Martian II 250 6" v4

By miromir237 on Nov 05, 2018

9  342  2

This might be rework off my older Martian or complete new build, I do not remember. I just discovered it is not listed in my builds.
This one has 3mm bottom plate and 2mm top plate that makes it tank. All the edges are manually chamfered. I also designed and 3d printed the antenna holder in the back.

It is rather heavy though. With 5.5" props the weight is not a big problem and paired with 5s battery it is a blast. Pictures are with 6" Kingkong bi-blades that I would like to test.

I had trouble tunning out some mid-throttle oscilations so I added 330uF 35V cap on each ESC and one 1000uF 35V cap on power leads. That seems to solve the issue.

Photos

Part List

Frame

Realacc Martian IV 6 Inch 250mm Wheelbase 4mm Arm Carbon Fiber FPV Racing Frame Kit (3 builds)
Banggood.com
$29.99

Flight Controller

Matek F405-OSD BetaFlight STM32F405 Flight Controller Built-in OSD Inverter for SBUS Input (101 builds)
Banggood.com
$27.99

ESCs

4X DYS Aria BLHeli_32bit 35A 35amp Brushless ESC 3-6S Dshot1200 Ready Built-in Current Meter Sensor (22 builds)
Banggood.com
$63.00

Motors

4 x Brotherhobby Returner R5 2207 2400KV 2700KV 4-5S Brushless Motor Al 7075 Case with 16cm Wire (7 builds)
Banggood.com
$95.96

Propellers

DALProp T6040C Cyclone Propellers (5 builds)
Fpvheadquarters.com
$2.99

FPV Camera

Foxeer Predator Mini 1.8mm/2.5mm CMOS 1000TVL/20mS Latency 4:3 Super WDR Function FPV Camera w/ OSD (106 builds)
Banggood.com
$28.99

FPV Transmitter

Matek Systems FCHUB-VTX 6~27V PDB 5V/1A BEC w/ 5.8G 40CH 25/200/500mW Switchable RC Drone Video Transmitter (15 builds)
Banggood.com
$36.50

Antenna

Aomway 5.8GHz FPV 4 Leaf Clover AV Transmission RHCP Antenna 1 Pair Blue Red w/Canopy For RC Drone (112 builds)
Banggood.com
$11.99

Receiver

FrSky R9 Slim 900MHz 6/16CH Long Range Receiver (14 builds)
Getfpv.com
$25.99

Radio

FrSky Taranis X9 Lite 2.4GHz 24CH ACCESS ACCST D16 Mode2 Classic Form Factor Portable Transmitter for RC Drone (10 builds)
Banggood.com
$95.99

Goggles

(PRE-ORDER) DJI Digital FPV Goggles - Ultra Low Latency 720p 120FPS Digital HD (73 builds)
Racedayquads.com
$529.00

HD Camera

GoPro Hero5 Session (196 builds)
Amazon.com
$299.99

Radio Module

FrSky R9M Transmitter Module (69 builds)
Racedayquads.com
$34.99

Battery Charger

ISDT Q6 Plus 300W 14A MINI Pocket Battery Balance Charger (56 builds)
Banggood.com
$59.99

Soldering Iron

TS100 Portable Programmable Smart Soldering Iron (161 builds)
Racedayquads.com
$51.29

Backpack

Torvol Quad Pitstop Backpack PRO (4 builds)
Hqdrones.nl
$201.83

Misc Supplies

TrueRC X-AIR 5.8GHz Crosshair Antenna (RHCP) (4 builds)
Hobbyrc.co.uk
$31.31
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Discussion

Sign in to comment

Jodie Froster   Nov 05, 2018  

I'd like to look at the stl. file for that antenna mount you have out back (and I nice butt shot for your photo spread here :))

miromir237   Nov 06, 2018 
1

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