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Need NAZA Expert

Discussion in 'Drone Electronics' started by propflux01, Mar 16, 2017.

  1. ChrisRL

    ChrisRL Member

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    Dec 11, 2016
    Sherman Oaks, CA
    Posted by ChrisRL, Mar 20, 2017 #41
    Flux:

    "I've held it in my hand at full throttle and it fights me" - how does it do this?

    The reversed directions of half the motors should result in a very smooth acceleration to full throttle and no torque in any axis, even at full throttle.

    If there's a perceived torque, try letting that torque have its head and following it with your hand a bit in that axis, let the IMU see the movement and the FC compensate, causing an eventual oscillation.

    Could be your hand has been damping that torque out and obscuring the symptom.

    Best
    Chris
     
  2. propflux01

    propflux01 Member

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    Mar 15, 2017
    Central Arkansas
    Posted by propflux01, Mar 20, 2017 #42
    What I mean is I can hold it in my hand, it stays steady, when I move my hand, it fights me to stay upright, so to me it's saying the gyro is working as advertised. Now take my hands off it, let it fly away, it shakes like mad
     
  3. ChrisRL

    ChrisRL Member

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    Dec 11, 2016
    Sherman Oaks, CA
    Posted by ChrisRL, Mar 20, 2017 #43
    Okay, thanks flux, just double checking.
    When you held it in your hand, was there any shaking induced when you throttled up? Or was it in-flight only?

    It's starting to look like substitute-the-frame time for you, then.

    Best
    Chris
     
  4. propflux01

    propflux01 Member

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    Mar 15, 2017
    Central Arkansas
    Posted by propflux01, Mar 20, 2017 #44
    No shake, solid as a rock, moment I let go it shakes and just got progressively worse, harder and faster oscillations as time went by, then settles to the oscillation shown in my previous video.

    By the way, a very big thank you for keeping on this thread.
     
  5. ChrisRL

    ChrisRL Member

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    Dec 11, 2016
    Sherman Oaks, CA
    Posted by ChrisRL, Mar 20, 2017 #45
    You're very welcome, flux.

    Not many people know the lengths and depths of frustration/depression/angst we have to go through sometimes, just to identify the smallest, almost insignificant factor that stops our aircraft from flying properly, and it seems the smaller the craft, the more tiny the error that can create the largest amount of just-throw-it-in-the-bin feeling :)

    So if we just persevere, we'll get to the bottom of it. I have a feeling that this is how magicians work their way through a trick, micro-move by micro-move, until it looks natural and easy and then people think it's all done in a second or two (and we, of course, say nothing).

    Airframe next?

    Best
    Chris
     
  6. propflux01

    propflux01 Member

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    Mar 15, 2017
    Central Arkansas
    Posted by propflux01, Mar 20, 2017 #46
    Yes, a good description. And you'd think things like this wouldn't be an issue in today's technology!! So yes, new frame time for me....
     
  7. ChrisRL

    ChrisRL Member

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    Dec 11, 2016
    Sherman Oaks, CA
    Posted by ChrisRL, Mar 20, 2017 #47
    Onwards!
    Best
    Chris
     
  8. propflux01

    propflux01 Member

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    Mar 15, 2017
    Central Arkansas
    Posted by propflux01, Mar 20, 2017 #48
    This frame, the cheapest most flimsy you can get, was NAZA equipped and actually flew good. Problem was it's only a one-time crash vehicle. So I am cannibalizing its parts for another frame. I figured if the NAZA could handle this frame it should have handled that ZMR clone with ease.....
     

    Attached Files:

  9. ChrisRL

    ChrisRL Member

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    Dec 11, 2016
    Sherman Oaks, CA
    Posted by ChrisRL, Mar 20, 2017 #49
    Hey flux, what are your gains set at, in your Naza assist?
     
  10. propflux01

    propflux01 Member

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    Mar 15, 2017
    Central Arkansas
    Posted by propflux01, Mar 20, 2017 #50
    P 72
    R 70
    Y 70
    V 80

    AP 90
    AR 90

    These were the last tried settings. I have been up and down with them
     
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