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Aerial Photography and Video > First videos with CF-30 - Vibration Tests
 
 
nooobsElite Veteran - Location: web - My Posts This: Topic  Forum
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11-05-2008 10:55 AM
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KarbonBird
Key Veteran
Location: Australia

My Posts This: Topic  Forum		Pretty smooth!
11-05-2008 11:27 AM
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GauchoVolador
Veteran
Location: Buenos Aires, Argentina

My Posts This: Topic  Forum		You finally got it Rosauro!
I bet it will be even smoother when you install a heavier camera.
Congratulations!!

Noobs alias the Vampire of the AP/AV community!

Un Gran Saludo a Todos!
11-05-2008 11:47 AM
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Hogster
Key Veteran
Location: Surrey, UK

My Posts This: Topic  Forum		Looking good nooobs


David
11-05-2008 12:21 PM
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rerazor
Elite Veteran
Location: Mich.

My Posts This: Topic  Forum		Looks smooth to me.
I wouldn't expect anything but a middle of the night flight.

Is that mount gyro stabilized? If so how many axis?

Robert
N.A. DJI Distributor
11-05-2008 12:39 PM
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tabbytabb
Elite Veteran
Location: seattle

My Posts This: Topic  Forum		Looks good man!

Congrats, just don't look into the lights!



Tabb
11-05-2008 04:57 PM
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cranester
Key Veteran
Location: Bogota, Colombia

My Posts This: Topic  Forum		Super smooth video, congrats Noobs.

Beautiful mount there.

Juan Crane
11-05-2008 05:08 PM
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rroback
Elite Veteran
Location: Irvine (UCI), Ca

My Posts This: Topic  Forum		when I had a cf-30, I had a gyro on roll ( since it's not a modified servo), which worked pretty well.


very smooth!

Rhett..... I can't fly, but the Profi sure can.
11-05-2008 06:38 PM
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nooobsElite Veteran - Location: web - My Posts This: Topic  Forum
...
11-05-2008 06:43 PM
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daytonabeach
Elite Veteran
Location: Oslo, Norway

My Posts This: Topic  Forum		Congrats Ros!

Looks pretty vibe free to me...!

How does it feel?

Never argue with an idiot, he'll drag you down to his level and beat you with experience...
11-05-2008 08:31 PM
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rroback
Elite Veteran
Location: Irvine (UCI), Ca

My Posts This: Topic  Forum		woh... there's that part... on my mount, I didn't have the curved metal between the front and back plates, I just had spacers.

Rhett..... I can't fly, but the Profi sure can.
11-05-2008 08:45 PM
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nooobs
Elite Veteran
Location: web

My Posts This: Topic  Forum		Thanks Chris. Ya I feel vibe free right now... LOL I'm definitely liking the flybar. Glad I went back to it. A lot smoother.

Victor thanks for the reminder on the flybar weights. I actually got rid of the MJ paddles and weights I had and installed the Raptor paddles. They're heavier on its own compared to the combined weight of the MJ paddles and flybar-weights I had on. Waitin on newer flybar weights to arrive. I was using the incorrect size but worked for the time being.

Rhett the CF-30 came like this. The spacers are still there. Initially I installed the wires on the outside. Now they're underneath the plates. Cleaner.
11-05-2008 09:46 PM
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wjw
Veteran
Location: Cape Coral, Florida usa

My Posts This: Topic  Forum		Looks good, I have been thinking about trying those Eni dine rope dampeners.
Looks like they are worth a try.
11-05-2008 09:56 PM
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eyeinsky
Veteran
Location: Fall River, Nova Scotia, Canada

My Posts This: Topic  Forum		nooobs

You should go fly-bar-less. I was surprised how much noise and vibration came from the flybar. Some thing you don't know till it is removed. My next step is to Dynamic balance the main and tail rotors. I will be using full scale balancing equipment. My goal is to take video with out isolator. Here is a little vid I put together demoing the latest machine. Currently I still have some small vibrations.

By the way, very nice looking machine

Keep It up.

http://www.vimeo.com/2051253

Hard job competing with gravity.
11-05-2008 10:20 PM
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pery
Heliman
Location: Sweden

My Posts This: Topic  Forum		This IS smooth!
And it looks beautiful

Wonder what it would look like if it was hardmounted on the airframe? Has anybody tested to change the RPM when watching the AV-out? Can it be used as a guide for minimizing the vibrations?


I tested my AirFoil Mini pro1 with a Canon Ixus 860IS (that´s the name in Europe). Movieformat - 640 x 480 px 30 f/sec, IS mode off (stabilizing). No good result Our Maxi Joker v1 is just vibrating too much and my flying is not nice at all - yet. It takes a lot of airtime and simtime to get there. Will do more balance work and retry...
11-05-2008 10:30 PM
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daytonabeach
Elite Veteran
Location: Oslo, Norway

My Posts This: Topic  Forum
Quote 
Has anybody tested to change the RPM when watching the AV-out? Can it be used as a guide for minimizing the vibrations?

Pery, im on it now, but havent had time to test it yet, adjusting thr from 1200 to 1450 with one of the tx sliders, and record the video with OSD on it to see what rpm gives less vibes

Never argue with an idiot, he'll drag you down to his level and beat you with experience...
11-05-2008 11:04 PM
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eyeinsky
Veteran
Location: Fall River, Nova Scotia, Canada

My Posts This: Topic  Forum		pery

RPM makes a difference there are harmonic that will aggravates vibration issues as well I have seen vibration from thing like pool noodles. I attribute this to rotor wash contacting these items as it rotates above directing air pulse down ward.

Hard job competing with gravity.
11-05-2008 11:07 PM
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nooobs
Elite Veteran
Location: web

My Posts This: Topic  Forum		...
11-05-2008 11:33 PM
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eyeinskyVeteran - Location: Fall River, Nova Scotia, Canada - My Posts This: Topic  Forum
nooobs

You may be correct on the blade size; all my machines are still well below the 700mm size. Noise I ref to is not on my AP machine but on the ever day machine. The one I play with. I call it the test bed. When I was torque-ing it around with the fly bar there is a normal chopping sound that I assumed was the blades. Flybarless system seem to quiet the source of that sound.

On one of my high viability landing gear I found that the noodle had picked up some vibration form the down wash. Some thing an under slug system would not be subjected to. If removed the noodles the vibration went away.

I was looking at the landing gear you had on your machine. Are happy with the operation? The only reason I ask is I have had good luck with the box frame set up to heighten my machines. It also becomes a good battery/electronics storage place and the stock landing gear bolt on. I could give you hand if required.



Hard job competing with gravity.
11-06-2008 02:14 AM
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nooobs
Elite Veteran
Location: web

My Posts This: Topic  Forum		...
11-06-2008 02:37 AM
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