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Author Topic: Having fun learning wire size to magent power  (Read 1943 times)

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Basil

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Having fun learning wire size to magent power
« on: February 22, 2009, 01:02:03 PM »
What can I hope for. The 12'' by 1/4'' disk has for now 2x1x1/2'' magnets from Lowes. 12 ea. For now I have 5/8'' collars welded on to fit the 5/8 shaft to hold them together. All of this is setting on an old hard drive motor so I can spin it. The hard drive motor lets it spin for a long time after getting it going. Great little thing for testing this way.

 



I have found a great source of ready made coils. 120 volt to 12 volt dc wall warts. The ac coil side of it works great. At 150 to 200 rpm I get 1.5 to 3 volts.  I have not took time to be precise. I have made test coils out of # 12, 14 and other sizes with little luck with these magnets.

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That is with the 9 coils to 12 magnet set up.

Can any one tell me what kind of wattage I maybe could see out of this before it smoked the thin wired coils? Yea I know but it's fun to play with when it's cold out.

Mind you this is all in fun and learning.
« Last Edit: February 22, 2009, 01:02:03 PM by (unknown) »
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electrondady1

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Re: Having fun learning wire size to magent power
« Reply #1 on: February 22, 2009, 08:45:20 AM »
having a means of determining rpm is the next step.


a musical metronome is handy.


even a digital clock , left blinking will give you 60 rpm


is the air gap fixed now that you have welded the collars or can you adjust it.


 

« Last Edit: February 22, 2009, 08:45:20 AM by electrondady1 »
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Basil

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Re: Having fun learning wire size to magent power
« Reply #2 on: February 22, 2009, 11:23:41 AM »
Hi electrondady1

I have a rpm gage but have not used it yet. I was hopping someone with the knowledge could answer my question about the thin wired coils.
« Last Edit: February 22, 2009, 11:23:41 AM by Basil »
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vawtman

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Re: Having fun learning wire size to magent power
« Reply #3 on: February 22, 2009, 11:42:46 AM »
Hi Basil

 The ratings should be on the case.
« Last Edit: February 22, 2009, 11:42:46 AM by vawtman »
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Basil

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Re: Having fun learning wire size to magent power
« Reply #4 on: February 22, 2009, 02:52:42 PM »
The rateing was ac to dc at 1 amp but I am useing just the ac coil out of it.

Ok so no one really knows with the cheap magnets.
« Last Edit: February 22, 2009, 02:52:42 PM by Basil »
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Basil

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Re: Having fun learning wire size to magent power
« Reply #5 on: February 22, 2009, 03:07:14 PM »
Sorry electrondady1 nearly missed that one. The gap is ajustable.

« Last Edit: February 22, 2009, 03:07:14 PM by Basil »
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vawtman

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Re: Having fun learning wire size to magent power
« Reply #6 on: February 22, 2009, 04:36:27 PM »
 Probably nobody but you and your testing Basil.
« Last Edit: February 22, 2009, 04:36:27 PM by vawtman »
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ghurd

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Re: Having fun learning wire size to magent power
« Reply #7 on: February 22, 2009, 05:41:09 PM »
The AC coil is the one with many turns of tiny wire.

Rated at around 175ma is my bet.

G-
« Last Edit: February 22, 2009, 05:41:09 PM by ghurd »
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www.ghurd.info<<<-----Information on my Controller

Basil

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Re: Having fun learning wire size to magent power
« Reply #8 on: February 23, 2009, 07:15:16 AM »
Thanks ghurd.

I new it would not be much. But it's fun to light led's with them.

By the way ghurd I still have not hooked the controller to my fan that I got from you. I will post it when I do.
« Last Edit: February 23, 2009, 07:15:16 AM by Basil »
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electrondady1

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Re: Having fun learning wire size to magent power
« Reply #9 on: February 23, 2009, 07:49:57 AM »
basil ,


the very fine wire will allow very dense coils with  a lot of turns.

the great thing about using very fine wire is the ability to turn multi strand coils.

allowing you to reduce resistance  

the most i've turned is a four in hand coil.

« Last Edit: February 23, 2009, 07:49:57 AM by electrondady1 »
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wooferhound

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Re: Having fun learning wire size to magent power
« Reply #10 on: February 23, 2009, 08:30:28 AM »
Remember that the hole in the middle of the coil should be about the size of the magnet for best results.
« Last Edit: February 23, 2009, 08:30:28 AM by wooferhound »
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Basil

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Re: Having fun learning wire size to magent power
« Reply #11 on: February 23, 2009, 09:19:50 AM »
Thanks electrondady1 I will try that.
« Last Edit: February 23, 2009, 09:19:50 AM by Basil »
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frackers

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Re: Having fun learning wire size to magent power
« Reply #12 on: February 23, 2009, 08:39:26 PM »
You say "For now I have 5/8'' collars welded on to fit the 5/8 shaft to hold them together." - I hope you don't really mean that as the disks should attract each other, not repel.

« Last Edit: February 23, 2009, 08:39:26 PM by frackers »
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