DJI O3 Air Unit Jello - solved (with 'proto-putty'!)

Racing Quads, Self-builds & FPV
1

I have the GEPRC Darkstar 20 in the O3 version and, while I love the O3 footage, I have been less than impressed with the platform that’s carrying it. First, the O3 camera is hard mounted to the frame so any vibration translates directly into awful jello on the DVR footage - particularly in bright sunlight. I think I got 3 or 4 flights out of it before even tightening everything up before each flight (and replacing props) wasn’t making a difference. Most of the footage from a recent trip to Wales was just unwatchable. Gutted.

I also found out that the 24khz used by the DJI IMU can clash with the 24khz PWM being used by the ESCs (but it wasn’t that in this case)

There are many designs for TPU cases out there (which wouldn’t fit on the Darkstar due to pretty meh design choices) - and many peeps don’t have 3D printers anyway.

I saw the instructions for ‘proto putty’ a while ago and wondered if it could be used to make silicon damper pads to try and isolate the vibrations. Long story short - you can, and it works superbly from tests so far. :man_dancing:

It’s damn gloopy stuff for sure - but, it works and could be useful for other applications too.

IMG_6025
IMG_60254032×3024 2.03 MB

Note: Red Leicester cheese is not a suitable alternative.

IMG_5476
IMG_54764032×3024 2.32 MB

IMG_5480.HEIC
IMG_5480.HEIC3024×4032 1.37 MB

Here’s the ‘recipe’ if anyone wants to give it a go (it’s blummin messy mind you!)

6 Likes
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@DaveJaVu are you still flying this or main the betafpv now?

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I bought the Pavo 20 without vtx and swapped out the O3 kit from the Darkstar when I had the third motor crap out on me. :man_facepalming: T’was a cursed little thing tbh, lots of small niggles and some pretty major ones too tbh. Am loving the Pavo 20 thus far. :+1:

1 Like
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Im still thinking of getting a betafpv and now that my goggles 3 will work with the 03 air unit i should be jumping on it. What radio are you using?

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I use a Radiomaster TX16S, but I use CRSF so have the micro module plugged in the back of it.

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Where did you buy proto putty from?

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The video in the OP suggests you make it yourself. :wink:

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Yup… it’s remarkably gunky to make - but does its job superbly well for this use. :grin:

It’s basically plain (translucent) silicon sealant with corn starch added until it becomes a putty, and some food colouring to brighten it up. :+1:

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Googles 3 and O3 camera / air unit will be amazing to fly, and the footage will be proper eye candy. :ok_hand:

1 Like