Replies to This Discussion

Permalink Reply by Haidar Abu Bakar on September 19, 2011 at 10:34am

I have used a GoPro and I have used a compact camera on tricopter and plane. The weight of the Gopro is an avantage for it. Less weight = less vibration but some padding is still required to reduce vibration. But the jelly effect of motion on a GoPro is a turn off for me. A heavier compact camera requires a lot more padding to reduce the jitters. How does your camera mount look like?

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Permalink Reply by Chris Pitts on September 25, 2011 at 7:04am

For reference, it's not so much about the weight its self, but how the weight and distribution plays with the natural vibrations that already exist within the system. Certain amounts of weight added at the right place can dampen vibrations, and the same weight placed in a different spot can actually make the vibrations worse. One thing engineers on these systems have to deal with is how the systems resonate and vibrate while they operate.

 

It's hard (but not impossible) to actually model where these vibrations occur, but you can do it using advanced CAD software like SolidWorks. If there are any mechanical engineering students working this project, engineering a camera mount that would dampen the vibrations from the platform on the camera would be a very worthy senior design project.

 

If not, you can do some guessing and testing on your own. Try mounting the camera in different places, or perhaps try adding rubber or polyurethane grommets in different places along the body of the aircraft. If you get them in the right places, you can eliminate a lot of vibrations.

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Permalink Reply by Helldesk on September 19, 2011 at 11:20am

Good balancing of props and motors is a good starting point. All cameras with a rolling shutter will suffer from the "jell-o-vision" if they are mounted on a vibrating platform. GoPro is no exception. Some users simply have less of an issue with vibration, having avoided or reduced them to a tolerable level.

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Permalink Reply by Don Cramer on September 20, 2011 at 10:02pm

I second that. Balancing the rotating parts is one of the most important things to do on any craft especially a FPV platform. Spend extra time when balancing, it will pay off in the end.

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Permalink Reply by Azam Shahani on September 20, 2011 at 11:14pm

I use a bungee mount for my gopro on my tricopter... I get almost zero vibration... the gopro mount is attached to the landing gear of my tri with bungee cord... if you're interested I could send you pictures to make it clear to you how I mount it..

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Permalink Reply by charlie Soppelsa on September 21, 2011 at 6:09am

Hi Azam

I found the same, I had to use either 2mm bungee or small tension springs, the latter removed all vibration.

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Permalink Reply by Azam Shahani on September 25, 2011 at 12:21am

Hi,

 Nice. Tension springs sound neat!

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Permalink Reply by Mike Walker on February 25, 2012 at 10:19pm

Charlie,

How do you have the springs mounted? 4, one for each corner? -- Do you use them in tandem with the bungee? Do you have some images of the setup?

I have been thinking of using hose as vibration reduction but the springs and bungee sound like a great idea.

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Permalink Reply by m00se on February 28, 2012 at 5:02am

hi

do you have any photos ? i have a cuad that has vibration that i need to remove,

any pics would be greatly appreciated,

thanks, 

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