Martian III Rebuild

By trif55 on Jun 02, 2017

2  470  2

I'll put my first build up shortly and link it here or something but this is the rebuild, adding comments as and when I can on different parts:

It went smoothly, daisy chained both OSDs, added a mic, really pleased with how solid the XT60 feels, see pics for more details :)

So with the Matek PDB the solder pads sit right above the bottom plate where I like to mount my XT60 for strength, so close in fact there was no room to run a wire or anything, a piece of wire a few mm long sidways out of the XT60 ends up being one big solid lump of solder, you may be able to see it in the later pictures of the build, with a cable tie around it the PDB was still providing most of the support and would have probably been trashed if i'd had a bad crash so I tried a few alternatives and ended up with a coil of 12 gauge wire and two cable ties per side,

The PDB has it's own OSD and I also use the betaflight OSD as I've got a barometer and like to see my throttle position sometimes and plan on using the PID tuning options, my video seems to work quite well first going into the Metek, then into the FC then to the VTX so i'm very pleased with that! It also gets me around having to run (And overheat) the FC powering it directly from the battery to get voltage on the betaflight OSD

I noticed the build page here suggested pics of stacks are very useful, hopefully what i've got here is ok, I never really took a side on pic and I know have my twig proofing on so can't really show it (my last FC died when some sticks removed a few SMD components from the board!)

The action camera mount.... Definitely always buy an HS1177 style camera that'll fit your frame's mounts!!!! dear me!......... so after the bodge on my first build I ended up getting some bits of 2mm aluminum sheet and drilling it out and bending it to make the mount (it's held together with M2 nuts and bolts) it's really stable now but I think it weighs about 15g on it's own + 11g for the camera!

Oh with props on it's 360g (without battery or action camera)
out of interest, with the runcam3, 3d printed holder and the Turnigy Grapene 1500mah 4S All Up Weight is 660g!


Part List


Martian III 220 Carbon Fibre Quadcopter Frame
See Site

Flight Controller

Omnibus F4 V6 Flight Controller (5 builds)
See Site


4 x Chaos BLHeli_S Dshot ESC (11 builds)
See Site


4 x Racerstar BR2205 2600KV 2-4S Brushless Motor CW/CCW For QAV250 ZMR250 260 280 RC


DALPROP T5046C Cyclone 5" CW and CCW TRI Blade Propellers UK Seller

FPV Camera

Eachine 1000TVL 1/3 CCD 110 Degree 2.8mm Lens NTSC PAL FPV Camera Switchable UK

FPV Transmitter

TS5823S Micro VTX 5.8G 200mW 48CH Mini FPV Transmitter SMA RP-SMA for RC Drone (6 builds)


Aomway 5.8GHz 4-Leaf Clover Antenna Set for TX/RX (RP-SMA) (RHCP) (60 builds)


Turnigy iA6C PPM/SBUS 8CH 2.4G AFHDS 2A Telemetry Receiver


Turnigy Graphene 1500mAh 4S 65C LiPo Pack w/ XT60 (19 builds)

Power Distribution

Matek Systems HUBOSD8-SE 9-27V PDB W/ STOSD8-SE 5V&10V Dual BEC for RC Drone (37 builds)


Flysky FS-i6X 2.4G 6CH Transmitter TX For Helicopter Fixed-wing Glider Multi-axis RC Drone Quadcopter (20 builds)

HD Camera

RunCam 3 64G HD 1080p/60fps NTSC/PAL 155 Degree Wide Angle WiFi FPV Camera (26 builds)

Misc Parts

2017 USB 2.0 Capture Card Easycap VHS to DVD Converter Audio Video Adapter

Misc Parts

170° Wide Angle DV Lens Replacement for Gopro Hero 2 3 SJCAM SJ4000 SJ5000 NEW

Misc Parts

RP-SMA Male Jack Center to RP-SMA Female Right Angle RF Coax Coaxial Adaptor X 2
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Yukondokne   Aug 15, 2017  

I have this frame and fpv camera. What did you use to mount it? I'm super unhappy with how mine is mounted.

trif55   Apr 09, 2018 

Sorry, only just saw this, I ended up with a DIY bit of 2mm Aluminium witha hole in and a back plate bent to 20degrees

Recently got a 3d printer, there are a ton of mounts on Thingiverse, I designed my own but it's similar to those on there

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