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What is the purpose of the Anti-Drop Pins?

Discussion in 'Pro/Adv Discussion' started by Kit Walker, Oct 10, 2016.

  1. Kit Walker

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    I apologise if this question seems simplistic but;

    1/ what do the anti-drop pins actually do?

    2/ why are only 2 fitted considering there are 4 hole positions or should there actually be 4 fitted?

    3/ do they ever get changed and why/when?

    4/ how often, if at all, do the rubber connectors get changed?

    Thank you,

    Pete.
     
  2. Amigorick

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    The anti-drop pins are just that, safety devices that prevent the camera from detaching from the drone. Only two are needed. I actually added two small zip ties loosely in the other two positions to act as an extra safety feature. The rubber dampers should be replaced if they tear or appear to be stretched and the camera plate appears to be tilted at an angle.


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  3. msinger

    Approved Vendor

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    They keep the gimbal attached to the Phantom. The rubber balls are enough to hold the gimbal in place, but a rough landing would cause them to pop out without the pins in place.

    DJI has only ever fitted two of them. I'm assuming they only use two since it's enough to keep the gimbal from releasing.

    You only need to replace them if they are damaged in a crash and/or damaged when removing and reattaching the gimbal.

    You should replace them if they are damaged. Under normal use, you shouldn't need to replace them often.
     
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  4. tcope

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    You only need two because they do/can transfer some vibration the camera. Two is enough to prevent the camera from falling off if it's detached. So the fewer the better.
     
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  5. MRIDOC1

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    I tied loops of mason's twine loosely through the empty two rubber isolators as a precaution, and tucked the knots into the isolators. Don't put any tension on those, just loose loops. Adds almost no weight.
     
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  6. toddster

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    I am currently using clear dental floss. Very light weight and cheap.

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  7. Sevyn13

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    The drone comes with extras, I just used those in the other two holes.


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  8. gunslinger

    gunslinger Moderator
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    We used to use wire ties on two opposing corners, on the P2V, and tied loosely so they wouldn't add any vibration.

    -slinger
     
  9. Sky Wombat

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    I used fishing line. Lightweight and strong.
     
  10. With The Birds

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    Cut the two off that are installed and replace with lossely fitted cable ties. The cable ties provide better security when needed and transfer less vibration. When my camera was replaced (warranty performed by DJI service agent) thats how it came back.
     
  11. Richard R

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    I agree. Anytime the bird is moving, inertia could pull the gimbal down agains the drop pins creating a rigid connection between the bird and gimbal that could increase vibration transmission to the camera. any light, strong and flexible material (cable ties, dental floss, etc.) make, IMO, a better safety tie. I personally like dental floss. It's light and flexible, cheap and amazingly strong. Just make sure your knots are good as it can slip if not tied properly.
     
  12. matti

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    I wonder if an occasional jam in the factory installed anti-drop pins is the root of tilted horizon?
     
  13. SimonH78

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    If you have all 4 in the front right ones get in the way of the "standard gimbal clamp", making fitting awkward - just leave as they arrive with the 2 in - one front left-back right when looking at the camera lense :)
     
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