Mockup

Martian II Starter Build

By CMIVMake on Nov 30, 2017

1  1  1

I'm new to drones and FPV flying and my goal is to use this build to get into the hobby. I've done a good amount of research and I think I've got a decent grasp on what I need to get started. My plan is to first order the QX7 transmitter and use it to train myself on computer simulators (Velocidrone, Liftoff) while I work on assembling the drone. If any experienced builders are reading this, I would appreciate any comments or suggestions you have.

In the Part List below, I've included just about everything I plan on buying (including the transmitter & goggles). For any other newbies following along, I have compiled a list of some additional tools and accessories I plan on using (most of which I already have):

  • Electrical Wire (14AWG for power, 18AWG for ESCs/motors, and maybe some 28AWG for smaller signal wires -- I plan on salvaging wire from old computer parts)
  • Wire Cutters/Strippers
  • Soldering Iron and Lead Solder (lead-free is more difficult to work with -- it melts slower and hardens slower)
  • Multimeter (for testing and troubleshooting)
  • Electrical Tape
  • Zip Ties
  • Allen Keys (metric)
  • Screwdrivers
  • Hex Nut Driver/Wrench (M2 thru M5)
  • Loctite (for frame/motor screws)
  • Pliers/Tweezers (various sizes)
  • Lighter (to harden ends of braided tubing and prevent fraying)
  • Heat Gun (for heat shrink tubing -- could also use a lighter if needed)
  • Sandpaper/Files (for smoothing the sharp edges of the carbon fiber frame -- do this under running water so you don't inhale the harmful dust!!!)
  • Power Supply (for battery charger)
  • AA Batteries (for transmitter -- I eventually plan to do the LiPo mod)
  • Glue Gun (for protecting/reinforcing various components)

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

Omnibus F4 Pro V3 Betaflight Flight Controller Built-in OSD Barometer SD Blackbox for RC Drone (13 builds)
Banggood.com
$26.49

ESCs

Anniversary Special Edition Racerstar REV35 35A BLheli_S 3-6S 4 In 1 ESC Built-in Current Sensor for RC Drone (112 builds)
Banggood.com
$34.05

Motors

4X Racerstar Racing Edition 2205 BR2205 2300KV 2-4S Brushless Motor Black For 210 X220 250 280 RC Drone (13 builds)
Banggood.com
$35.41

Propellers

GEPRC 5040 V2 5 Inch 3 Blade Propeller Triblade Props Colver Prop Blue Yellow Pink For FPV Racer (19 builds)
Banggood.com
$7.54

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 VTX03 Super Mini 5.8G 72CH 0/25mW/50mw/200mW Switchable FPV Transmitter (417 builds)
Banggood.com
$12.22

Receiver

FrSky XSR 2.4GHz 16CH ACCST Receiver Board S-Bus CPPM Output Support X9D X9E X9DP X12S X Series (480 builds)
Banggood.com
$15.99

Batteries

2 x AHTECH Infinity 4S 14.8V 1500mAh 85C Graphene LiPo Battery XT60 Support 15C Boosting Charger (81 builds)
Banggood.com
$51.34

Misc Parts

FrSky TARANIS Q X7 2.4GHz 7CH Transmitter - $97.99 |GearBest.com
Gearbest.com
$97.99

Misc Parts

5 Pcs AMASS XT60+ Male Plug Connector 14AWG 10cm Power Cable Wire (10 builds)
Banggood.com
$7.13

Misc Parts

ARRIS Fire Retardant LiPo Battery Portable Safety Bag 215*155*115mm
Banggood.com
$5.99

Misc Parts

Suleveâ„¢ M3NH7 M3 Nylon Screw Black Hex Screw Nut Nylon PCB Standoff Assortment Kit 120pcs
Banggood.com
$5.42

Misc Parts

127Pcs 2:1 Polyolefin Black Heat Shrink Tube Sleeving 7Sizes
Banggood.com
$4.58

Misc Parts

10PCS 26cm Eachine Lipo Battery Tie Down Strap (11 builds)
Banggood.com
$3.88

Misc Parts

4 PCS Realacc M3*7+4.5 Flight Controller Anti-Vibration Fixed Screws for RC Drone FPV Racing (49 builds)
Banggood.com
$3.82

Misc Parts

5m Strong Waterproof Adhesive Double Sided Foam Tape Car Trim Plate (3 builds)
Banggood.com
$3.20

Misc Parts

6m 8mm/10mm/12mm/15mm/20mm Wire Cable Sheathing Expandable Sleeving Braided Loom Tubing Black
Banggood.com
$2.99

Misc Parts

4 PCS 22XX Series Motor Silicone Anti-vibration Pad in for RC Drone FPV Racing Drone (11 builds)
Banggood.com
$2.12
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Discussion

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Mish   Dec 01, 2017  
1

That's all looking good to me!
I don't know how that ESC will be, probably fine, but I'd consider going with a PDB or AIO flight controller and using individual ESCs like Racerstar Lite S 20 or 30A (20A will be adequate), which wouldn't cost much more overall. You also won't have to extend the motor wires then. From my previous experience with Racerstar ESCs though, I think either option will serve you well.
The ZOP batteries might do, but depending on where you live you can probably find much better for a similar price. ZOP Power is pretty crap, the only one I received had a faulty cell and my friend's ones sag so badly. They will do but even on the Racerstar 2205, going better will be beneficial.
There are my thoughts! Happy to help further too. :)

CMIVMake   Dec 01, 2017 
1

My thinking on the 35A ESC was to "future-proof" the quad in case I want to upgrade to more powerful motors. I've heard arguments on both sides of the 4-in-1 vs individual ESC debate. The 4-in-1's seem to be popular for beginner builds due to cost/simplicity, but I understand there's a risk that I'll have to replace the whole board if something breaks.
Good to know about the ZOP batteries! I initially had the Infinity 4S 1500mAh batteries in my build, but they've been sold out on BG for the past week, so I was looking for alternatives. Sounds like I should just wait for the Infinity to come back in stock.
Thanks for the comments!

Mish   Dec 01, 2017 
1

If you can get the Infinity packs, the difference would be 'like night and day', for lack of a better analogy. I'd buy Infinity 4S 1500 70C and I race my packs hard (usually get 1:40 flight times down to storage on reasonably open tracks, Emax RS2205S, Turnigy Graphene 4S 1300 65C/Tattu 4S 1300 95C).

CMIVMake   Dec 01, 2017 
1

Sounds good. I've swapped batteries on my parts list. Thanks for the advice!