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Shakes while filming with Arris Gimbal

Discussion in 'Photos and Video' started by digicrew, Dec 22, 2013.

  1. digicrew

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    Hi everyone,

    I am having some success with the Phantom and a GoPro Hero3 Black, mounted in an Arris Gimbal.

    80% of my vision is fine. I do, however, regularly encounter the shakes:

    http://youtu.be/OvtfR8MSBek

    Do any of you have any idea as to what is causing this? It only seems to happen when I am going forwards.

    Many thanks,

    David
     
  2. Fair Game

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    Snap David!

    http://www.youtube.com/watch?v=ER8ye8JePqk

    My Arris was supplied with the wrong base plate for the Phantom, I was told that I should attach it with a single screw. Sometimes the footage is okay but more often than not I get this.
    I complained and they sent me a different Gimbal. A Storm.
    Fits okay but has a lean and does not hold camera level. I have seen this complaint before about Storm Gimbals. And it gives same shakey video.

    Waiting for Helipal to reply.

    Wish I had bought the Zemuse
     
  3. DeweyAXD

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    Almost certainly a cause of the anti-vibration spheres beeing too soft. I had this issue on my FYG3 Gimbal on my F450. Ended up removing the anti-vibration board fully (doable on a G3) and it was soooo much better.

    Before:
    [youtube]http://www.youtube.com/watch?v=BJ7GOfF335A[/youtube]

    After..
    [youtube]http://www.youtube.com/watch?v=vvydJ4MokUA[/youtube]

    I think you can get firmer spheres for the Arris fairly easily (ebay).

    The only other thing it could be is oscillation caused by too high gains... unlikely IMO on a Phantom. See my 450 blog if you feel it is that... i talk about tuning them: http://www.rcgroups.com/forums/showthread.php?t=2036593
     
  4. digicrew

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    Any progress with a fix to your problem?
     
  5. Fair Game

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    No. I think I am being ignored by Helipal. I will give them a few days into the New Year just in case they are on holiday.

    Looking hard at the Storm Gimbal it seems to me that the damper balls are too soft. I swapped them for firmer ones and there was a slight improvement.

    However… With this gimbal the camera is well forward of the fuselage and sits in the down draft from the props and obviously gets buffeted. In fact movements in the gimbal seem to make the camera deflect the propwash first one way then the other which then in turn affects the Phanton which tries to maintain itself level. The two are probably consantly working against each other!

    I have removed it from my Phantom as I get better footage with the original DJI fixed mount.

    I will keep you advised.
     
  6. digicrew

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    Yes, I was actually thinking of removing the Arris Gimbal as well.

    Here's some of my latest vision:

    http://youtu.be/IVbnN0YRnLk

    Any ideas?

    Thanks for your responses.