MMM V3 - First Run Opinions

[lincpimp]

Originally Posted by Pdelcast

I think we need less power -- our test motor for high power testing was a Neu 1521/1D -- on 6S. NEVER TRY THAT AT HOME. I'M SERIOUS.

We broke so many transmission and gearing parts -- seems every run we would get 2-3 passes and then something in the drive train would fail.

Ahh, I see. Figured that crashes were causing the damage. A 2900kv motor on 6s sounds like fun. What vehicles were you using? I plan to use a 1521 1y on 6s in an erevo.... I doubt I will be as harsh as you guys due to the fact I am not trying to test the motor limits! But I am sure that you can tell me if the erevo will hold up?

Thanks for fixing the MMM Patrick, best esc out there.

NO it'lll not hold up.....never

[Unsullied_Spy]

Originally Posted by david lamontagn

NO it'lll not hold up.....never

+1, I annihilated a diff with a 1515 1.5D on 4s so a 1521 is out of the question. I'd go with a 1515 1.5Y on 6s maximum (the E-Revo diffs are supposed to be tougher than the ones I had, hopefully that's true). The Tranny is pretty tough, but the bottom gear is plastic and a 1521 could very possibly destroy that gear.

[RBMike]

I put more the an hour & a half of track time on the V3 today. Worked perfectly. Fan was on a couple of times when I came in but went off usually before I could get the body off. Looking good so far.

Todays V3 set-up:
MBX6-RCPD conversion (MBX5)
Medusa 36-60 2K
5S A123

I did open it & put some shrink tube on the fan wires cut a little off the inside lip of the bottom cover to give the wire a little more room.

[tuclai]

So I took my MMM v3 out yesterday and today. Before the v3, I had three MMM v2 and all of them died on the same day after about going through half of my NEU 5000 lipo!

I got my MMM v3 back on Friday and yesterday took it out just doing speed passes on the dirt. Ran for about 20 minutes and LVC kicked in. Temps were good througout. Motor= 135, battery 127, ESC 117.

I then took it out to the tracks earlier today, and through two batteries everything was good. Motor= 140, battery 130, ESC 120 On the third battery after LVC kicked and I temped. Motor 140, battery 130, ESC 155!!!!. Wondering how all of a sudden the ESC was at 155, then I noticed the fan was not on.

So Looked into it and usually when you first turn on the ESC the fan is suppose to spin then go off. Well it never spins. The ESC worked, just hot and fan was not spinning. So I took off the case thinking maybe the fan connector came off, however it was still plugged nice and tight. So I disconnected the fan from the board and plugged the fan directly into a receiver battery and the fan doesnt come on. Verified there is 6.5 volts, however fan not turnning on. Looks like the fan is dead. Oh well, at least the ESC still works, at least there is progress there.

My other two MMM v3 is supposed to be delivered tomorrow, so one will be the replacement for my truggy and the other will be going into my buggy. Now I just dont what I should do with the unit with broken fan. Should I just find a replacement fan and run external wires directly to the receiver? What do you guys think?