MMM V3 - First Run Opinions
 

So.. I know I ran it a bit last night, but today.. I grabbed a pack of MaxAmps 2X 2S2P 8K and my Zippy H - 2X 3S1P 5000 and went to the big back parking lot behind the shopping center around here.

On 4S - Temps never broke 45 on the 1Y and maybe 50 on the MMM, granted, it's only 50 outside maybe, but I am impressed.
Geared 22/56 I hit 43.8MPH. The Eagle Tree says I hit a max Amp Draw of 114.77 Amps(A little higher than I expected to see) MAx RPM was 34,403. About where I would have expected. Nice set up for mid 40 runs and solid performance.

Decided to press my luck and ran 6S. Temps still stayed pretty darn good. Motor ran about 60 degrees, The MMM had to have hit 150ish as I heard the fan run briefly. Even after a solid pass and temp reading, the MMM read about 80. Now.. This thing on 6S... is absolutely SICK! I managed to hit 59.8MPH and probably could have hit over 60, however I ran into to problems... I would run out of parking lot trying to open up the throttle, or I would left the front end over and end up on the roof trying to get to full speed a bit faster. I swear.. I had to be in the 40-50 range and if I opened the trottle up all the way, it would still lift the front end up and over. I had quite a few runs of watching the revo slide across the asphalt on it's roof doing 40+. Needless to say my etrex Summit GPS now has some nice road rash. :)

Max Amp Draw on 6S was 125.59 Amps Motor hit 49K RPM (Not going to do that often!) High Watts was 2455 and mAh used came in at 4370 between the 2 packs.

The V3 performed FLAWLESSLY and seems like it is going to be pretty rock solid. I look forward to seeing how it does long term.

:yipi:

Nice! Very good report man. Thanks.

That is SO good to hear! Sounds like Castle have finally cracked it. :smile:

What was your motor on the revo?

JaySki,

I'll be in the Detroit area (near Metro Airport, Romulus) from Sunday-Friday of next week. I'll probably bring a vehicle with me to goof around with. PM me if you wanna have a bash session and let me know what type of rig I'd need. (I have a ton of cars btw..)

NEU 1515 1Y


Killa - Will do.

wowow:party:the best thing i read this month!!!!!i receive a other e-mail from cc today:yes:now im less scared

thanks for the review!!!!

Me too:lol::wink:

I just updated an MMM V2 I had and it ran great for an hour of running so far. Previous MMM's in our setups were dropping, so this is excellent. Thanks Castle!!

Was hoping to try out my V1 with the new firmware tomorrow but by the looks of it I will be working on the 1:1 scale car :whip:

Why don't you get out and race that thing locally? There are a lot of MT drivers and some other electric ones too around here..

Looks like I'll be updating the firmware & have sent the peeps at CC an email for 5 cases!! Yup, I have 5 MM's. Well, 4, my friend has one.

This is great news though.

Where?

They hang out here.

http://bannedrc.com/forum3/viewtopic.php?f=42&t=11098

Happywing on this forum races with them too.

I'm getting mine today! Nice review

i can't wait for more review:whip::lol:go jayski run your v3!!!!!

Nice report and good to hear the MMM v3 is worth the wait.

It sounds like your set-up is exactly the same as the new brushless e-revo (MMM v3 Neu 2200).

Was your MMM programmed differently than stock?

A parking lot is great for some high speed runs, but hate to see the rollover damage.

Sounds like they finally found the bastard with the voodoo doll. Good to hear!

yea.. the roof of the original body is now a moonroof. Also wore the front body mounts down to nothing. Had to replace those as well.:lol:

Is the V3 fan like the v2 fan? (only works at certain temp?)

That is controlled by the firmware, not the fan itself. So, yes.

Can't be, my V1 with new 1.2 firmware still runs the whole time

It's not supposed to.

Ooh :eyes:

You know what, I may have misunderstood what I read a while back. Looking through CC's release notes on the different software revisions they make no mention of the fan control through ESC temperature. Ah well, maybe somebody else can recall what I cannot seem to...

