MGM 22418 & 6S LiPo is No GOOD
 

I posted this in another thread, but then I thought it might be better to start a new thread about this …

I just got two 22418 MGM's (one for me and one for a buddy) and both were to be in 1/8 buggy using a Neu 1515/1.5D ... anyway, on 3s Lipo it was doing fine .. but when on 6s .... white smoke and that sweet smell of burning electronics ... So, I thought it could be the brand spanking new Neu motor so I used another motor that works just fine with a Quark 125 Monster Pro..... long story short ... both are fried now :( .. ohh yeah and that was over about a WHOLE 3min of using the ESC ....

Does anybody else have or had the same problem with this ESC? … And how is MGM customer service?

Anyway, I e-mailed them about the problem and waiting for their response …

Oh, God I wasted so much money on making a new 1/8 chassis purely for a brushless setup and I was betting on the 22418 that it would handle the 6s LiPo and work nicely on a 1/8 … I will keep you guys posted on the outcome?

Az

Ohh, just in case ... I will not stop my project :lol: I'm currently just waiting on Mike to give a price on a part that I have request ... The show must go on hehehe

:surprised:Realy hope that my 16018 will hold up my 4s li-po and 5s2p A123, Neu 1515 1Y on my e-revo:eyes:

As i said in another post, pay alot of $$$ for controller don't give guaranti that's a good controller.

Been using my 22418 with 6S Flightpowers and a Neu 1521 for over 2 months now with no problems. The guy I run with has a 16018 with 6S Neupower batteries and a 1515. He beats the heck out of it and no smoke. I hope this isn't a bad batch as I was getting ready to order another one. Keep us informed, please!

I was really looking forward to using the 22418 with the 1515/1.5D .. :) Well I hope they can fix whatever it is and fast

I run a MGM22418 with 5S flightpowers, 1515 1.5D/F, and 18/46 gearing in my Jammin CRT. All I see is a hint of cogging if I mash on the throttle (I can fix this by gearing differently). Temps are super cool.

I also have another MGM22418 that I run with 6S flightpowers, 1515 2.5D/F, 16/51 gearing in a HEAVY all aluminum Emaxx (big honkin MT beadlock tires & rims too). Zero cogging and temps are well within acceptable limits-quite cool actually.

I have not experienced-knock on wood-any problems with these ESCs...I think there has to be other issues that caused your problem.:neutral:

I had my 16018 go the same way, I sent it back for repair, no word yet.

Good to hear :) It just might be that those two had something wrong with them.

ohhh, by the way ssspconcepts Would you like to share the settings of the 22418 on the Jammin CRT?

Thanks,

Az

Here is the settings that were on both.

The burned_one pic was the first one that worked for about 1 min before it burned. That was on 1515/1.5D and two MaxAmps 5000mah 11.1v

The other_one pic worked on another motor (XLT-1 Nemesis) motor using one 5000mah 11.1v LiPo and then two LiPo's (22.2v) and the rest is history :oh:

ssspconcepts, hehehe I like your sig .... I had the car back then too ... loooooooooool and I had a green radio with it .. but i can't remember the brand ..

What was your gearing...and was you gear mesh okay? I keep my gear mesh a little farther apart than some folks...just a hair. But it helps the gears spin with less resistance. Not trying to insult your intelligence but I once saw a guy that had the motor pinion pressed up against the spur so hard that the car would barely move!:gasp: That would definitely put some strain on the motor and ESC. I'll get some screen shots of my MGM settings in the next day or so and post them...but in all honesty, I didn't really adjust too much...I think just the battery and brake.

hehehe ... its funny, because I do the exact same thing ... I always play around with the mesh, to see which would yield the least amount of resistance without creating to much slack .....

The gearing was 14/46, but at any rate the buggy was on a stand, I was just testing and making sure everything was ok, since I'm planning to build a few of them for myself and some friends :)

Man...it sounds like a bad batch. But that just doesn't seem possible...

I assume you ordered them from Mike. What did he say?

Was it a stick radio? If so...the green was sort of like olive green right? Sounds like a Futaba Attack...same one I had.

Right now, I just want them to work, because nothing else on the market would suffice.

No I got them directly from MGM, but I thought that this forum would be the best place to post about it since, I like RC-Monster and Mike sells MGM I just want to share my experience

Yes it was a stick :yes: nothing else was available, I mean the wheel radio was not out back then and yes it was olive green with a silver handle bar on top .... man you had the same radio ... dude don't tell that you were born in 73 ... hehehe

The worst thing about that car was the resistor, you remember the white stone like block with a sliver heat sink that did not even touch the resistor .. hehehe .. and the gears used to break like every day and it was a pain in the behind to fix .. hehehe … but still I had so much fun with that R/C …. Ohh a friend of mine still has his grasshopper from back then.

You are right...nothing else on the market will suffice. Sad thing is that all the companies that make good HV ESCs are outside the U.S. It amazes me that a small company in the Czech Republic is our best source of HV electronics.

Now I am going to vent on all the non hack companies that can't seem to hang :diablo: The AMERICAN companies are getting their just deserts. How in hell did we manage to put a man on the moon, win two world wars, and win the cold war? :neutral:. As far as I am concerned this is simply laziness on their part...that the best they (and they know who 'they' are) can come up with is a 12 or 14 cell ESC. Better cowboy up and get with the program folks...its a complete disgrace. Please take a little pride in what you do...and at least catch up with the competition.:whip:

I have tried my best to make up their minds, but I think they see more money from the Birds and Fish. I can run, but I can't fly nor swim (RC wise) :lol:. I'm trying to get an HV controller made, but I have to rely on folks that told me they could do it, but now I feel like crap mainly because I have nothing to offer for now.

