MMM Temp without Fan?
 

How many people have recorded the temp of a MMM without a fan? If so, what setup and what temp do you get?

I took the top of the casing off with the fan on the truggy. After 5 min racing runs with a 1515 1.5D, I was getting up to 155F. I could position the MMM to get better cooling.

In my FLM Savage X SS, 8XL, 4s 4900mah pack, 16/48.
I was getting 90-110F with fan working. The fan quit on me and temps rose to 140F.

I had temps after a 15 minute race of 150ish with no fan.

where are you guys taking temps. at on the MMM. seems like it would be kinda hard with that large plastic case.

Where do you get a replacement fan (stock or other)?

Anyone in need of a replacement fan can give tech support a call. We'll be happy to send a new one out to you. 913-390-6939 and hit 1 for tech support. DO NOT RUN THE CONTROLLER WITHOUT THE FAN ON...IT IS OBVIOUSLY THERE FOR A REASON!!! ;) And I might add it also VOIDS YOUR WARRANTY!

How's mine for international order?

Is it ok to run another fan on top while waiting for the replacement (2 - 3 weeks to Australia)
Will it void the warranty at all by removing the fan from the MMM and running off the RX power or seperate BEC?

could you please send 1kg of these to australia? thanks. :)

Questions???
 

Just curious. Are the replacement fans of a new MFG/supplier? Or are you sending the same fan as a replacement? If you are using a new supplier can we get that info for future reference? Thank you Mr. Ford.

Same fans...no shipping 1kg of them to Australia ;) , and ANY running without the fan, separate BEC or not, will void your warranty.

Joe:

Castle may want to consider using a fan with a longer wire so it can be powered off the receiver instead of the ESC board. Fan failures seem to be pretty common and caused by either 1) blades hitting the grills of the case or 2) the fan connector breaking off the ESC board.

One mod folks have been doing is adding small spacer on top of the fan or grill to prevent the blades from hitting the grill. Additionally, others are dremmeling out the bottom of the case a hair to prevent the ESC board from hitting the bottom of the case which is what is appearing to cause the fan connector to break.

so if we open MMM's Esc case out , it means wanranty is void, isn't it?

I highly doubt it since you're just removing the sticker and pushing in 8 tabs. Plus, you need to remove the case to access the fan.

I found a fan that may work as a replacement if you don't want to get another from Castle or want to have a backup on hand. It's a Novak fan (those other guys) that measures 30x30x6. I measured the stock fan @ 30x30x7. Both take a 5v input. There's one at my LHS that I'll pick up and test fit to make sure.

And like Joe said, do not run it without a fan. Judging by the temps some of us have seen it's just not a good idea. :no:

Link to the fan:
http://www3.towerhobbies.com/cgi-bin...&I=LXMYH6&P=ML

I did that last night, Yes the Novak 30X30 fan fits.

Pshaw! Who cares about a warranty! I say MOD IT!

I still think the MMM can be used without a fan for the majority of the setups on here. Just look at the MM with no fan currently being run in MTs, buggies, etc - and that's on 4s (or a few on 5s). At 6s, current will be lower (assuming geared for the same speed), so there should be less heat. And I assume the total rdson value of a 200A ESC is lower than a 100A ESC, so there should be less v drop on the FETs for a given current, which equates to less heat.

Nice "No-Fan" Avatar :)

Some Pics and Instruction would be nice, how to fix the new fan(Castle,Novak..?).

And that's the actual fan from the MMM. :smile:

Putting in a new fan is simple. Pop open the case, press the itty-bitty tab on the fan plug, pull plug out, remove ESC guts, and pop fan out. Reverse the order to install a new one.

I have a hard time understanding the warranty is VOID if NOT using a fan.

The POOR design of the fan in the esc makes it IMPOSSIBLE to run with a running fan.

Those things break within minutes of use.
Why did you not steal the design of the concept that works with modded MMs?

does running a wire mesh or screen help save the fan. the fan on my old MM lasted about a month before it stopped.

My fan died at about the ten minute mark. Is there a common pc fan with a matching plug that is better? I really don't see the point in calling tech support for another fan that will take longer to replace than it lasts. Now that I have it out one of the fins is broken too. I did not drive the truck that hard today. Think I had one bad landing.

This is what I'm doing. I have 4 8Ah packs through it and no broken fan. Three of those packs were at a track, so lots of dirt.

Bye:mdr:

I have heard of a few plugs snapping off the MMM board, so if this happens you would have to send it back to CC and not connect the fan to another power supply? Will it void your warranty at all by running a CC BEC or RX Battery?
Can email CC at all as the phone call from Australia will probably cost more that a box of fans? And will it just get sent regular post (3 -4 weeks to Australia?)

BrianG, I really don't understand your hatred (and it is a hatred!!) of fans. Placing a fan on a heatsink drops temps by 20-30F. Cooler is more efficient, correct? Why is this bad?

Pics of Novak fan installed. I'm not going to bother trying it out unless my Castle fan fails.

http://i21.photobucket.com/albums/b2...e/DSCF3328.jpg
http://i21.photobucket.com/albums/b2...e/DSCF3321.jpg
http://i21.photobucket.com/albums/b2...e/DSCF3326.jpg

:grrrrrr:Sounds like you boys need to get some fans in stock!!! I'll take 6 please. That should last me a week or so, then I'll place another order. Oh yea... and a flip top esc case would be nice so I don't have to tear the whole dang thing down every 30 minutes or less of run time to replace a fan. I already have 2 tabs breaking off of one of my cases from opening and closing it so much for fan maintenance. While your at it add a couple new cases to the fan orders.

