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KK2 Board Mounting - Word of WARNING

Discussion in 'Multirotor' started by Tiger, Jul 17, 2012.

  1. Tiger

    Tiger Registered

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    I'm posting this since most of us are using the DJI frames right now.  One of our nameless flyers just poofed his new KK2.  I found out how it happened last night and thought it was worth passing along.  The top of the DJI bottom frame plate is "+" (pc board).  He mounted his KK2 to the plate with two layers of double sticky foam tape.  As soon as he pushed a few buttons, one of the header pins on the bottom of the board punched through the foam and hit the "+" plate.  Poof - Let all the smoke out!

    ...Tiger
  2. GPS

    GPS Registered

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    So far it looks like the KK2 boards are not very good so maybe letting the smoke out might not be such a bad thing.  ;)
  3. Tiger

    Tiger Registered

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    "not very good"?  Not sure why you are saying that.  I don't really have anything bad to say about the board at this point.  The only one that's even tried to fly one was Jason last Saturday and he is a total newbie so I wouldn't make any judgements based on that.  I should have mine in the air tomorrow.  We'll see how that goes.  I'm still really excited about the board.  Even if it's not the board to beat right now, I'm confident it will be soon.

    ...Tiger
  4. GPS

    GPS Registered

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    Pelagic Pilot is flying one also and I watched him fly it this week.  I believe his results also demonstrate that the KK2 is by far no Naza killer.  He told me he felt that the KK1 was a better flying board than the KK2.

    Maybe the hardware on the KK2 board has potential, but they have a long way to go before it fly's even remotely close to a Naza.  It looks to me that they released it before they got their software right.

    Let's see what happens when they get another version of the software out.  But at the rate that new flight controllers are hitting the market you never know what else will become available in the mean time.
  5. Golden Child

    Golden Child Moderator Staff Member

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    The developer of the KK2 admitted he made a mistake in the firmware. He based it on the very high frequency (or maybe it was very low - can't remember) ESC's he was using which are far from standard. If you read through the links Tiger provided and get to the developer's explanation of the issue, you will understand that the problem is known, it is being worked on, and new firmware will be released as soon as possible. That's good enough for me :) There is nothing wrong with the board, it is an excellent product with more features than most people will use. True, it is not a Naza killer - the Naza works flawlessly and is an excellent product, but it's $400 with the GPS option. A big nut to swallow.
    I agree that with controllers hitting the market at the rate they're going it is a confusing time to be building multirotors. But at $28 and the promise of a huge community just waiting to get their hands on the open source code, its hard not to want one ;)
    My two cents worth :)
  6. Pelagic Pilot

    Pelagic Pilot Registered

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    I think it was based on a really high Hz, like 600+ Hz ESC's

    I think I am converting my tri to a quad so I can work on dialing it in without dealing with the tail yaw stuff. Mine seems as though there is a delay in the action vs reaction. When you tilt the aircraft it seems as though the low side prop does not speed up until the thing has moved about an inch+. It should speed up instantly with the slightest movement. This makes it loose in the air. any more gain and it jumps all over.
  7. GPS

    GPS Registered

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    It looks to me that the KK2 board with the existing firmware will only work with SimonK flashed ESCs and nobody around here has those so far.
  8. irish

    irish Registered

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    anything better the naza in the wind  naza + light breeze = wobble bobble  all that i have seen and trid even the ones tuned by atlanta hobby lol 
  9. Golden Child

    Golden Child Moderator Staff Member

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    Hey Irish, thanks for joining the forum! Several of our regular posters are using the Naza and I have seen it fly rock solid in some very stiff winds out at our flying field in Kerby. Look through some of GPS' videos, especially the ones at Kerby, and you'll see smooth flying and some great scenery. If you have one and want some help tuning it I'm sure you'll get plenty of offers from our many excellent pilots ;)
  10. Tiger

    Tiger Registered

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    Irish - Rick and I fly the NAZA a lot in the wind.  Seems like all we have this summer is wind.  I've never seen any problems with wobble.  If that's an issue for you, you just need to play with your gains a little.  The best way to do that is map your gain channel to a knob on your transmitter (if you have a knob).  Then you can play with the gain while you're flying and tweak it in the way you want it.  Then with you have what you want, read it out on your computer and hard program it into the NAZA.

    ...Tiger

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