I was writing my response before/while you editing your post, so it may seem a bit out of context. Believe me, I edited my post because it was much more emotional as well.

I too wonder what people are doing to smoke their MMMs. The BEC thing is one thing, but a flaming ESC is usually a problem with the setup.

Anyone notice that the rumor is that the MMM is rated for 200A, but the MMM in the "Special Projects" page is rated for only 120A? (http://www.castlespecialprojects.com...ntrollers.html) Is it a totally different controller than the RC version we use? I really don't think so, and wonder if the amp hungry motors and/or non-optimal gearing are just too much?

He tried but unfortunately, I'm a person who had personally experienced some of the things he mentioned. Like what I said in my response to his post, I had seen a lot of bad things including soldiers and sailors getting by suicide bombers and IED's.

Have you personally seen people getting killed everyday? I have and it was not easy at all.

Anyway, I hope to receive the MMM so I can enjoy it.

HAHAHA, so true. While it was not the babies fault, I am sure that it was most likely in the shallow end of te gene pool, if the parents were anything to go by... Thanks for the laugh!


Has anyone checked the specs of the fets used? I am running my v1 on 4s lipo in a erevo geared 19/50 with a 1515 1.5d. From what i can gather that is a reasonably amp hungry motor (not as bad as a 7xl?) and the esc has no issues with it. Motor temps seem to be around 150-260f, and the MMM never gets hot, mostly due to 100% running fan. My lipos do get warm, like 120f. They are trakpower 4900 25c packs, so I figure that the setup is beating 100amps. I have a pair of fp 3700 4s 25c packs that i plan to run in parallel. That should provide the motor with some more power, and we will see who the MMM does. 185 amps cont rating with the fp packs...

I've personally experienced it (first gulf war -- landed in Kuwait the same day it was liberated... got shot at by snipers, had to deal with unexploded ordinance, etc...) That's why I urge everyone to support:

http://www.bagramrcclub.com/


Give some money to a good charity.


ANOTHER shameless plug -- and thread hijack!

My guess is that CC attempted to follow the arbitrary rating method of other brushless CAR ESC manufacturers to come up with a number that could work for the sake of comparison. But then for industrial applications they had to supply real-world numbers for actual continuous operation (unlike the 15amp average/200amp peaks we are accustomed to).

Ha ha, great timing Patrick. I've also served from 92-96' and would definitely like to keep my experiences seperate from a hobby I enjoy during my leisure time.

Whoever decided to use that as an analogy should take this as a learning lesson. I just purchased a MMM online and hope to enjoy it shortly. Sure, there were issues with the V1. I purposely waited to see if they could fix those problems. As well, I've read AND learned from the experience of other people as to what works best. I'm going to use a 1515 2.5d in my converted REVO on 6s andf see what happens. I am pleased with the customer support Castle has provided other people and willing to take the risk.

We never rated the MMM for hobby use -- ever. The 200A figure was something one of our customers came up with.... We won't stoop to the level of companies who purposefully deceive the public about their ratings to sell products. For example, another company likes to rate their controllers at a "25C" rating -- basically they take the 25C surge (under 20 millisecond) rating of the FETs in their controllers and tout that as a "current" rating. What it is: essentially they are giving a complete BS rating -- the rating could never be achieved in the real world, and is therefore a completely useless rating.

Castle, in aircraft and boat world, uses realistic ratings. The current ratings can be achieved with steady state temperatures with rated airflow. So you could run, for example, a Phoenix-60 at 60 amps with 5mph airflow ALL DAY LONG without overheating the controller. If we rated it the way other car controllers are rated, the Phoenix-60 would be a 550 amp speed control. Could it handle 550 amps? No way... So we don't rate it that way. Even though our competitors in the airplane and boat markets CONTINUE to rate their controllers with unrealistic numbers, Castle has never, and will never, rate our controllers unrealistically.

In the car market though, companies have always used BS ratings to boost their sales -- they lie to the customers, the customers accept the lies as truth, and then they buy controllers that can't meet a BS rating.

We decided that rather than deceive the public with a BS rating, that we just wouldn't rate the MMM. If we rated the MMM with a realistic rating, we would look anemic compared to our competitors, when in fact the MMM could handle much more power. And I wouldn't allow a rating that was pure fiction either....

That's nice to know Patrick! It goes to show what happens when enough people spread a rumor, it becomes "fact".

Personally, if a setup consistently pulls 120A+, it's time to go with higher voltage instead. The only advantage I can see to having an ESC capable of 200A+ is the heat is spread out more, and usually has an overall total rdson value (which is only part of the heat source).

BTW: did you get my PM I sent a few days ago?

While I think that not rating your controllers is certainly better than a BS rating, I for one would like to know what the real world capability is of the controllers. Even if I cant compare it to other manufacturers I would be able to compare it to other castle controllers and decide what excatly I needed for my setup and power goals. I think that if you established some sort of real test procedure that rated your controlers and pulicicised the test methods, you are popular enough and have built a respectable enough reputation that you could have a chnace of establishing a standard that if nothing else other independant organizations could test to. Its not uncommon for RC magazines to do dyno testing on nitro motors now days so as this segment grows I would expect similar types of testing to happen in the RC pubilcations of the various speed controllers. At least I hope it happens someday.

EDIT: I actually think its an opportunity to establish your company as even more of a leader in the industry.

100% of the proceeds from the sale of the T-Shirts goes to Fisher House! Go ahead, make Castle give more money to charity! I dare you!

Continous and burst ratings for all the reversing controllers are published by CC here:

http://www.castlespecialprojects.com...ntrollers.html

The controllers are rated with different levels of airflow - from none to >500 LFM. In addition there are burst ratings with a definition of 10 second burst, 1% duty cycle in AMPS

It could even benefit them to pay for a independent testing of their products VS other manufacturers products and then advertise the results in a major RC magazine.

I'd probably get sued if I did that. You know how people in California are. :whistle:


edit -- (Not that I have anything against anyone in California who isn't a lawyer... we got sued in California for saying "Made in the USA" ... and had to change to "Made in the USA using US and foreign parts." --- we couldn't have been sued for that in any state except California.... I do think California lawyers are especially odious, but most people in California are great...)

edit2 -- (Nice use of the word "Odious" eh?)

I say get a good lawyer and go for it. Sued for the truth?!??!!!

But yes we do love our court arguments here in CA.

Wow 322 post already? you have been busy!

Great use of the word and true! I may no longer live on the left coast, but I'm a CA native. In the 20 years I lived there I saw more lawsuits for bogus BS then anywhere I have ever been. My step mom was sued by a neighbor for growing purple roses because the assn colors were green and gold.

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