MMM v2 Success / Failure Poll

Originally Posted by DRIFT_BUGGY

My V1 got a flogging on the weekend and got grass/debris all inside it and still no problems. Fan still works (original fan)

Not trying to jinx you and wish you further success but i think you have a freak v1 , heck even v2 are not working that well without mods .Whatever you do don't touch it , modify it or change any of your set up .

[DRIFT_BUGGY]

Originally Posted by ffactory666

Not trying to jinx you and wish you further success but i think you have a freak v1 , heck even v2 are not working that well without mods .Whatever you do don't touch it , modify it or change any of your set up .

lol, don't plan on it. It's excellent. About 120F is the hottest it has got which was racing no stop for 40minutes.

[JeffEmbracedDC]

Chapito is also on his first v1 and it's held up through many many runs. First in his Revo and now his LST2 (both with 4s and a 1515/1Y). It seems there are some V1 ESCs that contain perfectly fine BEC components.

-Jeff

mine seems to be working now with only a 3600mah 2s test pack running through it. i am very reluctant at this point to invest anymore in batteries and servos. the failure rate of this product is just starting to sink in given that at ANY point the esc can malfunction and take out my packs and servos as well as the esc with it. all this and the manufacturer is not liable for this extent of damage. to me now really defeats the purpose of buying the MMM in the first place and am now seriously considering the trip back to Novak. sad but true.

[auto2]

well 123revo if it helps any i have my origional v1 from the first batch and a v2 and never a problem. wish my mmm's broke and i won the lottery but it seems my mmm's are perfect so ill never win the lottery.......

[RBMike]

Originally Posted by RBMike

I have 3's working V2 now, 2 with more than 1 hour on them & 1 with about 3 hours on it. Out of these, 1 fan broke (blades). I only put 1 good in the poll. No mods.

Update: The MMM with the broken fan blades now has a broken fan connector. When I went to replace the fan with the broken blades the connector came right off the board. No matter what CC does to fix the dead MMM issue, there will alway be the mechanical issue on this SMT bottom mounted fan connector & poor fan wire routing & fan to grill clearance. (Until they get sick of fixing fans/connectors & move it.)

[BrianG]

Many are adding some type of foam standoffs placed on the motor and power solder areas to keep the circuits from hitting the case. That and a little dremeling of the case to allow more clearance. The foam solution works well and requires no permanent modification - just 2-3mm of added foam provides the clearance needed.

[lincpimp]

Originally Posted by BrianG

Many are adding some type of foam standoffs placed on the motor and power solder areas to keep the circuits from hitting the case. That and a little dremeling of the case to allow more clearance. The foam solution works well and requires no permanent modification - just 2-3mm of added foam provides the clearance needed.

CC really need to add some sort of pcb suspension, or something. When I pulled the bottom plate off the dead v2 I had to laugh, that little foam thingy stuck to it is next to worthless, all it will do is stop the fan connector scratching the case...

I added some shrink tube to the fan wires on my v1, they were starting to rub thru on the pcb. I also added shrink to the wires as they exit the case, they were looking like they could be damaged too. Pity the BECs die, seems like a decent controller. I do not mind adding the foam cushion and the case clearancing, but running without a bec is a bit much...

[BrianG]

Yeah, that's what adding the foam does; suspend the PCB so the circuits clear the case, even when landing from jumps. Putting foam on the circuits themselves is next to useless IMO.

When I modded my case, I also created a slightly larger hole where the throttle wire exits and wrapped it in heatshrink to provide a little more shielding.

Yeah, having to mod the BEC is a bit on the extreme side of what a user should have to do to get a working controller. But if the choice is between a modded (but working) ESC, and an unmodded one that needs to repaired 4+ times, I'll take option 1.

a little off topic i suppose but... has the poll stats been adjusted at all as failures happen after posting that it is working normally ??...or are those fairly accurate stats ?? thanks

[jhautz]

Nope. I voted working normally and then mine failed later. I'm sure there are others.

[BrianG]

I try to edit the poll results if the post is detailed enough for me to be sure what failed and what didn't, and if it has been counted as one or the other already. You should be able to see a note added in the posts where I edited the poll results.

Aside from that, it's really hard to say how accurate they are. The poll is limited to RCM forum members, and am sure there are a lot of other users out there unaccounted for. The only stats we could trust are those that CC states, and we also have to assume they are true.

yeah ,i was afraid of that ....LOL...i have a new MMM v2 and NEU 1515 2.5 still in the box's and not in any hurry anymore to finish my truggy conversion cause i pretty much know it's gonna fail...
....thanks guys for the replies...

[BrianG]

Another CC employee just created a thread to report details about any V2 failures. It would be beneficial to go ahead and install it in your vehicle. If it fails, report all the details requested. Yeah, it may be a PITA to wait, but the more people that have a failure and can provide accurate feedback, the quicker these issues will be resolved.

Originally Posted by BrianG

Another CC employee just created a thread to report details about any V2 failures. It would be beneficial to go ahead and install it in your vehicle. If it fails, report all the details requested. Yeah, it may be a PITA to wait, but the more people that have a failure and can provide accurate feedback, the quicker these issues will be resolved.

yeah ...thats a good point . thanks, i will go ahead and finish it up ....thanks guys