because those are the only ones I can get in gunmetal and gold ;) Do you find that they are decently efficient, or are they more suited for a racing build? I want a freestyle build that I can limit and put different props on to give it good flight time for range.

MamaJOE   Jan 15, 2022 

I'm not sure if this motor is the right one for long range. I achieve 5 min flight time with 650 mAh easily but I think it's rather the light copter, than the efficiency of the motors. Perhaps the Emax ECOII 2004 will be perfect for your needs? For a lightweight 4", they should have enough power...
Here's why I would suggest them:

ECO II 2004:
https://emax-usa.com/collections/power-systems/products/eco-ii-2004-brushless-motor-choose-kv?_pos=1&_sid=38ceee244&_ss=r

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