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Scotland Newbie Joined: 17/01/2007 Location: United KingdomPosts: 1
Posted: 06:33pm 16 Jan 2007
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I'm new to windmills. Is it possible to use the motor from a cordles drill?
Gill Senior Member Joined: 11/11/2006 Location: AustraliaPosts: 669
Posted: 12:03pm 17 Jan 2007
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Yes Scotland, you sure can. To answer your question I connected a multimeter to the two battery connector tabs in the handle of an old 7.2volt battery drill and spun it by hand. The meter indicated a peak of 2voltsDC. You could easily perform this test yourself on any potential motors i.e. those with permanant magnets. Stepper motors are more suitable as they do not use a comutator and brushes. Typically they have 5 or 6 wires and generate 3 phase AC. It is however a little more complex to test these. Possibley the greatest difficulty you would have in using a drill motor as a wind generator is the speed of the propellor needed to generate uesful power. For this application I think a 2 bladed prop is best as they run at higher speeds. The fun thing with these small units is that you can experiment with diferent ideas so easily. I hope you give it a go. was working fine... til the smoke got out.
Cheers Gill _Cairns, FNQ
Pt w/field Matt Senior Member Joined: 24/02/2006 Location: AustraliaPosts: 105
Posted: 12:23pm 17 Jan 2007
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hi scotland get a 18volt 2 speed drill and use the gearbox to help spin the motor fast and hold the blade shaft with the chuck and if it doesnt work you have a c/less drill that can be solar/wind chargedmatt down south