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Forum Index : Windmills : New article about those Chinese blades.

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Gizmo

Admin Group

Joined: 05/06/2004
Location: Australia
Posts: 5116
Posted: 01:07am 11 Feb 2007
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Hi All.

I've started on a page about my modifiactions of the Chinese blades. Its not completed yet, but worth a look anyway. I've finished my blades, just waiting for the paint to dry ( I should have read the can before I sprayed the blades, touch dry in 8 hours ).

So I wont get the blades mounted and tested for a few days yet.

The page address is http://www.thebackshed.com/windmill/articles/chineseblades.a sp

There are no links from the main site yet, not until I've finished the page and have some test results.

Glenn
The best time to plant a tree was twenty years ago, the second best time is right now.
JAQ
 
brucedownunder2
Guru

Joined: 14/09/2005
Location: Australia
Posts: 1548
Posted: 03:51pm 11 Feb 2007
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Hello Glenn.
They look something like the "art" blades I got from a chap in America. they were f/g and I did a bit of finishing on them .
I found that on the old F&P they were a bit narrow ,I think , but maybe I'll hoist them up again ,now that I have the non-cogging rotor ,maybe ,,
I think they were about 3 foot 6 inches by around 4 inches at the root and just 2 1/2 inches at the tip--
I mounted the adjustable blade holders onto a 12 inch Al disc to give a dia of a bit more than 7 feet,
Oh, and these were a bit noisy also.
Be watching to see how your set performs

Bruce




Bushboy
 
Trev

Guru

Joined: 15/07/2006
Location: Australia
Posts: 676
Posted: 10:32am 13 Feb 2007
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Excellent work.
The cut off disc should be for 'stone'. Not steel. Or better still, a diamond saw is the best.
Glass is derived from silica sand, it will make any teeth type saw blunt.
Trev @ drivebynature.com
 
Gizmo

Admin Group

Joined: 05/06/2004
Location: Australia
Posts: 5116
Posted: 10:49am 13 Feb 2007
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I was surprised how easy it was for the angle grinder to cut throught the fibreglass, like a hot knife through butter and very easy to follow the pencil line. I could see a orange glow inside the cut, but no flame or burn marks, lots of foul smelling smoke though.

I've given the blades a coat of paint, then sanded with wet and dry paper with water, and repainted tonight. This got rid of all the little fibreglass hairs.

Glenn
The best time to plant a tree was twenty years ago, the second best time is right now.
JAQ
 
Pt w/field Matt

Senior Member

Joined: 24/02/2006
Location: Australia
Posts: 105
Posted: 01:58pm 26 Mar 2007
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hi gizmo what diametter and thichnessis the hub for the mod chinese blades ? and would 5mm plate do? thanks matt
matt down south
 
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