Mamba Monster dead? - Page 8 - RC-Monster Forums

e-mike · 10:40 PM

wtf..im tired my mmm cut constantly (when i run about 5 min)just give a small blow on it and he reset ,then he run without issue for 5 min more

i think im on the borderline before the death of my mmm

i buy it from mike...should i could ship directly to cc or mike???or really wait for the complete death of the esc???

and what is the adress of cc..

JerryF504 · 11:44 PM

Quote:

Originally Posted by lincpimp

Any reasons why they cannot be repaired? Are the boards crapping out, or just a bunch of components that are not worth replacing?

All she would say is that it couldn't pass the test so they were going to scrap it and I would get a replacement mid-June. I'm hoping Joe will be able to shed some light as to what the problem actually is. Mine was not melted like some of the others so I thought it was going to be a fairly simple fix.

TexasSP · 11:56 PM

Here is the edited email I received from Joe tonight around 8 pm. I edited because the other part is not needed to get the point across. Pretty cool of him to respond at 8 pm in my opinion. I feel better and worse, but I am not mad, I know they want it working right. I also can appreciate the stress this is causing the team at CC as well. I think we all need to remember that while it is okay to be critical, we must remain tactful in our approach in dealing with this.

Quote:

We are just on hold right now
while the engineers test to see what the issue is...we don't want to
send out any more controllers where customers can possibly have this
issue. I hope you understand. We worked for a LONG time to get this
right, it performs PERFECTLY in final testing, and then some weird thing
like this happens that we just can't/won't accept as acceptable. We
strive to keep our word that our stuff is the best bang for the buck,
and we're not going to let you guys down. We've been testing for a few
days now and purposely blowing up controllers and inspecting those sent
in to see where the problem lies. Once we get a handle on things, rest
assured we'll take care of you.

GriffinRU · 05.23.2008, 12:46 PM

Badcaps.net :)

CC what was wrong with FM-type caps?

-Your switching BEC doesn't look right...

Pdelcast · 02:57 PM

Quote:

Originally Posted by GriffinRU

Badcaps.net :)

CC what was wrong with FM-type caps?

-Your switching BEC doesn't look right...

Nothing wrong with the Rubycons, couldn't get FMs. Remember WE ARE NOT BUYING CAPS in Asia.... so no possibility of getting "seconds" or phonies or manufacturer rejects like there is with Chinese manufacturers.

BEC doesn't look right eh? In what way?

Understand that I've been doing this for 22 years... it's not like this was designed by an amateur...

Patrick

e-mike · 05.23.2008, 06:57 PM

just a question....i dont want to be off topic but today i run really hard my maxx(for a final test before sending to cc) with my mmm and a 8000mah maxamp 20 c(yesterday i run a 4000mah 25c hecell) and my esc work without issue not''cutting'' and it did the job flawlessly

could it be my 4000mah pack was the problem...with the 8000 no issue but the 4000mah after 5 or 10 min the esc stop and restart few second later or no choise to reset with the switch?????

anyway im gonna do some other test ,,,,just to be sure..for now with a 8000mah.my mmm feel good!!

GriffinRU · 05.24.2008, 10:09 AM

Quote:

Originally Posted by Pdelcast

Nothing wrong with the Rubycons, couldn't get FMs. Remember WE ARE NOT BUYING CAPS in Asia.... so no possibility of getting "seconds" or phonies or manufacturer rejects like there is with Chinese manufacturers.

BEC doesn't look right eh? In what way?

Understand that I've been doing this for 22 years... it's not like this was designed by an amateur...

Patrick

It is alright at the end it is your "baby" and you are in charge of getting right components.
Strange relation with subsidaries you have, if you cannot request seconds, how do you know that you got the best in the first round?

I just had it my hands for 10-15 minutes and I was missing some caps's in switching BEC, what are the ratings for this BEC anyways, amps wise.

Fair, 22 years is alot, and you do have a respectable company and product. But do not underestimate people around you, I am simply trying to help you here even promoting your stuff.

If you have any concerns or recommendations, PM it to me I am willing to work as a team and would be happy keep some aspects private.

Pdelcast · 03:42 PM

Quote:

Originally Posted by GriffinRU

It is alright at the end it is your "baby" and you are in charge of getting right components.
Strange relation with subsidaries you have, if you cannot request seconds, how do you know that you got the best in the first round?

I just had it my hands for 10-15 minutes and I was missing some caps's in switching BEC, what are the ratings for this BEC anyways, amps wise.

Fair, 22 years is alot, and you do have a respectable company and product. But do not underestimate people around you, I am simply trying to help you here even promoting your stuff.

If you have any concerns or recommendations, PM it to me I am willing to work as a team and would be happy keep some aspects private.

Fair enough ...

There is 100uf of output capacitance on the switcher -- ceramics, not electrolytics or tantalum. The input capacitance is 44uF of ceramic, right on the FET inputs, in addition to the approx 1000uf of electrolytic. Fets are snubbed.

As for the capacitor quality -- We've been using Rubycon and Panasonic both for many many years, and have never had a quality problem with either one. Rubycons are usually more difficult to get. The Panasonics usually have shorter lead time, and are more available -- but in this case we had the Rubycons available and Panasonic needed 12 weeks.

In our testing, the Rubycons ran a little cooler than the same value Panasonic FM series.

I'm not sure what you mean by "if you can't request seconds" -- we could, but we don't request seconds. I'm just saying that there isn't any possibility of us getting seconds or rejects -- we don't buy through brokers.

Patrick