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Forum Index : Windmills : AXFX Advice

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AMACK

Senior Member

Joined: 31/05/2009
Location: Australia
Posts: 184
Posted: 12:17am 09 Feb 2011
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I am looking for a little advice on magnet spacing and mag size for a mill?

The 2 metal disks i have are 8 mm thick.




I have decided to give one a go.

AMACK
*Note to self

1. Make it thick

2.Make it heavy.

3.Make it stronger than it should be.

4. Don't rush the first job as the second job will cost more and take mor
 
niall1

Senior Member

Joined: 20/11/2008
Location: Ireland
Posts: 331
Posted: 01:13am 09 Feb 2011
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Hi Amack

i looked up Hughs specs on his machines ...its cheating a bit ...

at 8 mm and 350 D thats pretty close to his to his 2.4M machine ...the 3M machine uses 10 mm disks at 350 D

i,m really hoping others with experience can come in here and discuss the magnet choice and coil (turns) layout .... maybe 12/9....

nows the time to figure it out ... ...... Edited by niall1 2011-02-10
niall
 
AMACK

Senior Member

Joined: 31/05/2009
Location: Australia
Posts: 184
Posted: 02:56am 09 Feb 2011
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Thanks Niall, I think you are close to what I had in my mind to do. I have had a look at Hughs book and I do plan on using 12/9. I would like it set for 24 volt as that is the system voltage I run..

I have used a Holden hub and a 50X50 mm stub and intend to make the frame and stator after a bit more home work has been done. I need to talk to Downwind about coils as he has had a lot of back ground info on them.

AMACK
*Note to self

1. Make it thick

2.Make it heavy.

3.Make it stronger than it should be.

4. Don't rush the first job as the second job will cost more and take mor
 
Gizmo

Admin Group

Joined: 05/06/2004
Location: Australia
Posts: 5078
Posted: 12:34pm 09 Feb 2011
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12/9 is the best all rounder. If you stick to Hugh's plans for the magnet spacing and coil layout, you cant go wrong, he's built a lot of machines and knows his stuff.

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