Need A Response From Patrick @ Cc
 

okay this starting to seriously seem like i need to do something drastic. so here it is, PATRICK RESPOND i have sent pm's and no reply. today i got #3 and guess what after programing it with the castle link, i plugged it in and turned it on, PUFF!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!! this was my first monster that was "repaired" (U1 resoldered) whatever the hell that means.
im runnin a rc8 with a 1512 3d 15/46 and 2 3s 4000 li-pos in series. NOTHING SPECIAL. so why cant castle get me a speedo that works or respond to my pm's? i work ALOT so i cant call during the day. my wife contacted them to get my first two repaired. i know im unlucky but this is a little too much. i know the car works, it ran for ten minutes on MMM #2, so what am i supposed to do? ANYBODY?

Keep trying. The law of averages says you'll get a working one at some point.

BTW, "U1" usually refers to an IC chip (not a FET, cap, etc).

I have to say... those who puff 3 and go for 4 should check the fortune cookie that says your set up is wired like turd

Eww, what a mess! :smile:

I have to say... those who puff 3 and go for 4 should check the fortune cookie that says your set up is wired like turd

wiring is fine, wiring doesnt work sometimes and not others. not a novice here by any means. if i can bring power from the gen. plant all the way to your home i pretty sure i can get my latest r/c to go.

If the poll that is up on this board is accurate I can see how with a 50/50 chance you could get 3 bad one's in a row.

yeah the numbers dont lie. i sure hope (like i am the only one) they figure it out. i am sure they will but damn! patience is not one of my virtues. the second one i had while it worked was great! i dont want to win the contest, just want the car to run lol

I don't listen to much to what people have to say about how it must be your setup or bad wiring or something like that.Well if I did I would believe that Larrydino i frying all his MMM'S like everyone else say's he is just because he run's 6S and has made it know that he like's to make high speed run's and that his truck is way over geared now I'mnot saying anyone on this board is saying that but on the traxxas site I've seen alot implie it,but the thing is people don't know that his truck is geared 22/62 and that's the biggest problem is no ever ask's they just assume it's the guy's setup or something else that he did to make it his fault.I don't ee his gearing being that extreme I ran 22/68 and 24/68 with a MM on 4S in my 3905.

Not if they all fail...

i would reccomend trying the next one on a lower voltage maybe 4s. i now a bunch of people who are running mmm on 4s with out any problems.

If you only run 4s, you may as well get a cheaper mm and bec:yes:

:lol: Sorry to read all these reports of MMM's going up in smoke. I have one sitting in a box new that I haven't even bothered hooking up. I can't decide if I should run it or sell it. The problem is what do I go with the will run without issue? It seems that the esc's that are out just arn't up to the task at this point. BTW, I have a Savage SS, FLM conversion, Fiegio 8XL, 4s 25C 5000 pack. As mentioned above for 4s just run an MM but I want to go up to a 6s and I haven't found much on-hand inventory for the MM's sitting around.:whistle:

Well, good kuck,

Darion

Just sell it. My replacement V2 only lasted 5 minutes. It just stop running. No smoke though.

Wow...Castle what is going on here? I know I'm having a ESC made, but it won't be as popular as Castle, but I was hoping the V2 would be working right so I can get one. Castle, you know some of the guys here are well respected by a lot of people and some of them will even send business else where if needed. A lot of people will listen to their advise and go with what has/is working. I would like to know when we should expect a reliable running Monster Max. I just need a reliable unit, not a 100% trouble free, but just a reliable one.

Definitly, i'll not try mine in my e-revo on 6s, i'll try it in my Slash on 3s.
I'll try to save some cash this winter and give a try to another MGM:whistle:

The first step is for them to admit there is a problem...

they have.:yes:

Huh? Where.

I'am looking for too, and i can't find it anywhere:eyes::whistle:

that would be pointless because its a 100 amp esc. ine has been rock solid on 4s lipos and 16 nimh. im not gonna try 6s mainly because most of the mmm ive seen or heard of that failed were on 6s

yeah but its rated for 6s, why buy a speedo rated for 6s and not use it? higher voltage means more efficiency and lower current draw

Maybe the next generation of MMM (V5, V6.......thrue V45:lol:) will be rated for 12s, like that we could use 6s without (maybe without:whistle:) any problems:tongue:

yes but its rated for 6s and your running it at its max so your bound to run into problems.

its like taking a little 4cyl 5speed civic and running it at redline the whole time you drive.

i think david lamontagn has the right idea they need a 12s controller that 6-10s workes great on but on 12s your on your own.

i dont really see how, ran all my 1/10 scale controllers at their max (6 cells) for years with no problems. i would think the controller would like the extra voltage/lower amperage.

plus why over rate your product why not just rate it for 4s if thats all it can handle

Fools.

MMMs have been failiing on 4s and 6s, so its not a question of voltage at all, in the slightest, nada.

