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lxmuff
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06.18.2007, 09:47 AM

We use 10T to 12T pinions from century heli with the Kyosho 46T spur. The flywheels are the pinions that I have seen up to 23T pinions and has bad cogging. I don't know how low of a pinion you can go without cogging because we have never had the problem. I think I've heard of people having problems with 16T, 46T spur, MM and Neu motors.
   
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Sower
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06.18.2007, 09:52 AM

I guess I'm not getting the flywheel idea here and how you avoid the cogging with your Neu/MM combo. I assume it's like a clutch, right? Do you have a link to an example or a picture?
   
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lxmuff
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06.18.2007, 10:27 AM

I don't know what you want a pic of. Here is a 11T pinion on a 46T spur with a LOSI 8ight.

http://www.rctech.net/forum/showthre...=158327&page=4

With a larger pinion on the mechanical side, it is harder to overcome the interia of the rotor from a standstill and to overcome the static load of the vehicle.
If you ever drove a manual automobile you coud get the idea of starting your vehicle out in a high gear and seeing that the vehicle will stall or you have to feather the clutch a lot.

On the 3 phase induction motors that these Neu Motor are designed around, it is essentially one magnetic field in the rotor chasing another field in the stator. If they cannot move relative enough of each other, it is like a short(they heat up, the same thing happens too when there is too much "slip" between the fields) and so does the esc for trying to put more load to the motor. That is why the sensored motors work better because it knows the relative position of the rotor while putting the inital power to the motor.
   
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Sower
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06.18.2007, 10:36 AM

Right, I get that part. I guess I was thinking that you were saying there was some kind of additional piece and you were calling it a flywheel. I think I just misunderstood you. If I hear you right, you're simply saying that using a smaller pinion will reduce the resistance on start up. Right? And therefore I would need to use a 10 or 11 tooth pinion and work from there. Am I on the right track?

Thanks for your patience, and nice 8ight by the way! :027:
   
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lxmuff
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06.18.2007, 11:08 AM

Yes. I think a way to put it with the way the MM is with the Neu, the overall starting mechanical resistance is too much for larger pinions.

These motors seem to be the standard for power and keeping lower temps than others. I thought my Plett Maximum was cool, but the Neu has even better temps without the fan and more power.

Last edited by lxmuff; 06.18.2007 at 11:10 AM.
   
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silentbob343
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06.18.2007, 12:17 PM

Quote:
Originally Posted by Sower
I guess I'm not getting the flywheel idea here and how you avoid the cogging with your Neu/MM combo. I assume it's like a clutch, right? Do you have a link to an example or a picture?
lol, flywheel=large pinions with lots of teeth. He was jokingly referring to those large pinions as flywheels.

nevermind, I see you got it in your last post.

Last edited by silentbob343; 06.18.2007 at 12:19 PM.
   
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Sower
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06.18.2007, 12:45 PM

Sweet. Yeah, I guess since I'd never heard a pinion referred to as a flywheel I was thinking it was some other piece or something.
   
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