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HomeAircraftHelicopterAerial Photography and Video › Where to buy silicone gel anti-vibration gel block help !
03-08-2013 04:13 PM  5 years agoPost 21
Stephen Born

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USA

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JoeB1
Thanks for the informative reply
Your welcome JoeB1. Just let me know if you need them.

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03-08-2013 08:05 PM  5 years agoPost 22
JoeB1

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Ireland, Wicklow

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That is a truly very nice offer and thank you but my delivery should be here by then. I like your idea of reducing the contact area and I will keep that in mind during my "experiments"!

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03-08-2013 08:18 PM  5 years agoPost 23
Stephen Born

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USA

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I found the less surface area of the Sorbothane, the less vibration.

To much of a good thing can have reverse effects.

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07-22-2013 05:02 PM  5 years agoPost 24
jasmil72

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Kansas City, MO 64108

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Hey Everybody!
I'm new to runryder and own my own cameraship, a gaui x7 with photoshipone 3xpro, and I've had an issue with getting vibration on my sony nex5. So I see a jello effect in all of my video. I've done damn near everything to isolate the gimbal, with more flexible main rear mounts on the gimbal and included a second camera mount plate sandwiching anti vibration balls in between, as well as some adjustable weight ballasts. I'm getting new Rotor tech 710mm blades soon, running 690's now and hoping that alleviates some of the issue as I'll be able to run a slower head speed. My question is, what head speeds would you guys suggest, both with the 690's and 710's?

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07-22-2013 08:14 PM  5 years agoPost 25
Stephen Born

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USA

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HS should be around 1350-1500.

Vibration is not just isolated to the optimal head speed. There are many factors that will induce high-frequency vibrations. You can call me or PM me for more advice.

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07-22-2013 09:03 PM  5 years agoPost 26
JoeB1

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Ireland, Wicklow

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Welcome to RR!
Im running 690 semi's at 1750 rpm. It flies great at that speed. Any lower and it gets to sloppy and starts "bobing".

The HS to run depends on lots of factors. The size of blades, the weight of the heli, the type of heli, FBL or FB and don't forget the pilots style or skill etc etc!
You mentioned all the effort you did to alleviate the problem but you mentioned nothing about getting rid of the problem in the first place i.e getting rid of the vibs in the first place.
Start by putting a vibration AP on your phone! Then go through all your heli tracing/removing vibs.

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07-23-2013 12:50 AM  5 years agoPost 27
jasmil72

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Kansas City, MO 64108

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thank you both for your responses, As far as tuning in the bird, I've worked with much more experienced pilots to get it tip top. One of which is a very skilled 3d pilot that in his opinion, my copter is tuned perfectly, he suggested the 710mm blades, the 690's i have on there were slightly ground into the asphalt once when a pilot I was working with attempted a auto take off when I had the 3gx/aps align system on there (big mistake) which I have replaced with the skookum 720 Black gps system which is great. The pilot that tryed the auto lift off, said that the 690's should still be fine and I've flown with them plenty, however, I noticed a slight ripple down one of the blades, so I'll be putting the Rotor tech aurora 710's on as soon as my battery packs get here on Thursday. Brian Morris, the 3d guy said I could run the 710's starting at around 1500 and then setting idle 1 and 2 at 1550 and 1600.

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07-23-2013 02:37 AM  5 years agoPost 28
Stephen Born

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USA

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Brian Morris, the 3d guy said I could run the 710's starting at around 1500
Correct. Additionally, your HS is dependent on the weight of your 710's.

I received your PM and am calling you now.

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07-23-2013 11:16 AM  5 years agoPost 29
JoeB1

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Ireland, Wicklow

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Did he set up your heli for flying, or did he just dial it in?
You may need to balance the tail blades, the tail hub, check the head for balance, motor hub balance, bearings etc etc. It may fly perfect, but put a camera on there and the vibs can show. Try and get rid of as much vibs as possible, then work on damping, not the other way around.
Rotor tech are good blades. However if you are getting jello it could be high frequency vibs which would rule out your head which could give a lower, shaking vib.
Get back and let us know how you get on. Others may have the same issues but if you keep it to PM's no-one will see your progress or advice you or see your results. That's what forums are for mate.
Best of luck.

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