my first genie

[cbart1]

I have 72 1" x .5" x .5" neos and about 100 feet of 16 gauge magnet wire or i have about 20 AC to DC adapters that have about 22 gauge wire in them. I'm thinking of making a 6 pole 3 phase alt. for a test but not for sure how many winds each coil needs to make 12 volts or if it is even possible. Anyway I'm trying to make one to charge a 12v battery so I can make a generator with an old lawnmower. I have a 4" metal plate from a ceiling fan with a .5" hole in the center.



and this is my coil size diagram. There is a .25" gap for the coil to fit.

. Any help would be greatly appreciated

[cbart1]

I forgot i also have a .5" ceiling fan shaft with berings and a nut with .5" sides to make a radial. With the radial i could make a bunch of them on a pulley system and wire all together to make a multi phase alt, not for sure.

[electrondady1]

using six coils with six poles would be single phase.

[cbart1]

yes you are correct i meant a two phase not three, my bad.

[cbart1]

yes like the other person stated it would be a single phase. I meant to say 2 phase I know it is impossible to get a three phase out of this.

[ghurd]

You would be better off using 8 magnets and 6 coils, for a 3 phase generator.

I am not exactly clear on the physical plan.

It sounds like you want to make a single rotor generator.  If so, I don't expect you can get enough turns of #16 close enough to the coils to make much power at all.

While #22 would work, the resistance would be very high, making the output low and inefficient.  And I sort of doubt you can get the wire out of a wall-wart and still have it be usable.

The next problem is the 4" dia metal plate.  That's awful small.  Tend to run out of room in the center.

No doubt it can be made to make 12V with the parts listed, but no way to make enough electrical power to be worth running a lawnmower engine.

Ben's project would be a good thing to look at.

Follow the links backwards through the evolution.

http://www.fieldlines.com/story/2009/2/26/213016/068

G-

[cbart1]

Thank you, this should be all that i need never thougth about doing it that way. I also have a bunch of old computer cases around so i can use the side panels for the metal plate and do a dual rotor very easy and lots more magnets. like i said i do have 72 of them and a 100 ft of 16 gauge wire.

[ghurd]

Uh... Sorry, but Nope!

The computer cases are not thick enough to contain the magnetic flux.  That makes the magnets not work as well.  I can live with not working great.

But the BIG problem is the magnets pull.  It is incredible when you get a bunch on a pair of disks facing each other.

The thin metal will twist up like wet toilet paper.

WindStuffNow (Ed) has small metal disks pretty reasonable.  And he can custom cut them too.  Well worth it, IMHO.

SparWeb's pdf covers a lot of ground in only a few pages.  Almost required reading.  Great stuff.

http://www.sparweb.ca/Forum/AXIAL_FLUX_HowItWorks.pdf

G-

[electrondady1]

cbart1,don't be discouraged.

72 1"x.5" magnets are a great resource to have (wish i had them)

you should be able to make good power with them

if you do it right !

give your self some time to learn the lingo and what is required .

use the google search engine to look up terms your read about on the forum

[ghurd]

Good call.

A lot of power can be made with that many neo magnets that size.

G-

[hiker]

you could try sawblades -double up on them..should be some small blades out there.

check my files--any thing with a 8&6--or test stand mill

[electrondady1]

i'm using 10"saw blades (doubled up)for hard drive mag rotors

you might need three or four for backing of .5" neos