RC-Monster Forums - Mamba Max Cogging

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- - Mamba Max Cogging (https://www.rc-monster.com/forum/showthread.php?t=4810)

I thought the Mamba wasn't recommended for the Neu motors in the first place.

I haven't seen any documentation that says you can't use a 4 pole motor. And the description pages for the Neu motors here say:

Quote:

Originally Posted by RCMonster.com

...The Neu motors are 4-pole motors and will work with the Quark line of controllers as well as the MGM controllers (with the latest software)

The price and specs for the MM are just so nice, it's hard to pass up. I mean, where else can you get a 100A, 4s ESC with the programming features for $140?

I've seen Shawn Palmer recc neu motors w/ the MMax many times, so I would think its ok.

Yeah, i noticed the very same Brian. Neu's are a pita on the MM.

Which makes me think the Plettenbergs may be even harder.

Here is an excerpt from an email exchange I was having with tech support at CC. I was inquiring about the MM that died on me moments after plugging it in for the very first time. They inquired about the motor I was trying to run, and told me that the MM was not set up for other motors. Just the MM motors. I then questioned why this was not documented anywhere and why they were selling the ESCs as stand alone units if this was the case. Apparently they are not recommending using any motors other than theirs until the next software update. But, they cant tell me when that will be.

Quote:

I also agree that we should be informing customers that the Mamba Max ESC is tuned to the Max motor and might not work well with other motors. On the aircraft side of your business we pride ourselves in the fact that our Phoenix line of controllers will work with almost all motors out there, and work better than a same brand controller will work with a same brand motor.
But with the Max controller our engineer's fine tuned the ESC to pull every last bit of power and efficiency out of our motor. This tuning involved compensating for a specific motor's inductance and resistance and well as setting a specific dynamic timing range and tuning for our two pole slotless motor. All motors had different characteristics.
My prior statement about specific tuning was general; in fact a Lehner is close in design to our motor and will work much better with our ESC the way it is than say a Plettenberg or Neu motor. But it will not be optimized. We will be coming out with a software release that compensates for a motors specifics like our aircraft controllers do which will allow our Mamba Max ESC to work well with motors other than our own.

Bernie Wolfard
Product Support Supervisor
Castle Creations
235 S Kansas Ave
Olathe, KS 66061
913-390-6939 Ext 123

Interesting, I have a rustler with MM esc and 5700 motor and then I also have a 1/8 buggy with MM esc and Neu 1512 (2200kv). I get the same stall/stutter on the rustler as I do with the 1/8 buggy. Only difference is that the rustler only stall/stutters for a second then it will take. The 1/8 buggy you have to return to neutral then throttle it again. This is only an occassional quirk btw, I can get it either one to do the stall/stutter if I go full throttle, brake to a full stop, over and over and it does it 1 out of 6 times on the rustler and more on the the buggy. I wonder if it is more of a weight issue. I'm probably a little over geared on the rustler.

Hmm that's diff than that was being said on their support thread on RCZ, but I'll take that as the official word.

Quote:

Originally Posted by Serum

Daf, speaking of which;

how is the rc10t2 doing? you must get serious runtime from it with that 12Ah pack?

Thank you, it's doing fine! And yeah, the pack usually lasts longer than the truck :)

I only had it on a real track once so far, though. But it's on the BMX track almost every weekend now.

BTW, I never had any sort of cogging with my MM/5700/2S setup.

DAF

Blaming the problems on the Neu motor is B.S.

The boys at CC love the Neu motors and they have used them extensively, even hoping to be able to use them to re-brand as CC motors.

I can believe that the larger Neu motors (and other brands) may not be optimized, but THEY have been talking to some of us for months about running these setups and never happened to mention that we should expect to have problems due to a known compatibility issue.

These problems are unexpected and they are not limited to Neu motors. As someone already mentioned.... the problems are apparent even with CC motors.

I must say that CC built an incredible product in the MM but they must find and fix these glitches. They work awesome for the most part and I wouldn't have anything else in my 1/8 conversions right now.

I would rather live with an occasional minor "quirk" of the MM than go back to the horrible brake issues of the MGM or the self-destructing Mtroniks... or the who-knows-when-it-might-get-fixed $$$$ service of some other brands.

These are rather small glitches and sometimes not even repeatable. Some would difficulty ever noticing some of the glitches. But they ARE there.

So I am still a CC guy and I still expect to help them do some testing for the MMM, but I don't like hearing from CC that these problems don't exist and don't need to be addressed.

I know Joe visits many forums, so I hope this one is of some concern to CC. And since you guys have been working with Neu motors all along, why don't you give us a software patch specificly optimized for them? That would be in the best interests of everyone.

Good to hear it's doin fine Daf! you like the handling/runtime? what is the weak part on the truck? replaced a few of the spare arms?