Archives: Builds

I’m sure this tip will be useful for some of you out there who use Airbot’s fantastic flight controllers like the OMNIBUS F3 AIO Pro or OMNIBUS F4 AIO and have some trouble with flickering or disappearing OSD.

To get clean video without noise you actually have three options (to power the camera).

1. Get clean power from a PDB with some kind of filtering.
2. Get clean power from OMNIBUS FC.
3. Get clean power from your VTX (video transmitter).

My choice was to get the 5V for the camera from my VTX because it delivered very clean power and the video was perfectly clear on my previous builds with Foxeer TM25 (40CH 5.8G 25/200/600mW Switchable VTX). However I had the problem that my OSD from OMNIBUS F3 Pro was flickering when applying throttle. It turned out that the ground circuit is not closed properly. After fixing that I had extremely clean video and no OSD issues at all (see wiring picture).

Video Wiring

Please note that this is not a workaround for something that is broken on the FC. It’s just a fix for something I messed up.

Shout out to Airbot for providing the OMNIBUS F4 for this “alien on steroids” build.

Steroids I

Steroids II

Steroids III

Featuring EMAX red bottoms 2600KV and Racerstar 30A V2 BLHeli_S ESCs.

Racerstar 30A ESCs fit perfectly fine inside the fairings. I can’t wait to test the super cheap Racerstar motors.

Helix 5″

I should probably fly more and stop building…

Alien Build I

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I like the frame so much that I designed a GoPro session mount for it. Take the STL file from Thingiverse. This is my best and cleanest build until now. The Matek PDB with XT60 connector on the board and linear regulator on the 12V pad for clean video are super cool.

https://youtu.be/l7_qQ8kB1ps

• V2 220mm version of the Martian frame
• Emax RS2205-2300 2205 2300KV Racing Edition motors
• OZE32 AIO flight controller with OSD
• Matek XT60 power distribution board 5V an linear filtered 12V
• Foxeer HS1177 camera with 2.8mm lens
• LittleBee 30A ESCs
• Lemon RX satellite
• Aomway 5.8GHz clover leaf antenna
• 5045 Kingkong propellers

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PDB replacement was necessary due to horrible video noise and PDB burning (probably caused by screws contacting the boards electronics).

Diatone ZMR 200 is ready to fly.

• Diatone ZMR 200 frame
• Sunnysky 2204 2300KV motors
• SP Racing F3 flight controller
• MXK Power Distribution Board with OSD + 5V an 12V BEC
• Foxeer HS1177 camera
• Diatone camera mount
• LittleBee 20A ESCs
• Lemon RX satellite
• 5045 Kingkong propellers

The power distribution board is a complete fail, don’t buy it. It burns out or if you are lucky you get horrible video noise and the OSD vanishes when applying throttle. There is a fix for this: soldering external capacitors. However I don’t feel like fixing complete boards like this with huge capacitors which make the build look like crap. This quadcopter needs a rebuild with new PDB and maybe even a cheap FC with OSD.

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