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MS Composit › duzi 120deg mounts.worth getting?
12-09-2004 09:46 AM  13 years agoPost 1
600rr

rrApprentice

london.united kingdom

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before i get to building the h2 i saw these mounts,they look very good.
must be better than tape or glue.
what is the opinion on them are they good quality and worth getting or is it just " for show factor"

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12-09-2004 10:40 AM  13 years agoPost 2
Al Magaloff

rrMaster

12,199 Posts- Enough Time Wasted. See Ya!

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600, I'm doing the same with my initial build. A much better servo placement/attachment than the two sided tape. Guys that have cut the ears off their servos initially, will need to re-case the three servos. I like the fin mounts also. Gets you away from the gluing thing. My buddy Juan Rodriguez (RR member) just did his, convincing me it's the way to go. PM Juan for details. The Duzi stuff looks to be light weight, and very high quality.

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12-09-2004 11:25 AM  13 years agoPost 3
cyclic

rrNovice

Berkshire UK

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Guys,

A nice mod I agree but you need to consider the Gyro mount position at the same time.

I used the Duzi mounts and put the gy401 up front only to find I got interference from the twister motor. I then had to re-wire the layout and move the gyro to the rear...... then you find that the space for the gyro has been taken up.

I then made a plate to mount the gyro on and moved the LiPo up front to get a good C of G - Note though that I'm yet to fly it, that's hopefully this weekend.
Take a look at my gallery for what I've done.

Another tip is not to drill the chassis at the dimensions in the Duzi instructions. I used the Duzi servo to swash arms and Futaba 3106 servos so the offsets are different. I would dry fit it all then once you are happy with the position of the mount on the chassis, spot them through to mark the position then drill and fix.

Also I have a mixture of the cyclic servos mounted in front/behind the mount with small carbon plates to ensure a good fix - I did not use the gromets etc. This took a while to do as I was looking to get a very direct 90° line onto the swash plate.

Good luck

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12-09-2004 07:49 PM  13 years agoPost 4
Lowell Foo

rrApprentice

Vancouver, BC, Canada

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It looks like the Duzi servo mounts make the servo links off axis to the main shaft. How important is it to have the links straight up and down?

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12-09-2004 08:39 PM  13 years agoPost 5
cyclic

rrNovice

Berkshire UK

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Viewed from the front or rear yes they do.

Viewed from the side I positioned the mounts so this was minimal.

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12-10-2004 07:38 AM  13 years agoPost 6
mikeflyz

rrApprentice

Westlake Village, CA

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what is the opinion on them are they good quality and worth getting or is it just " for show factor"
The mounts would probably make mounting easier, but double-sided foam tape from Radio Shack is quite strong and is on this Hornet.

Best of luck

Mike
MA Fury Extreme, JetCopter SX

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12-10-2004 10:08 AM  13 years agoPost 7
Al Magaloff

rrMaster

12,199 Posts- Enough Time Wasted. See Ya!

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I agree Mike! I have double sided foam tape holding the 250 pound , crystal chandallier to the ceiling above my bed!

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12-10-2004 12:03 PM  13 years agoPost 8
JuanRodriguez

rrProfessor

The Villages, Florida

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RStacy and I both did the Duzi mounts and believe they are well worth the effort. I had one of my servos start to come loose from the double sided tape which I luckily caught on the ground.

With the Duzi mounts, the servos are very solidly held whereas with the servo tape there is a certain amount of flex. It's probably minute and not noticable in flight but it's there nevertheless....

I also agree that you should take a little extra time to mount the servos and "dry fit" the mounts prior to mounting rather than relying on the dimensions given in the instructions.....

As far as the gyro mounting, there was a thread started by cnsheets that is the cat's meow.... check it here.....

http://www.runryder.com/helicopter/t110174p1/

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12-10-2004 02:56 PM  13 years agoPost 9
cyclic

rrNovice

Berkshire UK

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Having now moved my GY401 more times than I care to mention, I'm now out of the nice Futaba double sided foam.

Does anyone have a view with regards to vibration/low gain settings if some thin 'holds like hell' double sided servo tape is uesd?

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12-10-2004 08:17 PM  13 years agoPost 10
AndrewShimabuku

rrNovice

Honolulu, Hawaii

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12-11-2004 02:21 AM  13 years agoPost 11
Fit

rrApprentice

Temasek

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I have found that they gyro works best when its solidly mounted onto the frame. I glued a piece of balsa behind the main mast to provide a large footprint for the servo tape to hold on to.

I dunked the soft gyro tape. It allows the gyro to wiggle left and right and causes wags. I moved on to 3M heavy duty tape, its black stuff with a green backing and the tail holds much better now. THe gyro is solid and doesn't wiggle much at all.

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