Martian II 5 Inch

By Narbicus on Feb 10, 2018

14  1,131  6

First build. Inspired by UAV futures $99 build and Whiffles Wizard Killer.

08/09/2017 - First build complete. Did it the standard way except for a few things.

  • Wanted to use a different PDB so replaced it with an additional glass fibre insulation board to help strengthen the frame.
  • Cut the lid off esc covers, stuck esc's on arms with 2mm thick double sided foam tape and zipped tied the covers upside down.
  • Reinforced the edges of the frame with several layers of superglue, lightly sanded down and sprayed with matt black car paint. (Not sure its going to make much difference but it was something to do while i waited for parts to arrive!).

29/09/2017

  • Replaced standoffs and installed lights.
  • Cut down silicone battery pads and glued to the top frame and added carbon fibre battery cover.

07/10/2017

  • Depinned ia6b receiver to make it more compact, (in hindsight should have bought a x6b instead) heat shrinked the aerials to the mount and secured with zip ties.

20/11/2017

Dismal British weather has kept me indoors so decided to begin the rebuild about 2 weeks ago.

  • Added some Panasonic FR 25v 470uf low esr capacitors to the esc's to help cut down noise and give a cleaner FPV feed so won't be using the low cut filter.
  • Rewired the esc's and used some 6mm wire mesh to protect the motor cables and 20mm clear heat shrink to protect the pdb wires and capacitors.
  • Unfortunately there was a short in the LED wiring and my Omnibus F4 was damaged. No breaks in wiring but looks like wire got snagged under a motor compressed enough to make electrical contact. In hindsight, probably a stupid idea to route wiring for the led's round the motors so decided to seperate them and route underneath the frame instead. Not as clean looking but makes it easier to swap out parts. Ordered a Matek F405 as a replacement.
  • Connector on my Eachine vtx03 ripped off the board, managed to replace it and got a sma pigtail to use the Aomway antenna but the pigtail broke when i was zip tieing it to the frame so installed an Eachine tx801 instead as it should hopefully be more durable.
  • Also replaced ia6b with a ia6c. Its more compact and lighter as it doesn't have the cylinders on the antenna's so they will slide inside the antenna mount without having to heatshrink them. At least with all these replacements i have backups and spares for another build!

04/01/2018

Flight controller was very delayed so have only just continued work on it. Just waiting for switch to arrive to complete the LED wiring and then it'll be done :)

  • Installed FC, VTX and depinned Turnigy ia6c. Mounted receiver antenna's between arms after much procrastination about which method to use (antenna mount sticking out the back or zip tied on arms)
  • Swapped hs1177 camera case as the original plastic screw holes weren't good and the hs1190 case has metal threads for the screws. Unfortunately it's wider so was unable to use the frame side panels. Probably should have got a runcam swift or hs1177v2 alloy case instead. Also swapped 2.8mm lens to a 170 degree fov Go pro lens as recommended by Joshua Bardwell for reduced fisheye distortion over a normal 2.5mm lens. This makes it very similar to the Rotor Riot special edition hs1177.
  • Changed the routing of the led wiring to so there is less to snag underneath.
  • Soldered a 4 pin header to the rear led buzzer for easy cable removal.

10/02/2018

Finally done!

Photos

Part List

Frame

Martian II 220 220mm 4mm Arm Thickness Carbon Fiber Frame Kit w/ PDB For RC Drone (90 builds)
Banggood.com
$31.58

Flight Controller

Matek F405-OSD BetaFlight STM32F405 Flight Controller Built-in OSD Inverter for SBUS Input (102 builds)
Banggood.com
$27.99

ESCs

4X Racerstar MS Series 35A ESC BLHeLi_S OPTO 2-4S Supports Oneshot125 Oneshot42 Multishot (5 builds)
Banggood.com
$36.99

Motors

4X Racerstar Racing Edition 2205 BR2205 2300KV 2-4S Brushless Motor For QAV250 ZMR250 RC Drone FPV Racing (76 builds)
Banggood.com
$33.59

