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kevindion
Regular Member

Joined: 28/07/2010
Location: China
Posts: 59

Posted: 03:16pm 21 Sep 2010

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i made my first coil this morning by hands,and it looks horrible.

so i made a coil winder,it's not finish yet,i hope it works well.

my first turbine assembled by 8 magnets 6 coils,i expect it have potential to produce 200w at 4m/s.

diam of copper wire, 1.08mm , 130 turs per coils.

is there anything wrong with this design?

Downwind

Guru

Joined: 09/09/2009
Location: Australia
Posts: 2333

Posted: 05:36pm 21 Sep 2010

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kevindion

Good to see you ditched the induction motor idea and am tring to produce a decent mill.

You should at least end up with something that will produce some power.

You should not wind too many coils till you have your magnets and plates setup so you can test 1 coil to see if the number of turns is correct for your setup.

You asked elsewhere about magnet size, The bigger the magnets and the more powerfull the magnets are, the better the output from the mill.

The thing that restricts most people with magnets is the cost, otherwise we would use huge powerfull magnets and lots of them and make very good power with big windmills.

Pete.

Sometimes it just works

imsmooth

Senior Member

Joined: 07/02/2008
Location: United States
Posts: 214

Posted: 09:45pm 21 Sep 2010

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Coil winder, and not very expensive.

coil winder

kevindion
Regular Member

Joined: 28/07/2010
Location: China
Posts: 59

Posted: 02:20am 22 Sep 2010

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imsmooth said Coil winder, and not very expensive.

coil winder

i see some chinese word on that winder,r u a chinese?

make my own power is not my gold,get fun and experience from making something is my gold.

MacGyver

Guru

Joined: 12/05/2009
Location: United States
Posts: 1329

Posted: 05:18am 22 Sep 2010

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imsmooth

Hokey smoke! That "link" is more like an entire Web site! Great job. I clicked through far enough hear the water; nice touch.

. . . . . Mac

Nothing difficult is ever easy!
Perhaps better stated in the words of Morgan Freeman,
"Where there is no struggle, there is no progress!"
Copeville, Texas

kevindion
Regular Member

Joined: 28/07/2010
Location: China
Posts: 59

Posted: 11:51am 22 Sep 2010

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kevindion
Regular Member

Joined: 28/07/2010
Location: China
Posts: 59

Posted: 11:54am 22 Sep 2010

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i think the coil just too thick.

imsmooth

Senior Member

Joined: 07/02/2008
Location: United States
Posts: 214

Posted: 01:27am 23 Sep 2010

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Yes, it is too thick. With my winder I have two plexiglass discs on each side to contain the coil. When I am done I use some superglue to keep it tight. I add the superglue and wedge the coil between two metal plates and some clamps. This keeps each coil fully compressed.

Downwind

Guru

Joined: 09/09/2009
Location: Australia
Posts: 2333

Posted: 02:36am 23 Sep 2010

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Hi you need to make a frame to wind the coil onto that has 2 plates 1 each side so it will keep the coil shape.
The coil will need to be 2/3 the width of you magnets.

So 4mm magnets will = 2x4 = 8 /3 = 2.667x2= 5.33mm thick

So for your coils they will need to be 5-6mm thick.

Pete.

Sometimes it just works

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