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phoenix or clearview?


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Huh
Fully Charged
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Joined: 25 May 2014
Posts: 3
Location: Phoenix, Az

PostPosted: Thu May 29, 2014 8:44 am
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Thanks Tombo, Having both sims, I can use Clearview for heli's and Phoenix for the quad's. Using both keeps me a little sharper as they respond a little deferent.
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tombo242
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Joined: 04 Nov 2008
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Location: Santo Estêvão, East Algarve, Portugal. Now 82, but still feels 22.

PostPosted: Thu May 29, 2014 4:51 pm
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Well Huh,

As I can't get to the Phoenix quad model data I cannot say whether they are normal helis in disguise or not. However, from the reports that I have read they are much simpler to control than the real thing. Almost as if they are using a coax as a base. Just my opinion - I could be wrong - my three quads do require a little skill at times but are certainly much easier to fly than a single rotor heli.

Here's a link to a video I took in my local village from my home-built 450 quad. (Not good enough for Youtube.) Uses the HK KK2 controller updated to V1.6 and 10" props.

Tom.
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Huh
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Joined: 25 May 2014
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Location: Phoenix, Az

PostPosted: Fri May 30, 2014 12:08 am
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Thanks for the video Tom, is the rippling effect caused by electrical interference or vibration?

Wow!, 10" props!, need a safe zone with those. I started back in the late 80's with a gas "60" class Cobra. 4ft long with 3ft dia rotor blades.

Once watched a pilot hover nose in and walk up and kiss the nose, crazy!

Couldn't afford to keep rebuilding after several crashes($300-500 each time) so it sets in my den on a shelf gathering dust.
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tombo242
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Joined: 04 Nov 2008
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Location: Santo Estêvão, East Algarve, Portugal. Now 82, but still feels 22.

PostPosted: Fri May 30, 2014 5:36 pm
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Hi Huh,

Ripple is caused by vibration (I think). It reduced a lot when I balanced the props with a magnetic bearing balancer - flew better too. Then I used some soft foam on the camera mount and a few nuts hot-glued on as ballast on the camera clamp. (Home-made mount shaped from the lid of a sardine tin!)

I've got the software recommended by Burgess (his post is here) for reducing vibration, works well but I have yet to use it on the quad. Looks as if I will have to disconnect each motor in turn and balance one leg at a time. I intent to balance the (prop-less) motors first as I think that a lot of the vibration is coming from them. That does involve a ton of guess work as you have no way (to my knowledge) of finding the lighter side of a spinning motor other than stopping it, sticking on some tape and checking the result against the previous run. Have to set aside a day and fully charged batteries for 4 motors!


Tom.
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Burgess
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Joined: 27 Mar 2012
Posts: 1092
Location: Wales

PostPosted: Sat May 31, 2014 7:55 am
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Here are two methods for balancing brushless motor bells.

The first one by using a zip-tie to find where to add weight on the bell.
http://www.youtube.com/watch?v=_yLRGF5_4XU

The second method by using an RC boat prop balancer.
http://vimeo.com/37033730

Also close inspection of the radial bearings, how smooth the bearings run, and how well they fit in their housings, apply a spot of Align R48 (green) bearing-fit if needs be. They should be square in the housings, so that a shaft of the right diameter zero clearance will slide smoothly through without any binding.


Burgess
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tombo242
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Joined: 04 Nov 2008
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Location: Santo Estêvão, East Algarve, Portugal. Now 82, but still feels 22.

PostPosted: Sat May 31, 2014 5:42 pm
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Couple of useful videos there Burgess!

Thanks for posting them.

Tom
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