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MM/Neu...just make somes test
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david lamontagn
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MM/Neu...just make somes test - 10.30.2007, 11:44 PM

OK, first, my revo is almost done, the only thing missing is my MGM16018. But tonight, i've my MM sit on my table on my workshop, and i decided to give it a try with my Neu 1515, 1Y.
I'am geared 16/38 and you know what???
NO COGGING AT ALL It start verrrrry smooth from a dead stop, and accelerate like a beast!!!!
This FlightPower EVO25 have moooooooooore power than my old 6000mAh, 14.8 maxamps pck.
I'am very happy with this pre-test and i don't know why i've spend $300.00 on my MGM
Anyways, i'll put the MGM in the truck as soon as i'll recieve it, and i'll keep the MM like a spare, because i think that MGM is very long for services
   
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bdebde
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10.31.2007, 12:36 AM

That's good to hear! Is it a new MM or an older one?
   
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Happywing
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10.31.2007, 07:31 AM

Doesn't surprise me. We have a bunch (and I mean a bunch) of guys around here (including myself) that run a Neu/MM combo without cogging. We re-wire the controller with 12ga and direct-solder. Add some good batts and the right MM settings, and you're good to go. The Neu/MM "problem" is way overblown.
   
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mkrusedc
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10.31.2007, 09:25 AM

Quote:
Originally Posted by david lamontagn View Post
OK, first, my revo is almost done, the only thing missing is my MGM16018. But tonight, i've my MM sit on my table on my workshop, and i decided to give it a try with my Neu 1515, 1Y.
I'am geared 16/38 and you know what???
NO COGGING AT ALL It start verrrrry smooth from a dead stop, and accelerate like a beast!!!!
This FlightPower EVO25 have moooooooooore power than my old 6000mAh, 14.8 maxamps pck.
I'am very happy with this pre-test and i don't know why i've spend $300.00 on my MGM
Anyways, i'll put the MGM in the truck as soon as i'll recieve it, and i'll keep the MM like a spare, because i think that MGM is very long for services
Good to hear David! Glad things worked out.
   
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david lamontagn
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10.31.2007, 12:45 PM

Quote:
We re-wire the controller with 12ga and direct-solder.
I'll try it, thank you
   
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crazyjr
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10.31.2007, 07:56 PM

I think its because, you are using the Y wind. I seen those with the D winds have a lot of trouble. gearing helps as well


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People here hate Nitro, I love it. I start it, run it about 50 ft from me and it dies, I go after it. Perfect exercise
   
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david lamontagn
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10.31.2007, 09:01 PM

Don't know the difference between the "Y" and "Delta" winding and cogging effect.
   
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Happywing
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11.01.2007, 07:39 AM

Quote:
Originally Posted by crazyjr View Post
I think its because, you are using the Y wind. I seen those with the D winds have a lot of trouble. gearing helps as well
Mine's a "D" and it works fine.
   
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entjoles
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10.31.2007, 09:21 PM

also running the revo 2 spd. should help, great to hear btw
   
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suicideneil
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10.31.2007, 10:25 PM

The Y and Delta winds use the same number of wires, as it were, but are configured differently to produce a higher or lower Kv rating. How this effects cogging exactly I dont understand either- maybe its like more agressive timing vs softer timing, but in the actual motor and not via esc programming?.... whatever, the only reason no to use the MM esc is simply down to voltage and current draw limitations, but it all depends on how hot & hard you drive I guess.
   
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david lamontagn
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10.31.2007, 10:28 PM

Ya, my driving style is very "soft". Never nail the trigger from dead stop.
I'am a track racer, and like to put lot of expo on the Tx to keep the thing controlable
   
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jnev
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11.01.2007, 12:55 PM

Happywing - what is you set up that you are using? Any tips to keeping the cogging to a minimum?


   
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Happywing
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11.01.2007, 09:13 PM

Quote:
Originally Posted by jnev View Post
Happywing - what is you set up that you are using? Any tips to keeping the cogging to a minimum?
MM/Neu 1512 2d/f 2600kv geared 11/46

Brake 30%
Punch Control 40%
Start Power Med
Drag Brake Disabled
Motor Timing Normal

We have found that pinion size has a lot to do with cogging. I have a high Kv motor in order to run a small pinion. Mine had a slight stutter in my first buggy. My present buggy is almost a pound lighter and the stutter has disappeared. If you can reduce weight and rotating mass, it helps.
   
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mkrusedc
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11.01.2007, 09:17 PM

Quote:
Originally Posted by Happywing View Post
MM/Neu 1512 2d/f 2600kv geared 11/46

Brake 30%
Punch Control 40%
Start Power Med
Drag Brake Disabled
Motor Timing Normal

We have found that pinion size has a lot to do with cogging. I have a high Kv motor in order to run a small pinion. Mine had a slight stutter in my first buggy. My present buggy is almost a pound lighter and the stutter has disappeared. If you can reduce weight and rotating mass, it helps.
I ran into that problem with the NEU in mynE-Maxx. The larger diameter motor hits the tranny and precludes smaller pinions. IIRC a 17t pinion was the smallest I could get to mesh.
   
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MetalMan
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11.01.2007, 01:48 PM

The 1512 2.5D on MM in my buggy works well also. There is occasional cogging, but I don't race (and if I were to, the buggy wouldn't be stopped much at all).


SH Z-Car, Custom Crawler, 8s Savage, 12s XTM XLB 1/7 buggy, 4wd 4-link rear/IFS Pro4 truck, Custom Hyper 10 Short Course, Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz
   
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