When you offer it...I'll buy one....and don't feel like crap...you are freelance.

I am talking about "big American" companies who are supposed to be leaders in the RC industry. However, when they hear ticked off customers venting they say "but we are just a small company that started 15 years ago at our kitchen table" or "you can't set a deadline for something that hasn't been invented yet." Okay...the quotes may not be exact but they are close...closer than they are to HV. Anyway, they should pull the ads from all the RC mags because they are not leaders...they are currently followers.

Truly amazing ... you are absolutely right .. The first thing one should learn in business is to have a niche and I guess a lot of those companies are just lagging behind …. And it goes beyond that, I mean one of the most important things to me that makes the US of A so great is “Choice” in all shapes and sizes … in this case we need options .. I want to go into a LHS and see a verity of ESC that can handle the intended use.

You made me feel a lot better. I can't wait to have my controllers done so I can rub it in their faces. Inmagine a nobody like me making an HV controller just for the car market.

Everything must have a start point :intello:

Yes it does. I hope the engineer can get the software done soon.

I feel for you on your speed controler loss, but it unfortunately seems like a recurring trend.

http://www.rc-monster.com/forum/showthread.php?t=8550

I am not a defender of MGM, but remember that bad feedback outnumbers positive feedback 10:1.

I burned 2 MGM 16024s I dont know if it was user error or what but I dont buy them anymore. I was running a big 2240 on 8s lipo maybe I was spinning the motor too fast and pulled too many amps. Mike got me taken care of.

I sent mine 16018 back and they emailed me as soon as they got it, which was great. The way I look at it, is that we have to keep sending them back. If there is a weakness in their product they need to know about it and fix it. One way is for them to see a common problems. Their controllers are great imo.

Plus, I have had a problem with every ESC I have owned, even my traxxas vxl esc. I just had to solder the plugs better onto the board. After months of that controller stopping for no reason, it turned out to be loose plugs!! I even sent it back, which they found nothing wrong, since it was hard to reproduce. I am calling them though, they need to know those plugs were loose. The solder job was bad, if others are like that, it would not take much to loosen them.

Hey Wildman,
My settings are the default settings, except I switched to 5 Lipo for the battery setting. I will tell you this...unbeknownst to me...when I plugged into the USB interface, the software automatically returned my controller to default settings...to include setting it back to 2-pole motor mode. This took me about an hour to figure out why the controller wouldn't work after I checked my settings. I went thru the initial setup about four or five times and the controller would just sit there and beep. Well, I went back to the USB and noticed that it was in 2-pole motor mode-bingo. I set it back to 4-pole mode (for Neu motors are 4-pole motors) and went back thru the setup procedure and everything works fine now--whew!!!!!! Quite a scare I had there. You can see the video of my maiden run if you goto my picasa link http://picasaweb.google.com/ssspconc...36201234213570

UPDATE:

After I e-mailed Martin, I got a call back from him (That was nice) and he said no matter what the case is, they will fix it ... and that it will not take too long to do so.

He will be needing the ESC and the motor being used, which I will FedEx to him ASAP.

ohh, and if the problem is from the ESC and not the setup they will fix it at no additional cost (under warranty) ...

The good thing is that $800 will not be a total waste and the fact that they want to see the ESC and motor, indicates that even if the problem is form the ESC, they want to understand why!

I will keep you guys posted.

Az


EDIT: SO far MGM Compro customer service is an A rated

Wow!!!! this CRT is a BOMB:surprised: And very clean looking job bude:yes: But seem to have pretty bad cogging on start??
Can you tell me the weight of your truck in RTR mode please?

Thank you!!!!!!!

agreed, that thing has some nuts. just get rid of that cogging

Thanks dude. Yeah it does cog some at launch...mainly when I mash on the trigger...the problem is probably due to the gearing: 18/46. I am going to put in another order with Mike and get some more smaller pinions. I do have some smaller ones but they all are on my other trucks. As far as weight goes...I don't have a scale so I am not sure. I will say this...it is heavier than I thought it would be. When I compare it to my all aluminum emaxx trucks, I don't see a significant difference:surprised:. BTW...What kiind of scales do you guys use?

If it is the controller...Are they going to take care of the motor too?

What do you mean? take care of the motor too ... like kill it ...hehehehe

No, seriously what do you mean?

I take an electronic laboratories scale (0 to 6kg). I put a stand on the scale, make a Zero, and put my truck on the stand.

Me e-revo, with Panthers Komodo tire weigh 9.4lbs and with Proline badlands tires, it's 10.5lbs.

Very nice setup you have there ... When I first saw the vid, I was thinking why its not that fast .. hehehe .. then when I saw the wheelie .. I was YES .. that’s the way it should go.

I must of misunderstood your previous post...I thought you meant that the controller and the motor were fried. My thought was that if the motor was fried because of the controller that they should replace/repair that too. But after going back and re-reading your post I see that you wrote "both" controllers were fried...not "both" the motor and controller.:neutral:

I wonder if you can get one of those scales at Home Depot or Lowes...I am not at all familiar with the brand or application. I suppose a decent postal scale could be purchased from OfficeMax.

I used Brian's speed calculator to see how fast your truck is going and it showed speeds of over 66MPH. The MGMs that I have don't cog at all.