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Aerial Photography and Video > Who needs vibration/iso mounts?
 
 
chris24g
Senior Heliman
Location: Hayward, CA

I found a local supplier who can get these hard to find vibe/iso mounts. Only problem is that any orders less than 16 will have to wait indefinitely on a stocking list until enough units can be purchased. They will be $30/ea, or $120 for a set of 4.

The size I am ordering is spec'd for either 8.4 (2.1 x 4) or 10.4 (2.6 x 4) lbs total supported weight, which is just about right for a typical AP setup. I can probably get bigger (16 lbs to 26), but those will likely cost more. I didn't get pricing on those.



I'm in for 4, so I need 3 others willing to drop the cash. I have seen larger versions of these exact mounts on the now-defunct coptervision heli (actually they got bought by a military contractor).



I would like to put the order in within the next two days, if possible.
08-05-2008 05:53 AM
 
 
rerazor
Elite Veteran
Location: Mich.

http://www.mcmaster.com/

Search 'wire rope mounts'
08-05-2008 01:44 PM
 
 
tabbytabb
Elite Veteran
Location: seattle

I have ordered small orders of the enidine mounts before.

If your local supplier is giving you a hard time I can give you my local suppliers contact info and they will order 4 for you no problem.
08-05-2008 03:48 PM
HOMEPAGE  
 
 
daytonabeach
Key Veteran
Location: Oslo, Norway

Ive also ordered these before, but i havent tested them yet.

Remember these are made for absorbing vibrations in a compression matter, which means, if your heli is on the ground and mounted between the heli frame and the mount, then its resting, but as soon as you lift of, they will hang instead, and then i think they no longer are as effective as they should/could be, if so, i would go for a thicker wire so it doesnt loose the shape of the construction...

Never argue with an idiot, he'll drag you down to his level and beat you with experience...
08-05-2008 04:13 PM
HOMEPAGE  
 
 
chris24g
Senior Heliman
Location: Hayward, CA

Thanks, guys, good info. Looks like mcmaster is going to cost about $30 more, but at least I don't have to order 16 of them. Might be a different mfr, too. Tabb, is the pricing about the same?

Oh and here's a little eyecandy I found digging in my photo archives. You can see they use the mounts in suspension, but they are not directly bearing the load.

08-05-2008 04:56 PM
 
 
rerazor
Elite Veteran
Location: Mich.

Yep, should be used in compression. I think Tabb still had good results when using them on his CF mount in the "resting" orientation.
08-05-2008 05:05 PM
 
 
iflybyu77
Key Veteran
Location: Fort Wayne, IN

That picture is deceiving, I think. I bet the center portion of the mount is actually what is supporting the weight, and the wire mounts ARE in fact compressed - look at the picture. They look compressed to me IMO.
08-05-2008 09:14 PM
HOMEPAGE  
 
 
rerazor
Elite Veteran
Location: Mich.

I agree, they do look to be used in the compressed orientation.
08-05-2008 09:21 PM
 
 
chris24g
Senior Heliman
Location: Hayward, CA

Maybe it's both? It may be that they are preloaded, meaning they are not fully supporting the weight, nor are they fully suspending the weight? That would give them travel in both directions, like a car suspension. Make sense?
08-05-2008 11:00 PM
 
 
nooobs
Key Veteran
Location: Toronto, Canada

Chris

The isolators are in compression. I had the same ones. The ones in the image are huge. I returned them. I ordered the wrong ones. The engineer gave me the wrong part number. These ones are most likely the correct size for their application.

I don't understand why the minimum order is 16. That's BS. Find another distributor. Go to Enidine site and contact them through their contact page. You'll get a couple of distributors after you who'll be willing to sell only 4.

$20 - $30 each is about right.
08-05-2008 11:10 PM
HOMEPAGE  
 
 
daytonabeach
Key Veteran
Location: Oslo, Norway

To me it looks like theyre mostly supporting the roll axis....

Any higher resolution available on that pic?
Could be interesting to know

Never argue with an idiot, he'll drag you down to his level and beat you with experience...
08-05-2008 11:10 PM
HOMEPAGE  
 
 
chris24g
Senior Heliman
Location: Hayward, CA

The mount they devised is shaped like an X when viewed from the top. Most likely it dampens both pitch and roll.
08-05-2008 11:53 PM
 
 
borneobear
Senior Heliman
Location: Kuala Lumpur, Malaysia.

$30 is a fantastic price. I asked the local enidine distributor in my country (Malaysia) and they wanted to sell them for US$ 235!!! Each!!
Talk about cut throats.
08-06-2008 09:46 AM
 
 
nooobs
Key Veteran
Location: Toronto, Canada

Price depends on the size. You probably got a quote for a huge isolator.
08-06-2008 10:11 AM
HOMEPAGE  
 
 
borneobear
Senior Heliman
Location: Kuala Lumpur, Malaysia.

I asked for the smallest units. Combined, the four mounts was to support approx. 1.5 kg of load.

However, its possible they miscalculated.
08-06-2008 10:27 AM
 
 
nooobs
Key Veteran
Location: Toronto, Canada

Possible or took down the part number incorrectly. There is no way they could sell those at $235 USD each. If they do report them to Enidine.
08-06-2008 11:25 AM
HOMEPAGE  
 
 
borneobear
Senior Heliman
Location: Kuala Lumpur, Malaysia.

I have a good mind to do that! I still have the copy of our e-mails, clearly stating the product code.

Anyway, back to topic - I hope the thread starter will feedback if the mounts actually work!
08-06-2008 11:32 AM
 
 
macsgrafs
Senior Heliman
Location: Barnstaple, Devon, UK

Have you guys seen the other version that looks just right for R/C Heli use. Go to mcmaster & search for this part number 5822K8
& they are only $8 each.


Ross

Seems to me that ALL heli's beat the air into submission
08-06-2008 12:15 PM
HOMEPAGE  
 
 
chris24g
Senior Heliman
Location: Hayward, CA

Quote 
I hope the thread starter will feedback if the mounts actually work!

I have seen them in so many camera applications in the TV broadcast industry that I am sure they work. It is not a magic bullet, though. It will be trial and error to some degree (hopefully not too much!) Every system will have a different resonant frequency (vibration) that must be tuned out.
08-06-2008 04:05 PM
 
 
daytonabeach
Key Veteran
Location: Oslo, Norway

I wonder where the ones used here can be bought...
Looks like a more proven thing for AP use, as its mostly resting and not in compression....

http://www.copterworks.com/3axis.html

Never argue with an idiot, he'll drag you down to his level and beat you with experience...
08-06-2008 04:11 PM
HOMEPAGE  
 
 
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