fangin.com RC, photos & tech

21Jun/120

How to mount a GoPro to a DJI Naza F450

I'm not saying it's the best way, it's just how I do it and it seems to work well. Velcro on the bottom of the GoPro, velcro on the part of the F450 frame that sticks out the front then wrap a length of velcro around the entire camera. The "shutter" button can still be easily operated through the velcro. 

Simple, light and works. I used to use the protective case but what's the worst that could happen. If I write it off, I'd have to replace it with a new version 2 GoPro. Damn. 🙂

 

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20Apr/110

Tricopter vibration mount testing

 

This clip shows sample footage from four different camera mounts on my tricopter. The aim was to counter the effect of vibration on the quality of the video and remove the "jello" effect as much as possible. 

The best result achieved so far was probably the simplest and cheapest: a HD keychain (#11) velcroed directly to the frame. 

The biggest improvement was can probably be attributed to using an accurate prop balancer as you might notice the noise in the last two videos is significantly reduced.

The next test will be with a GoPro.

Tricopter vibration mount testing

20Mar/111

Tricopter: Anti Vibration mount

Mounting the cameras directly to the ply base didn't yield great results in image quality due to all the vibration. To try and reduce it, I did a rough balance of the props using music wire as a 'balance beam'. I think this improved it a bit until a proper balance can be done.

The first mount was made with fuel tubing screwed onto nylon bolts. I probably should have made the tube length a bit shorter because it was too flexible for the weight of the camera. I'm not sure it made a big difference to countering vibrations and mounting the camera on the foam to get the right angle was difficult. The first bounce on landing and the camera would shift.

Version two uses rubber mounts taken from inside an old PC CD-ROM drive. A 1/4" nylon bolt holds the camera firmly in place while cable ties with the head cut off hold it all in place. I think this mount reduced the vibration getting to the camera but still not entirely. Until I properly balance the props and motors I can't tell if it's good enough. 

I'm still impressed with the video quality I get out of the keychain cameras considering their small size and weight compared to that of the IXUS 100IS. Next test I reckon I'll velcro the keychain cam to the version two mount and see what I get.

Mount 1

Anti vibration mount

 

 

Mount 2

Anti vibration mount

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