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  (#16)
mkrusedc
NeuMaxx
 
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11.01.2007, 04:46 PM

I found that a linear throttle curve was a problem because I have a "heavy trigger" finger. IIRC at the 30% point hold with the left mouse button and pull down so that the results is a soomth curve upwards.
   
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MetalMan
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11.01.2007, 05:33 PM

I don't have the MM in front of me (and it's at home, I'm at school), but I think the settings are:

-High start power
-30% punch control
-timing I'm not sure of, but I think I have it at medium
-linear throttle curve
-60% brake


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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mkrusedc
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11.01.2007, 09:12 PM

The cogging was helped tremendously by making the throttle curve exponential. My settings were:
brake 30%
punch 80%
start pwr high
motor timing low
   
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  (#19)
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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  (#20)
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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  (#21)
Happywing
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11.01.2007, 09:21 PM

Yes, I've heard that is a problem with the Emaxx trans. A smooth can motor would allow a smaller pinion, but I don't know how small.
   
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  (#22)
lutach
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11.01.2007, 10:35 PM

One thing I noticed that might be causing all the cogging is the stregth of the magnet on some motors in conjuction with the stator.
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  (#23)
johnrobholmes
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11.01.2007, 10:46 PM

Quote:
Originally Posted by lutach View Post
One thing I noticed that might be causing all the cogging is the stregth of the magnet on some motors in conjuction with the stator.

I was talking to Joe down at castle today, and he mentioned this as well. The gearing is sensitive for consistent loaded down startups.
   
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  (#24)
BP-Revo
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11.01.2007, 10:52 PM

Well, this is one thing I notice with the Tekno conversion. It utilizes the stock Revo clutch which allows the motor to rev up before actually having any load on it at all, which would reduce cogging quite significantly, if I'm correct.


BL Revo: CF G2R, LMT1940/7, 6S FP 30C Lipos, MMM, Hitec 5955TG
CRT .5: 7075 Ext Chassis, LMT1930/7, FP 25C 3S Lipos, MM
   
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  (#25)
BrianG
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11.02.2007, 12:08 AM

But, given the torque of BL, wouldn't that put considerable stress on the driveline? I suppose you could dial in some slip to fix that though...
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