Author Topic: Help me out with this motor  (Read 984 times)

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JW1111

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Help me out with this motor
« on: June 17, 2008, 11:12:16 PM »








I picked this up today for 15 bucks.  It runs good but I am not getting alot of movement on the needle with my fingers spinning it.  Also, when shorting the wires there does not seem to be any slowing.  Should the blue and black wires be wired together and the yellow and red? How exactly should the wires be?  It does not seem to make any difference what combination I use it makes the same amount of movement on the need of my mulitmeter.  Sorry for the stupid questions but Im still learning.  Thank you.
moved to newbies. Oh and max picture size here is 640 x 480 pixels thankyou
Kurt
 
« Last Edit: June 17, 2008, 11:12:16 PM by (unknown) »

vawtman

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Re: Help me out with this motor
« Reply #1 on: June 17, 2008, 05:41:26 PM »
Do you want to know why it's not making power?If so it's a induction motor and would need 4pls of mags on the rotor or a special recipe at high rpms.


 Not a good choice in mt opinion.


 Mark

« Last Edit: June 17, 2008, 05:41:26 PM by vawtman »

Ding123

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Re: Help me out with this motor
« Reply #2 on: June 17, 2008, 05:49:19 PM »
Hi.I think you have learned a $15.00 lesson already. I, of course,  have done the same thing you are doing now.

And then the people on the board told me to do my homework and read more,which I am still doing.I can't tell you a whole lot about motors but you have to turn down the armature,add permanent magnets,maybe ,rewire the coils.if it's got bushings you have to add bearings..in your case, it may be best to buy a permanent magnet motor and start from there, maybe.Anyway, You are hooked now...no turning back! Good luck!
« Last Edit: June 17, 2008, 05:49:19 PM by Ding123 »

ghurd

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Re: Help me out with this motor
« Reply #3 on: June 17, 2008, 06:35:59 PM »
I don't think it's so bad.

Remove the extra motor related stuff ("Thermally Protected" and that spring do-hicky), split the wires (maybe the yellow wire goes to 2 wires), make room on the rotor for 4 magnets (or magnet poles), add magnets, and it'll work.


I do not mean to imply it is great.  I mean it isn't too hard to make something that works.  I am happy if it works well for the time and cost (hobby) until the next one replaces it.


Master Zubbly (RIP) would only use 3 phase motors for a serious project that did not require rewiring.


Got it?  Try it.

Worst case it learn a lot for something better.

Two cents.

G-

« Last Edit: June 17, 2008, 06:35:59 PM by ghurd »
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vawtman

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Re: Help me out with this motor
« Reply #4 on: June 17, 2008, 06:42:31 PM »
Ghurd,Somehow i knew you would chime in to say the world is still o.k.  :)
« Last Edit: June 17, 2008, 06:42:31 PM by vawtman »

ghurd

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Re: Help me out with this motor
« Reply #5 on: June 17, 2008, 07:24:34 PM »
V-man, It seems I am the last active member for "down&dirty / add some neos / make some power".


Just so you and everyone else knows, sometimes it ain't so great.

Latest effort: New USA 20" box fans have a new motor, I tried, it's no good, 38ma at 12V and 650RPM.  The new motor is a lot different, tiny, and not great.

The unmodified factory rotor, with 2 types of proposed neos, shown here...

http://www.otherpower.com/images/scimages/2050/Trade.jpg


But it works.

Still waiting to hear if the guy wants to trade me for something nicer.  LOL


So yes, the one JW shows is not so bad, IMHO.


The world is still OK!

G-

« Last Edit: June 17, 2008, 07:24:34 PM by ghurd »
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vawtman

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Re: Help me out with this motor
« Reply #6 on: June 17, 2008, 08:07:46 PM »
Hi Ghurd,

 Down and dirty types learn alot more than people that have small fingers an can type with two hands.


 It's all in fun and your a great inspiration for me.


 Thanks.

  Mark

« Last Edit: June 17, 2008, 08:07:46 PM by vawtman »

Norm

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new box fan motors
« Reply #7 on: June 19, 2008, 12:20:39 PM »
Yeah the world is still OK, now you know that

with all the old type fan motors laying around,

use those instead of those new type...right?
« Last Edit: June 19, 2008, 12:20:39 PM by Norm »

ghurd

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Re: new box fan motors
« Reply #8 on: June 19, 2008, 12:49:51 PM »
Yes.  The old-style box fans where pretty nice.

The new-styles are not.

"Cheap" 1150 RPM single speed vent fan motors

should still be fine, and probably better.

Looks like an old-style box fan motor, but thicker.

G-
« Last Edit: June 19, 2008, 12:49:51 PM by ghurd »
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