Martian II 220

By Redleg on Jul 06, 2017

4  728  10

My very first full build. I went with very simple and straightforward components with a large frame that would give me ample space to work with. I decided to go with separate components for the PDB, FC, and ESCs rather than going with the AIO or 4-in1s, which helped me gain a better understanding how they all function together.

I'm very proud that everything went smoothly throughout the entire process, from assembly and wiring, to flashing BF and BLheli Suite, and getting everything set appropriately in BF Configurator. I feel like I really lucked out.

Initial impressions

Took her out for her maiden flight and everything went well. Handles great, especially coming from the Wizard 220 that I started with.
Started with a few LOS maneuvers, but quickly switched to FPV and put it through the paces. By the end of the 3rd pack I was rippin around full speed. No major issues yet besides some video interference which I'll be addressing below.

Post maiden flight critique

Standard tune was sufficient, but it felt a lot better when I bumped up the rates. I'll want to learn more of how to properly tune the PIDs eventually, but think I'll wait until I've put in some more hours with the stock ones so I'll be able to better feel the differences.

There's definitely some video interference issues I've got to clean up. Sometimes it's pretty clear, but most of the time I get increasing amounts of horizontal bands and general static with throttle or when I get out farther than 60m. Occasionally, especially during some maneuver that's stressing the motors, the entire video stutters, blacks out momentarily, then reappears. My assumption is that the interference is related to the motor and ESC noise.

I'm going to try out an LC filter and some low ESR capacitors to see if that helps. Any other suggestions would be appreciated.

Cheers!

Photos

Discussion

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7uvoK   Feb 12, 2018  

Did you have any issues getting your RX wired and communicating to your FC? I have a Betaflight F4 and FS-IA6B, and I have tried iBUS and PPM onevery single UART. No luck...

7uvoK   Feb 12, 2018  

Did you have any issues getting your RX wired and communicating to your FC? I have a Betaflight F4 and FS-IA6B, and I have tried iBUS and PPM onevery single UART. No luck...

7uvoK   Feb 12, 2018  

Did you have any issues getting your RX wired and communicating to your FC? I have a Betaflight F4 and FS-IA6B, and I have tried iBUS and PPM onevery single UART. No luck...

Lam3tta   Jul 13, 2017  

Martian buds! Nice build! I see we both got antennas from those Room 412 guys. These motors are great for the price right!?

Redleg   Jul 13, 2017 

Twinners! Yeah, I've been pretty impressed with the Room 412 Pagodas and these motors. Great performance for the price! Any thoughts on what you might do for your next build?

Lam3tta   Jul 13, 2017 
1

Now I'm broke! haha. It will be a while. Probably just gonna pick up a bunch more lipos for now.

Cryptid9   Jul 08, 2017  

Great build! In the final stages of my first build with a martian

Redleg   Jul 11, 2017 

It's been a great frame so far. let me know how yours turns out!

Ietse   Jul 06, 2017  

awesome build! good to hear everything went well with the soldering and flashing!
i'm in mockup mode for my first quad.
another thing what's grinding my gear is the FPV goggle/box option. how did you sort that out and what did you get?
Happy flying!

Redleg   Jul 06, 2017 

Thanks! I have some cheap box goggles (Eachine EV800) that I got when I was first starting out. They're not too bad for a starter set. I like viewing one screen instead of two tiny screens, but they are quite bulky to haul around and look extra crazy to bystanders. I'm looking to upgrade to the Aomway Commanders when they're finally in stock to have some lower profile goggles and diversity.
Good luck with your build!

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