Need A Response From Patrick @ Cc

Originally Posted by MetalMan

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.

[MetalMan]

Originally Posted by alangsam

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.

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).

[Pdelcast]

Originally Posted by alangsam

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.

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

[BrianG]

Originally Posted by Pdelcast

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

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.

[JaySki]

Originally Posted by Pdelcast

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

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.

[jayjay283]

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

[TruckBasher]

Originally Posted by JaySki

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.

Now that you mentioned it the first few packs on my modded V2 run fine until I change the LVC to a custom 1 and change the brake amount...after that I was able to run it for 15-20mins then it just stop working after serious cogging in forward and reverse....

Not sure if it make sense...not sure how the software affected the HW ...

[SpEEdyBL]

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

[JaySki]

Originally Posted by SpEEdyBL

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..

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

[BrianG]

First: Welcome to the forums!

Second: Holy run-on sentence BatMan! j/k.

Hopefully they'll get it right eventually. It IS a bummer having everything done but waiting on one small, yet vital part!

[JaySki]

Hooked the MMM back up the Castle Link and it still connects. Yellow light on the MMM comes on. Reset MMM back to defaults. Hooked everything back up and hit the switch.. No Dice. No lights.. No sounds.. Nada.

[auto2]

i would bypass the switch before i tried anything else. i have a mmmv1 and v2 with hours and hours on them . switches died long time ago.

[George16]

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

Hooked the MMM back up the Castle Link and it still connects. Yellow light on the MMM comes on.

These are the same things that happened to me. Right now, the yellow lights are steady after plugging it in the link. I talked to a rep from CC last night (I have to call at least almost midnight due to time difference) and asked about doing the BrianG mod.

So anyway, I'll be doing Brian's mod but instead of a UBEC(just ordered Dimension Engineering's Sport BEC), I'll be using one of my 6V rx packs from nitro revo. If it doesn't work, I will be shipping a dead MMM to CC and wait a couple of weeks for the replacement ESC to arrive unless Lutach's 10S Chineses ESC arrives first.

Brian, any special wiring diagram/precaution I need to be aware of while doing this with an rx pack? Thanks for your help.

[auto2]

i would think if the software is "locking up" like a windows pc flashing it and starting from scratch should fix it? did you try that?