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adam666
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Joined: 01/02/2006
Location: New Zealand
Posts: 14

Posted: 03:51am 05 Mar 2006

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Hi everyone,

Im making a hub at the moment to fit 3 x ldpe blades approx 500mm long.

Having cut the first 10mm thick plate into a circle (for welding to shaft), Im wondering whether there would be any probs if I DONT make the other 10mm plate round and just left it square...for obvious reasons :)

the blade mounts are 4mm, which will have the 10mm plate as shown welded to it.

and will bolt to the circular 10mm plate.

any problems / suggestions?

thanks
Adam

Edited by adam666 2006-03-06

"to capitalize on windy wgtn" -excuse the pun :p

Gizmo

Admin Group

Joined: 05/06/2004
Location: Australia
Posts: 5036

Posted: 04:04am 05 Mar 2006

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Hi Adam.

Nah there is no reason you couldn't leave it square. It would have no effect on balance, and little effect on wind resistance. And it would save you a lot of work cutting another circle. Its only cosmetic, so go for it.

Glenn

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

adam666
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Joined: 01/02/2006
Location: New Zealand
Posts: 14

Posted: 09:03am 05 Mar 2006

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GREAT!!

I had convinced myself it would be fine as it was still symmetrical, but just thought Id check :)

cheers glenn

should be flying pretty soon :)

cheers
Adam

"to capitalize on windy wgtn" -excuse the pun :p

adam666
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Joined: 01/02/2006
Location: New Zealand
Posts: 14

Posted: 09:32am 05 Mar 2006

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While Im here :P

can anyone please give me some advice with regard to constructing / mounting using the f+p bearing holder?

ive got wat i think is a decent plan, using angle iron frame and securing to holder with screws but.....

ecoinn sell these holders so Im hoping someone might have a pre-engineered design I could copy :D

ideas invited !!

thanks
Adam

and it has a excellent rubber seal for the front too! bonus :)

Thanks
Adam

"to capitalize on windy wgtn" -excuse the pun :p

Gizmo

Admin Group

Joined: 05/06/2004
Location: Australia
Posts: 5036

Posted: 11:54am 05 Mar 2006

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Hi Adam.

Have you seen the design I describe on the web site http://localhost/Windmill/fp2a.asp. Its a bit more involved, but you can make it in a afternoon and its proving to be reliable.

Another option would be a short length of 100mm box section. Drill a few holes in the side of the steel box and screw in self tapping screws to secure the plastic bearing holder.

Glenn

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

adam666
Newbie

Joined: 01/02/2006
Location: New Zealand
Posts: 14

Posted: 05:19pm 05 Mar 2006

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Hmm, hadnt though about getting some 100mm box....

but yes, screwing to the centre section seems the way.

yes, I have been using those instructions for everything else! :)
they're excellent thanks!

figured Id have a go using the std holder instead (dont have any 65mm box :p )

and tryin to re-use as many of the washing machine parts as possible :)

cheers
Adam

"to capitalize on windy wgtn" -excuse the pun :p

adam666
Newbie

Joined: 01/02/2006
Location: New Zealand
Posts: 14

Posted: 04:45am 11 Mar 2006

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ended up using 4 bits of 40mm angle (2 bits shaved to 35mm)

pics:
http://www.oupower.com/index.php?dir=_Other_Peoples_Projects /adam666/WindPower/Fisher%20and%20paykel%20turbines

cheers
Adam
Edited by adam666 2006-03-12

"to capitalize on windy wgtn" -excuse the pun :p

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