TheBackShed.com

Home	JAQForum Ver 24.01
Log In or Join
Active Topics
Local Time 06:39 12 Jul 2025	Privacy Policy
Jump to

Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me.

Forum Index : Windmills : need blade advice

Author

Message

hopi

Newbie

Joined: 16/12/2007
Location: Australia
Posts: 2

Posted: 11:29am 16 Dec 2007

Copy link to clipboard

Print this post

hi ive just started my first windmill experiment
i have a treadmill motor 180V at 6A
it has a keyed hub not a screw on
i have 900mm of 180mm pvc pipe to make the blades from
should i make them full length or shorter?
any tips would be great

wind-pirate

Senior Member

Joined: 01/02/2007
Location: Canada
Posts: 101

Posted: 02:44am 18 Dec 2007

Copy link to clipboard

Print this post

Use the full 900 mm and test the voltage. You can shorten the blades. if turns to slow. "BUT" you will lose blade power too. Have you test run this motor to see how much power it puts out?, At what rpm?. Tat is the best way to tell what size of prop will need.

THE Pirate.
stealing wind & solar energy is fun

hopi

Newbie

Joined: 16/12/2007
Location: Australia
Posts: 2

Posted: 10:38am 19 Dec 2007

Copy link to clipboard

Print this post

thanks for the reply
i did a quick test last week with the gen connected
to a 1000w vac motor it put out 2A @ 90V @ 2000rpm

Edited by hopi 2007-12-23

Print this page

To reply to this topic, you need to log in.