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  #1  
Old 09-07-2011, 12:19 PM
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Default DC Motor Design

Anyone know anything about DC motor design? I'm looking to design/build a motor to turn at 15-20k rpm, create a decent bit of torque (I don't know the exact amount, but I will try to find that out), and use as little current as possible (12v). I found some N42 neo magnets that would probably work well (increase B) which allows us to decrease I. Torque being T = I*L*B*W*sin(theta), where T is torque, I is current, L is length of wire in the field, B is magnetic field, W is width of the coil (effectively moment arm), and theta is the angle between the normal of the coil and the magnetic field.

Thoughts?
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  #2  
Old 09-07-2011, 12:36 PM
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Well that's certainly an interesting turn from your previous idea, if I think it's for what I imagine.
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Old 09-07-2011, 12:48 PM
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Quote:
Originally Posted by terra View Post
Well that's certainly an interesting turn from your previous idea, if I think it's for what I imagine.
It's involved with what I was talking about previously, but probably not to the extent of what you're thinking. It's not going to be powering the vehicle, so the torque number doesn't have to be that high...
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Old 09-07-2011, 01:01 PM
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Originally Posted by 98AckCL23 View Post
It's involved with what I was talking about previously, but probably not to the extent of what you're thinking. It's not going to be powering the vehicle, so the torque number doesn't have to be that high...
Then I have reached the point of perplexion! I have a friend who designs these in his sleep. I'll try to shoot him an email if he's still alive.
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Old 09-07-2011, 01:06 PM
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Then I have reached the point of perplexion! I have a friend who designs these in his sleep. I'll try to shoot him an email if he's still alive.
I sent you a text with a bit more info... If you didn't get it or need/want more info to give to your friend, please let me know.
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Old 09-07-2011, 01:09 PM
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Did you? I have received naught.
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Old 09-07-2011, 01:13 PM
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It says sent 20 minutes ago. Your number change anytime recently?
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Old 09-08-2011, 09:08 AM
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Any thoughts from the morning crew?
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Old 09-08-2011, 03:31 PM
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i like kicker



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Old 09-08-2011, 03:33 PM
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Good for you. This ain't about sub motors, but spinning DC motors. You know, for moving things in circles, not in a linear fashion.
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