Propellers

DALPROP T5046C Cyclone (2 CW 2 CCW) (392 builds)
Pirofliprc.com
$2.99

Propellers

2 Pairs DALPROP 5045 V2 Bullnose PC Propeller CW CCW For 250 280 RC Drone FPV Racing Multi Rotor (5 builds)
Banggood.com
$1.99

FPV Camera

Foxeer HS1177 V2 600TVL CCD 2.5mm/2.8mm PAL/NTSC IR Blocked Mini FPV Camera 5-40V w/ Bracket (25 builds)
Banggood.com
$23.59

FPV Transmitter

Eachine TX801 5.8G 72CH 0.01mW 5mW 25mW 50mW 100mW 200mW 400mW 600mW Switched AV VTX FPV Transmitter (21 builds)
Banggood.com
$14.95

Antenna

Aomway 5.8GHz FPV 4 Leaf Clover AV Transmission RHCP Antenna 1 Pair Blue Red w/Canopy For RC Drone (114 builds)
Banggood.com
$11.99

Receiver

Turnigy iA6C PPM/SBUS 8CH 2.4G AFHDS 2A Telemetry Receiver
Hobbyking.com
$9.89

Batteries

AHTECH Infinity 4S 14.8V 1500mAh 85C Graphene LiPo Battery XT60 Support 15C Boosting Charger (81 builds)
Banggood.com
$25.67

Power Distribution

Realacc/Matek PDB-XPW 5V 12V Dual BEC PDB Built-in 140A Current Sensor with XT60PW Socket (15 builds)
Banggood.com
$6.99

Misc Parts

SHOOT 170 Degree Wide angle M12 Screw Thread Replacement Camera Lens for Gopro Hero2
Banggood.com
$5.25

Misc Parts

Matek LED Tail light WS2512B with Loud Buzzer Dual Modes for RC Drone FPV Racing (41 builds)
Banggood.com
$5.20

Misc Parts

Realacc Carbon Fiber Battery Protection Board with Tie Down Strap for X Frame kit for RC Drone FPV Racing (10 builds)
Banggood.com
$4.05

Misc Parts

M3 Aluminum Alloy Fender Bumper Engine Dress Up Washer Silver Gray 20pcs
Ebay.com
$3.92

Misc Parts

Matek LED X2/5V Motor Mount for 1806 2204 2206 Motor Multicoptersv Blue for RC Drone FPV Racing (4 builds)
Banggood.com
$3.15

Misc Parts

Vervangingshoesje voor de Foxeer HS1190 Alleen pijlcamera hoesje
Banggood.com
$2.89

Misc Parts

4PCS Silicone Anti-vibration Motor Pad in for 13XX 14XX Series Motor Black Red RC Drone (3 builds)
Banggood.com
$2.72

Misc Parts

KINGKONG / LDARC Universele motordekbescherming voor 22-serie motoren M3 * 8 voor RC Drone FPV Racing (5 builds)
Banggood.com
$2.55

Misc Parts

4 PCS ESC Protective Case for DYS LittleBee 20A 30A ESC (11 builds)
Banggood.com
$2.50

Misc Parts

Eachine Falcon 210 250 Pro Front Spotlight Reflector Lamp LED Night Light (2 builds)
Banggood.com
$2.49

Misc Parts

XT60 Male Plug 12AWG 10cm With Wire (22 builds)
Banggood.com
$1.99

Misc Parts

FrSky 2.4G Receiver Antenna Fixing Seat QAV Receiver Antenna Fixing Seat Transparent (3 builds)
Banggood.com
$1.98

Misc Parts

Glass Fiber Insulation Board for Martian Frame Kit for RC Drone (3 builds)
Banggood.com
$1.59

Misc Parts

Silicone 2mm Thickness Non-slip Mat Battery Anti Skid Pad Battery Mat for RC Drone (19 builds)
Banggood.com
$1.46

Misc Parts

Wire Mesh Guard Black 6mm (2m) (3 builds)
Hobbyking.com
$1.38

Misc Parts

Suleve™ M3AR3 10Pcs M3 35mm Knurled Standoff Aluminum Alloy Multicolor (6 builds)
Banggood.com
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Discussion

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Aurora130   Feb 14, 2019  

Very cool build. It just so happens that I am running the exact same props and moters, down to the color! I've kind of beeen wondering why more people are not getting mini 1200TVL cameras. There are 4 or 5 different ones and they have very cheap prices. It would interesting to see a comparasin, picture quality wise, between 600 and 1200TVL.