When the esc pops a few fets or goes up in flames, thats due to excessive current draw, usually through a bad or weaker fet; hence the reason why any esc can go pop if you push it to hard or have an amp hungry motor.

BEC failures (the majority of issues reported) are due to something else- most likely poor circuit layout, or bad components, as has been theorized elsewhere.

The MMM is rated for 6s lipo, only limited really by a component that is rated for about 25.8v, so running 6s lipo (22.2v, or 25.2v peaked) wont kill the esc.

Not quite a fair comparison, those ESCs often have components rated at 16V or greater, or roughly twice the input voltage (under load anyways). The MMM is set up for ~25V max, and the FETs are rated at 30v. The margins in the MMM are much less, but CC had to do that to keep cost and size down.

id pay 30 more dollars to get some better fets and bec.

It'd cost a lot more than $30 at this point because of all the tooling/molds/time/money CC has invested into the current MMM. And I'm sure CC had certain goals such as price, power, voltage, etc. for the MMM which they wanted to stick to.

not so sure. becs and fets dont necessarily have to be of different size - they can be of better quality, pick of the yield etc. v2 has a beefed up bec vs v1 without any compromise to packaging.

at this point his design is fine or it wouldnt last multiple runs before failure. there are certain components - fets and becs that arent living up to the ratings that castle thinks they are buying- read made in china.

this is classic - vendor supplies samples to win the bid. they are tested and no issues. then sends 2500 of them that have 10% yield failure.

Do you really?

If I recall correctly, CC is already using some of the best FETs out there. FETs aren't the whole story though, as you know.
As for the BEC chip, I have no idea what they could do better (other than improve it).

I don't buy ANY materials out of China, and most of my parts are direct from the manufacturer.

So no, this isn't the case.

We are investigating right now -- but the failure rates are not all that high (regardless of the noise on the boards...)

We have also seen that most people don't have a problem, and then others toast 3, 4 or 5 controllers in a row. We are trying to figure out WHY some people toast many controllers, and others are just fine. It might be broken servos (we have seen broken digital servos damage switching BECs) or it could be bad motors, we just aren't sure yet.

Patrick

Makes sense. I'm sure there are people NOT on boards who run fine but don't bother posting the results. Not everyone is as fanatical as we are. :smile:

I am running a brand new NEU1515 1.5D, Stock Servos. My last MMM ran FLAWLESSLY with a UBEC, until I changed setting in Castle Link. Up until now, I left it all at defualts.. even the LVC.
Yesterday, I changed the LVC to 12.8, Punch Control to 70% and modified the throttle curve a bit. 10 minutes later it jerked a bit at slower speeds and died. Motor never hit 100 and the MMM was still relatively cool. Didn't even smell like anything burnt. No lights nothing. Disconnected batts and threw them on the charger, tried another set of Batts and still nothing. Only running 4S.
Prior to the changes in Castle link.. I ran the snot out of it the weekend prior. Had a few runs that hit 55MPH with no real heat issues and no problems.

Did you try putting it back to auto lvc and testing it ? Heard they were having some issues with manual lvc settings

Yank on all your wires. You may never know if a connection is bad just by looking at the heatshrink.

Connections.. I did check and all appeared good.

LVC setting back to default, No I didn't. I'll give it a whirl when I get home. Seems if it was an issue, the ESC wouldn't have worked at all. But.. ya never know..

So is there a issue with the LVC manual setting?I havent taken any chances changing mine to manual or custom.I have 2 MMM V2s and is 3s and the other is 4s.Both work flawlessly:whistle:

i just wanna put my two cents in i have a brand new erevo,torn it down and sold all original stuff on ebay just to brushless i went with nue 15151yf ,two hyperion eoso606i chargers ,two 11.1v,5000hv maxamps lipos,spektrum dx3r radio and reciever,and waited for the mmm,well i got mmm i ran it for 3 0r 4 min just puttin around brought it back too turn it off and go inside,it wouldnt turn off with the switch,the fan was also running,motor and esc was very cool to the touch, i unplugged the batteries and plugged back in and nothing DEAD,it was along wait for this mmm but CC got me a replacement within a couple weeks, I got replacement friday installed it REAL excited and ran it for maybe 5 min everything fine slow speed,then i thought i would start honkin on it a little and still alls good wicked by the way,for maybe 3 more mins,turned it off and back on it worked fine, it was gettin dark so it put up and was feelin good i gotta a good mamba,next morning went to run it again and DEAD unplugged batts,tried everything it reconizes the castle link and the yellow light comes on but nothing,i sent them both back today, man i cant say how bummed i am i have a boat load of money wrapped up in this thing and it just sits, im in the pcb business myself and know the problems of building them the people at castle seem to be a good bunch and are working on this hard,they say they will get me out another asap but its gonna be a while because they have no bare boards i want to say its my first time with cc i love the product and the castle link,i understand the people at cc are trying but man how a little thing can bum a grown man out so much,...joe