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rotorhed

Newbie

Joined: 29/01/2007
Location: Australia
Posts: 36

Posted: 03:44am 08 Feb 2007

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Hey guys

Just been tinkering and made a small model of a screw type Vawt. Thought you would be interested in having a look. Photo taken with phone so sh*t quality it is.

I'll also post a 1 minute vid I took its in zip format and i think you need quick time to play it.

Cheers
Christian

Marge the Winds are here
Ah McCaine.............

rotorhed

Newbie

Joined: 29/01/2007
Location: Australia
Posts: 36

Posted: 03:58am 08 Feb 2007

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Hey

Here is the vid as promised. I was very impressed by this little unit considering the light breeze needed to get it started. I know its not doing any work so it should spin easy anyway. I looks pretty sweet spinning in the breeze almost hypnotic.

Does anyone else suffer from wind induced hypnosis

Its about 500mm high and 300mm wide

Cheers
Christian

2007-02-08_134659_Screw_Vawt_cut.zip

Marge the Winds are here
Ah McCaine.............

dwyer
Guru

Joined: 19/09/2005
Location: Australia
Posts: 574

Posted: 04:39am 08 Feb 2007

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Hi Rotorhed
That is very good screw vawat you made as l am very impressed with your design well done

Dwyer the bushman

Hugh

Regular Member

Joined: 26/11/2006
Location: Canada
Posts: 41

Posted: 01:36am 09 Feb 2007

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I'm pretty sure it's not hypnotic
I'm pretty sure it's not
I'm pretty sure it's
'm pretty sure
I'm pretty
I'm zzzzzzzzzzzzzzzzzzzzzzzz

thnxs allways

rotorhed

Newbie

Joined: 29/01/2007
Location: Australia
Posts: 36

Posted: 03:02am 09 Feb 2007

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LOL

Marge the Winds are here
Ah McCaine.............

rotorhed

Newbie

Joined: 29/01/2007
Location: Australia
Posts: 36

Posted: 04:32am 10 Feb 2007

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Hi all

Just thought I'd let you know that i'm going to build a larger version of this vawt but with a slight modification to the design of the S blade. May be 1.5 m x 0.5m

Does anyone know how to draw a parabola in Solid works 2005 I used the help file but as usual they don't help.

I think if I change it to two opposing parabola's it will become more efficient

Any help would be greatly appreciated.

Cheers
Christian

Marge the Winds are here
Ah McCaine.............

Gizmo

Admin Group

Joined: 05/06/2004
Location: Australia
Posts: 5116

Posted: 01:02pm 10 Feb 2007

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Hey rotorhed, have you tried the sandia laps S type VAWT. I made a small one and it runs very well. The plans are on the left side of this page
http://www.thebackshed.com/windmill/photos4.asp
It would be interresting to see how it runs with a twist in it like you windmill.

Glenn

The best time to plant a tree was twenty years ago, the second best time is right now.
JAQ

rotorhed

Newbie

Joined: 29/01/2007
Location: Australia
Posts: 36

Posted: 02:14am 11 Feb 2007

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Hi all

Glenn no I haven't tried sadia type yet but I do agree that it would be quite interesting to see how it runs with a twist in it maybe a twist of 90 degrees instead of 180 like mine, might make it a little less complex to build.

I do like the idea of it having a vane for the air to travel through and maybe accelerate the opposing side.

Cheers
Christian

Marge the Winds are here
Ah McCaine.............

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