They mentioned it in the box of the last ESC they sent me.
http://i87.photobucket.com/albums/k1...m/fanstuff.jpg

Still wood of perfered it to kick in a little earlier than 150F, maybe 140F. Must be something in the board that makes it start at that temp and not the software

Patrick said it was controlled by the processor, but I have no idea what makes it go.


http://www.rc-monster.com/forum/showthread.php?t=13635

It sounds to me like the fan control must've partly been a hardware addition, otherwise V1s would have had it when running the same firmware. IMO, it's no big deal; I guess there's a *slightly* higher chance of a fan faliure with a V1, but at the same time, it should keep things a tad cooler too. Doesn't bother me.

Doesn't really bother me neither. Didn't update to 1.19 as i thought that feature would be included. Would rather fan run all the time but either ither, as long as I have a running esc

We had to add a transistor to allow the processor to control the fan -- but the temperature at which the fan turns on is controlled directly by software.

It is set at about 150 degrees F, which is about 65C. The hardware is good to about 120C, so the fan comes on WAY before the temperature limits on the controller are hit.

good to know:yes:and pdelcast i can't send you a pm...??why

120C :gasp: What temp does the MMM shutdown? (if it has that option)

It shuts down at around 120C. If it does shut down, it waits until the internal temp drops below 70C before it will rearm.

V3 updates
 

I received my MMM V3 yesterday. I am running a Hyper 7 buggy with a 4S Poly rc 6K and a 20 tooth pinion. I ran it on two charges already and it seem
like it's working out real nice. The Hyper 7 is so stable at high speed and handles pretty good also, doesn't even flip over unless it goes in the grass and slid. I am pretty happy so far, I am also using the internal BEC from MMM.
Do you think the ESC can handle a 25 tooth pinion for more topend. I'm running a Neu 1515 1.5 D and it is a monster for it's size. Thanks for trying to please your customers Castle and any comment on the pinion gear will be nice. I don't wanna burnup my MMM, so any comment will be appreciated. Thanks again Castle Creation for doing the right thing.

Gearing depends on whether your motor and batts can cope with the current draw- the esc will be fine as it will thermal before any damage is done (famous last words). What are your current motor, esc and lipo temps after a good run? 20 to 25 seems like a rather large gearing increase though, might want to rethink that and go to something more like 22tooth pinion, or a few less teeth on the spur instead (same effect).

I actually was running a 25 tooth pinion when my MMM just stopped working.
But it was at least 7 minute of speed runs. I know that wasn't the cause of failure. I hooked up a fan on top of Neu 1515 1.5d and my motor does not get past 120 degrees at all. I am running a Poly RC 6k 25C lipo, this batts are awesome, lots of power and very good in retaining the voltage after a couple of months of not being use. To think about I paid 150.00 for a barely use pack from another forum.

25tooth:surprised:its huge,,,and what is your mmm version???

edit i saw the other post...is a v3

and the 1,5d draw a lot of amp:yes:if the esc come wot fast ...its normal the esc work hard to give the all the current that the motor want...

i got my v3 on friday. had the same issues with the fan wires, shrink wrapped them and trimmed out the tab on the lower case that was interfering with the happiness of the little wires:angel: also moved the foam pad from under the fan plug to the center of the pcb. ran it friday night for about ten minutes, and again saturday for another ten minutes. running on 6s with a 1512 3d 15/46 timing zero punch control off brakes at 70%. opted to use the electric brakes this time with the v3. saves about 4 ounces. although if you use a 1515 the extra weight might be worth it ther worked extremely well with a couple of my v2's. the v3 performed very well. slow speeds were smooth and throttle control was very precise. tiny bit of cogging on startup when the car sits for a minute but goes away immediately. esc was never even warm to the touch, motor was about 90 and batts were cold. driving was high speed passes with street tires on a superb asphalt parking lot. with the current gearing it should see ~38, might try going to a 14 and see what happens. the only track i know of around here is smaller and 38 was too fast last time i was there. all in all castle has done a superb job refining this controller. i am glad to see a working unit (5th time is a charm:lol:) it was a long 10 months putting this project together but well worth it. i will post a video as soon as i can.