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What's_nitro?
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12.29.2008, 02:06 AM

FWIW, if you ever need to figure out how many poles an inrunner motor has; Remove the rotor from the can, roll it on a flat metal surface, note how many times it "sticks" in one revolution.
   
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Takedown
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12.29.2008, 02:10 AM

Quote:
Originally Posted by What's_nitro? View Post
FWIW, if you ever need to figure out how many poles an inrunner motor has; Remove the rotor from the can, roll it on a flat metal surface, note how many times it "sticks" in one revolution.
Or just make it a helluva lot harder for yourself and open it up.


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E-Revonut
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12.29.2008, 02:32 AM

Quote:
Originally Posted by What's_nitro? View Post
FWIW, if you ever need to figure out how many poles an inrunner motor has; Remove the rotor from the can, roll it on a flat metal surface, note how many times it "sticks" in one revolution.
Using this method it is obvious that it's a 2 pole motor, I just tried it with my HV rotor with a snapped shaft


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Takedown
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12.29.2008, 02:34 AM

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Using this method it is obvious that it's a 2 pole motor, I just tried it with my HV rotor with a snapped shaft
That makes total sense...


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E-Revonut
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12.29.2008, 02:44 AM

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That makes total sense...
What makes total sense? That it's a 2 pole design or that I have one with a snapped shaft The Novak HV4.5 was what introduced me to BL, got it a few months before they released the 5mm shaft rotors. I'm actually pretty sure I was one of the first to get the new shaft after pre-ordering and waiting forever after I snapped this one. Honestly the HV isn't a horrible setup. I'm planning on racing this summer and if the track goes with ROAR rules and only allows 4s and approved motors I will most likely get another, prolly the 5.5, but I hope that's not the case as I like my MMM/Neu 5s much better! Sorry for the ramble


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himalaya
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01.09.2009, 02:21 AM

Quote:
Originally Posted by What's_nitro? View Post
FWIW, if you ever need to figure out how many poles an inrunner motor has; Remove the rotor from the can, roll it on a flat metal surface, note how many times it "sticks" in one revolution.
Actually you can know the pole number WITHOUT OPENNING the can.
Just rotate the motor shaft, feel how many "detent" in a whole 360 degree round turn.

2-pole rotor will feel 6 detents, that is, 2 polesX 3 stator phases= 6 sticky positions.

4-pole motor will feel 12 detents, same rule, no matter it has a slotted stator or not.


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Last edited by himalaya; 01.09.2009 at 02:24 AM.
   
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