Mudders 540g stupid question build thread

[Mudders]

I told you this was my stupid question thread, turns out the 'ele' needed reversing on my TX, all working now  :-[ :-[ :-[

In my defence, calibrating a up/down movement on a left/right bar is always gonna suck!

Muds  :)

[hase2]

Don't worry - we ALL been there. ;)

[Mudders]

Lol  :+

So next up is something I'm stuck on. I want to use a 12v FPV  camera http://www.fpvgear.co.uk/lumenier-cu-690-ultra-690tvl-ultra-wdr.html with  naza iOSD and go pro 3BE camera on the gimbal, I want to be able to switch camera views in flight, I'm using a 4s pack, I'm not bothered about seeing the OSD through the goggles on the GP3.

The voltage thing and how it's all connected up is what confuses me, 12v and 5v?, what leads etc?

Muds  :)

[hase2]

Just get a 12v (ish) regulator.
Tap into the main flight battery and power the camera and VTX from there.

connect the video cable from the camera to the video in of the iOSD and the iOSD video out to the vtx video in.

[Mudders]

Thanks, sounds easier than I thought.

She's just about flight ready now, Naza is all set up, I'm confident it's good. So just the gimbal to balance, FPV camers, iosd, reg and Alexmos board to get and fit.

Muds  :)

[Mudders]

I had a test fly today, I had to lower the gains in 3 steps but fourth attempt seem PDG!

After 12mins of flying around and hovering I out 4000mah back into the 5000mah pack, perfect.

I had another flight with the camera on (gimbal motors taped to stop rotation) and the results reveled some 'jello'. On close inspection it seems the roll motor has a small amount of play fore and aft in the shaft. I might be able to take this slop out with some wafer thin washers behind the circlip on the back of the moot (If I can find some somewhere?)

Mostly though, it real nice to fly, a bit like a limo!

Muds

[Mudders]

Thanks for the help guys, I've finished building my first kit quad, and learned loads. I have a new pair of attitude sd goggles so no excuses, my first FPV flight awaits as soon as the rain stops and the wind drops to 'half a chance' levels.

I put a vid switcher on so I can frame the go pro, and added manual tilt/roll to TX from the alexmos board. It all seems ok although I expect it to require some bodging with the PID's tuning.

Expect a short flight vid soon with a long sweeping up the bits session to flourish.

Muds  :)

[Coyote]

Looking good Mudders, looks like you missed a screw on the gimbal`s IMU sensor box though :)

[Mudders]

Cheers Coyote, yep I fixed that. The box is milled out to accept the IMU but not enough, so I cut a square out of the lid to let the IMU socket. Now the lid sits flat. That's the only thing that's wrong with the kit.

Muds  :)

[Mudders]

I should add that I'm using Flyn's antennas so I'm expecting some impressive range  ;)

[Mudders]

Another 540g finished, this time for a mate.

[hase2]

Looks good mate. Makes me wanna tag along and compare it to the disco pro.

[electricmick]

Nice build. Just a suggestion: as you have got some undercarriage, you might get a better picture and cause less interference if you swing the vtx antenna down below the quad instead of it being so close to the GPS receiver. Most of the time you fly with the quad above you hence, in this position, the vtx has a clear line of sight without motors and batteries getting in the way. Try it both ways beyond 500m as see if there is a difference.

Mick

[Mudders]

Cheers for the tip, I was unaware the vrx might interfere with the GPS. I have not had any issues so far with my 540, but I haven't really been more than 200m away.

Now it's back to making a decision on a fixed wing toy for me  :-\

Muds  :)

[Mudders]

Here she is all lit up

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