One of the white plugs has already completely broken off of the circuit board from hitting the bottom of the case so I cant even run a fan on it the way it was designed. I guess I'm out of luck on that one. Oh well... when it dies, it dies. Hopefully the Tekin controller is available by then.

Warranty void if running without a fan is the craziest thing Ive ever heard since I haven't heard of a stock installed fan lasting more than an hour. :grrrrrr:



++++1!!!!



Heres a picture of the bulletproof 1/8 controller. Does this void the warrantee? Its the only way I can keep a fan on it.
http://i66.photobucket.com/albums/h2...z/CIMG3193.jpg


Your right. It is kinda hard to take a good temp with the cage on it. I get the highest readings shooting straight down the top fan hole to the heatsink. I'm sure the internal temperature is significantly hotter than the reading off of the top of the heatsink, but we will proobably never know for sure.

YES!!! I must have the only magic fan! :surprised: I've just squeezed past the 1 hour mark! :na:

Damn, now I've jinxed myself....watch it break tomorrow. :lol:

:lol:Yea, you must. Whoo Hoo!!!! We found one. :party: Now just clone it and send one like it to all of us.

Just curious? What are you doing with the MMM? I think they might be OK if you are just running it around the street or in the park or something. But any kind of rough handeling and they are toast. Mine ran fine all thru set up and some testing at the local park, but the minute I put it on the track it was a gonner.

Can't see why you can't cut off those 4 tabs as they can't be doing much, probably get more air flow and easier to take temps

http://i32.tinypic.com/14m47qc.jpg

And you haven't done nothing to it from factory, still original?

Couldn't other wise CC wouldn't send out replacement fans as the case has to be opened to change the fan.

Integy make a 30x30x6.5mm 7 Fin Cooling Fan 7.2V (Max8.4V) which is $5 cheaper than the Novak one but currently not in stock @ Tower
http://www3.towerhobbies.com/cgi-bin...?&I=LXTYA2&P=7

:whistle: Rough handling? More like abuse. Last time I took out my Savage (with MMM) I snapped 1 heavy-duty dogbone, bent another and cracked the shock cap on one of my Aftershock shocks. If it wasn't for the shock cap I would've kept on jumping. 10-12ft jumps...and unlike a cat I don't always land on all fours!

The fan has stopped twice though. 1st time I switched the MMM off then on and the fan restarted. 2nd time a blade of grass blocked it. Removed grass and it worked fine. Also I run in very loose dirt/gravel.

No mods to the Monster. I was running an 8XL, now a 1515/1.5d, both on 4s. I'll probably be running a 1515/1y on 6s this weekend. :mdr:

I don't hate fans....unless they are used where they don't belong. I use fans in my PC (although I'd like to get rid of these). I use fans to keep me cool. If the fans fail in either of these, I can easily tell right away. But neither of these are subjected to the very harsh conditions (vibration, impacts, debris) these vehicles are subjected to.

I have always been of the opinion that a properly selected and geared system should never see high temps. None of my setups use fans (even my two Quarks) and I haven't seen temps over 130*F. The only exception is my CRT.5 but that's because the 4600 motor is simply too small for the truck (I get temps around 150*F, but that's too high).

Also, if you are relying on a fan to keep your system operational, then that is just a recipe for disaster considering that it is sometimes difficult to know when a fan fails until it is too late.

Usually, mechanical components break first, and fans are no exception.

Besides, you already have a source of flowing air because the vehicle is MOVING (usually at a decent speed). A little ESC mounting fore-thought and maybe a little extra heatsinking is just as good as a fan without the hassle and risk.

yeah you sure should not 'depend' on the fan. however, everthing else equal an additional fan will help to keep the components even cooler. if the fans are correctly mounted they won't fail easily. those little fences that are available help a lot for the long living of those little fans.

bye
rhylsadar

http://www.jaeser.org/~beat/images/16-11-04/fan4.jpg

I don't know for this particular Integy fan... I had some Integy fans in the past and compared with Novak’s fan with the same size, the Novak was by far more efficient.

May have to purchase the Novak fan from US since it is only $14US and retails for $39AUS in Australia :oh:

As far as I'm concerned, we should all be getting free fans from CC for at least a year if not longer. If they are $15 a pop I'll have to spend $15-30 a week on fans to keep one in it and running. Assuming 1 fan per race day (optomistic at this point) I will have gone thru the cost of the controller in 11 weeks.

What is the non-warrantee repair cost for the MMM? Anyone know. I'm just trying run the economics on this. If its say $75 for the repair (MM is $50) I can see it being cheaper to just run without a fan and hope it lasts 5 weeks in between melt downs.

Anyone thought of sending one to GriffinRu to let him work his magic. If he can " modify " the mmm as well as he has the mm, for a small price, you should have a bulett proof controller.....I have a brand new one in the box and am considering letting him experiment on mine.....

He chimed in not to long ago and was already tinkering with one. I think he mentioned something about putting the brains and built in BEC from a MMM onto the power board of a MM (with his mods of course) and creating a smaller form factor controller that would handle 4s or possibley even 5s. Perfect for a 1/8 buggy. I'm sure he is looking at what else he can do with it, but at that point he was only just starting to explore from what it sounded like. I'm sure he will come back and post some ideas once he gets to spend a little time on it.