MMM v3 into therminal + hot motor???
 

Hey,

I was today bashing with my savage, till suddenly the car stopped. I heard the fan spinning and after a few seconds the car didn't moved at all, therminal shutdown...

The motor gets also very warm> 60+ degrees(140 +F). It even becomes more hot when you stop the car, when you drive it cools down....

Who knows what to do? gearing up will make the motor even hotter i think???
Or what else to do to get the ESC cool and the motor a bit cooler.

Greetz,
Joram

It would help if you gave us more info? Is this the motor in your xmod, or your full size electric car? Or maybe a cordless toaster?

for how long did you run..before this thing happen????and what kind of motor it is????

and the setting of your esc???

A smaller pinion gear will help lower ESC temps. But first make sure there isn't any binding in the transmission/differentials/bearings as binding could be the cause of excess heat.

loll
your faster than me:whistle::mdr:

@Lincpimp, read the text, i really said i ran with my SAVAGE,

I use a Savöx 4570 motor, 1800kv on 5S lipo.
Drove about 10-15 minutes when it suddenly happened.


The driveline is OK, runs normall....

Settings of the ESC are:

Brake setting: 3
Brake amount: 50%
Reverse amount: 70%
Punch control: disabled
No drag brake
Start power:HIGH

Greetz,
Joram

first thing reduce your start power to the lowest setting, this will lower your temps, and what is your gearing?

You can try lowering the start power to medium and punch control to something like 30%. These two alone should help a lot.

I was planning to adjust the start power to medium.

I'm also going tu se an UBEC, so that is also a lower temp. factor!

Gearing is btw, 18/47 (16/47 but I run Cen diff's)

Greetz,
Joram

The mmm already has a built in, but separate switching bec so using another one won't do anything.

It will lower the temps, it is tested!

It is in the print so it makes heat, if you won't use it won't heat the whole thing...

Greetz,
Joram

I'll try to explain again... Escs like the Mamba max and about every other esc that has a built in bec WILL get lower temps from an external bec. The mmm is different then all the other escs. It has a separate bec built into the bottom of the case. The bec shouldn't produce much heat at all...

We will see, before problems with the MMM where the Switching BEC....

Don't say my problems are cause of that, but i prefer an UBEC above the BEC from an speed controller!

Greetz,
Joram

Sounds like you got her all figured out then. :lol:

The MMM has a UBEC built into it as Metallover stated. If you go with an external UBEC your temps might drop by 1 deg. F, if that. Hardly worth it IMO. And the problems the MMM used to have with the BEC have been completely resolved, so the only reason I can imagine using an external BEC with the MMM is if you have a V1 or V2 MMM.