Narbicus   Jul 30, 2019 

I think its because most 1200tvl camera's are widescreen and use CMOS sensors. A lot of people still prefer the classic 4:3 600tvl CCD camera's like the hs1177 and swift. I've just got a widescreen 1200tvl Foxeer Monster Pro for my new build and i'm liking it :)

moegunnery   Feb 10, 2018  

yo, that is an amazing build ! i have been scouring the internet for hours to source 2 parts you have, where did you acquire the countersunk washers (all the ones out there are just rounded, and also the headlight/ and face plate?

Narbicus   Feb 10, 2018 

Thanks dude :) Hoping the weathers going to clear up soon so i can get some air time!

I got the washers off ebay from a shop called 'milancentral' http://stores.ebay.co.uk/milancentral if you do a search for 'm3 aluminium washer' you'll eventually see them, they are not the countersunk type so you can use the ordinary 'flat' hex screws like the ones provided with the frame. They stock different colours and in smaller quantities too. They are kinda expensive for what they are but i think they look cool and will hopefully help the frame survive more crashes. I've added them to the misc. parts list. https://www.ebay.co.uk/itm/M3-Aluminum-Alloy-Fender-Bumper-Engine-Dress-Up-Washer-Silver-Gray-20pcs-/362034650613?rmvSB=true

Unfortunately that headlight is discontinued, got it off ali express https://www.aliexpress.com/item/Eachine-Falcon-210-250-Pro-Front-Spotlight-Reflector-Lamp-LED-Night-Light-For-RC-Camera-Drone/32710656731.html?spm=a2g0s.9042311.0.0.hofV8E
Wish i had bought some spares now... if and when it does get smashed i found some alternatives -
https://www.aliexpress.com/store/product/High-Quality-Eachine-For-Aurora-90-100-Mini-FPV-Racer-Spare-Part-WS2812-LED-Board-LED/2534028_32793239884.html?spm=2114.12010615.0.0.6cce56bdPlapOk
https://www.aliexpress.com/store/product/Hot-Sale-Spare-Part-3W-12V-LED-Head-Light-For-Eachine-Racer-250-RC-Drone/2534028_32760277607.html?spm=2114.12010615.0.0.6cce56bdPlapOk
https://www.aliexpress.com/item/New-6-LED-Light-Kit-2-White-2-Red-2-Blue-for-1-10-1-8/32840108585.html?spm=2114.10010108.1000013.1.31934488jVN5rr&traffic_analysisId=recommend_2088_1_90158_iswistore&scm=1007.13339.90158.0&pvid=3e384a8e-7b34-427a-b236-3642d831a361&tpp=1

Maybe you could make a shroud or mount out of plasticard or 3d print one? Hope this helps :)

moegunnery   Feb 13, 2018 

thank you for the response, im building a martian as a first build and there is no reqal rush to have it done, just to have it done right, the washers are a definate, they should offer more surface area over the holes in the frame for the screws, the headlight is an added bonus. one more question if you dont mind me asking: is the headlight contollable on the transmitter ? p.s amazing build !!!!!!

Narbicus   Feb 18, 2018 

Yeah, the standoff's are wider than the stock so in conjunction with the washers the extra surface area will stop the carbon splitting as easily. For the money its a great frame, spares are easily available - do wish it had slots for battery straps though!

I did buy a cheap rc controlled switch which i experimented with but it had 2 modes and by default it would flash when plugging the battery in so would have to be switched to off or fully on each time so i decided to just connect them to a small slide switch to keep things simple. :)

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