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Didn't say it CAN'T be done, but it definitely takes pilot intervention. I'll bet the 1st 3" off the desk is where most LHS's make their $$ on replacement blades from the noobeez. The NAZA is OK, but if you let it sit there long enough I think it'll spill without a human around.
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Humm, my 450 flies 6 inches off the top of the 3" grass just fine. It will hover with no inputs as long as I get it stabilized. I have not left it too long, just long enough to get a cup of coffee. Fall is almost here and I am planning to use it as my leaf blower.
Seriously, I'll see how long it hovers just off the deck next time I go out. I got a lot of practice flying close to the deck when I had the flip problem. I knew it couldn't flip on its back as long as it was less than its arms length from the ground. Probably flew a dozen packs like that. The flip problem appears to have been due to the connectors as others have found out. I am using GB Ox-Gard conductive paste from now on on all connectors. |
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Yes That WorksQuote:
It's just hard to explain to someone inexperienced, and you do have to experience the adding of trims to understand it. I did it when I first got the F450 ARF kit. Airframe kept drifting and needing trim every time I powered up. I looked at my transmitter screen, and the ail trim was almost maxed out... |
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Ground FlipQuote:
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A quick question about Naza gimbal output: i recently bought a belt driven gimbal, when i plug it into my naza the servo dont stop turning (360• servo i guess) so is it impossible to stabilize this kind of gimbal with a Naza? Any recomendation on a stabilizer for my gimbal?
Thanks |
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360 Degree ServoQuote:
Look at page 26 of the Naza Manual. See where you can set Max/Center/Min on the Assistant for servo travel limits? That's what you need to reduce. I think a 360 degree servo takes the pulses sent a 90 degree servo and spreads them out over 360 degrees (x4). So, you need to reduce the limits to 1/4 of what they would be for a 90 degree servo. Your transmitter (or Naza) can't send anything but the same signals regardless of the servo being controlled. If anyone else knows better, please chime in... All of this should work if your servos were modified for 360 degrees proportional rotation, and not 360 degrees continuous rotation. If the gimbal came with these servos, they should not be continuous rotation servos (used on robots, etc.) |
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Last edited by T J Gilbert; Sep 14, 2012 at 08:41 AM.
Reason: Added continuous rotation comment
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Oh, I am sure of that. But when I was in the "flip" phase I noticed right away that if I was very near the ground it would hit the dipped arm and not have the more vilolent chicken dance.
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Interesting!! Naza is lacking
Too bad they had to throw the phone idea in the mix!! |
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Quote:
I've used the DIY frsky kit and soldered it in before. It does make a clean looking system. With the module above (link), all you have to do is take out the stock 9x module (cut antenna wire) and plug this one into the pins on the back of the radio. The frsky module is the transmitter and telemetry in one. May look weird, but for folks that like it simple, can't beat it. You can always take off the old antenna if you wanted. |
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Tip for aligning props
You know, once in a while I still have little "accidents" where I tip over but nothing seems broken. Well, I noticed that one of the props didn't look "level". So I aligned the prop with the arm and put a ruler on the arm to measure the distance from the arm to the tip of the prop. Then I rotated the prop 180 to check the other blade. It was a different distance so I replaced the prop. There was another prop that was also off a tad. I think the proper distance is about 1 1/4". This is a simple check to perform. If a prop is off not only will it probably effect the performance, but it may be an indication that that prop has been "stressed" and should be replaced.
Plus, I just noticed that one of the props was "bent" right out of the box. Despite some of the bad reports, the DJI props seem tough to me, and I have tested them against the ground more times than I wish I had. |
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Last edited by u2builder; Sep 14, 2012 at 09:07 AM.
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Chicken Dance
Like a chicken dying when it's head's been cut off...
Lots of flopping and flailing. When an RC heli is grounded, out of control, the "chicken dance" occurs. I hate to watch it. It's sad. It's truly like something that was once vibrant is dying. Result is usually total self destruction. |
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