RC-Monster Forums

RC-Monster Forums (https://www.rc-monster.com/forum/index.php)
-   Castle Creations (https://www.rc-monster.com/forum/forumdisplay.php?f=34)
-   -   Monster Max 8S plans? (https://www.rc-monster.com/forum/showthread.php?t=18794)

lincpimp 02.24.2009 11:18 PM

Quote:

Originally Posted by Pdelcast (Post 264815)
More than likely everything 12S and above will be opto only.

No prob, we just need a hv ccbec to go with it...

TexasSP 02.24.2009 11:29 PM

^^^What he said^^^

76Bentley 02.24.2009 11:36 PM

Can someone tell me what "opto" only is?

Also Patrick, are there any chances you guys are going to continue the Neu Castle motor line with the larger motors, something that might work in a Baja 5B?

azjc 02.24.2009 11:57 PM

"Opto" means there is no on board BEC to power the Rx and you will need an external BEC or Rx pack

Unsullied_Spy 02.25.2009 12:06 AM

I would love to get my hands on a 12S Monster. I bought a HPI Baja 5b with the intention of converting it when Mike's conversion becomes available and that would be the PERFECT ESC for it.

Sammus 02.27.2009 08:01 AM

20s? sweet, finally my Mini-t will get the power it deserves.

myndseye 03.02.2009 06:21 AM

Hey Patrick, I still humbly put in my request for more current handling instead of more voltage handling. An indestructable esc at 6s is all most rc'ers will ever need. 350A continuous would make it perfect.

SV6000 03.03.2009 07:58 AM

Geez a 12s monster 2215 NEU for MAXX and REVO anyone??:whistle:

TexasSP 03.03.2009 11:25 AM

Quote:

Originally Posted by myndseye (Post 266236)
Hey Patrick, I still humbly put in my request for more current handling instead of more voltage handling. An indestructable esc at 6s is all most rc'ers will ever need. 350A continuous would make it perfect.

Talk about inefficient and lots of heat. Why try and produce 7700 watts with 6s? Higher voltage at lower amps producing the same wattage is much more efficient and be much more reliable.

The MMM specs are just fine for 6s.

myndseye 03.03.2009 04:12 PM

Quote:

Originally Posted by TexasSP (Post 266518)
Talk about inefficient and lots of heat. Why try and produce 7700 watts with 6s? Higher voltage at lower amps producing the same wattage is much more efficient and be much more reliable.

The MMM specs are just fine for 6s.


I don't want to produce any more heat, and I also don't want battery packs all over my cars. I want a controller that could care less about burst currents, spikes, shorts, drivetrain bindings, and overgearing. A controller that can surpass a batterys ability to harm it under extreme operating conditions, would be way better than high-s for all my applications. I have absolutely no desire to make a vehicle for me to ride on, but 5 or 6s 10,000 would be a good reason to put two packs on something. I have given plenty of controllers "the business" and thermaled them, when the battery and motor were fine. My MGM can take it with no problem, where the Monster overheats. If Castle were to make a 275+ continuous controller thats more affordable, everyone who has had to drop a couple of teeth to make their setup happy, will thank them.

Dagger Thrasher 03.03.2009 06:39 PM

Quote:

Originally Posted by myndseye (Post 266581)
I don't want to produce any more heat, and I also don't want battery packs all over my cars. I want a controller that could care less about burst currents, spikes, shorts, drivetrain bindings, and overgearing. A controller that can surpass a batterys ability to harm it under extreme operating conditions, would be way better than high-s for all my applications. I have absolutely no desire to make a vehicle for me to ride on, but 5 or 6s 10,000 would be a good reason to put two packs on something. I have given plenty of controllers "the business" and thermaled them, when the battery and motor were fine. My MGM can take it with no problem, where the Monster overheats. If Castle were to make a 275+ continuous controller thats more affordable, everyone who has had to drop a couple of teeth to make their setup happy, will thank them.

If you're thermalling an MMM, you're doing something seriously wrong. I don't think there's a single other person on this board who's actually managed to thermal one yet; current-wise, they can handle *plenty* enough. And even if it could handle yet higher currents, this wouldn't have any effect on its ability to withstand high ripple voltages. It's an independent issue.

Besides...a true 275A controller like you're talking about would be simply too big to be practical in 1/8th scale. And if you used such a controller in larger models, the current throughput of the whole system due to the 6S limitation would render the whole system insanely inefficient and unreliable.

Unsullied_Spy 03.03.2009 06:42 PM

Quote:

Originally Posted by Dagger Thrasher (Post 266636)
With all due respect, have you run an MMM? I don't think there's a single person on this board who's actually managed to even thermal one yet; current-wise, they can handle *plenty* enough. And even if it could handle yet higher currents, this wouldn't have any effect on its ability to withstand high ripple voltages. It's an independent issue.

Besides...a true 275A controller like you're talking about would be simply too big to be practical in 1/8th scale. And if you used such a controller in larger models, the current throughput of the whole system due to the 6S limitation would render the whole system insanely inefficient and unreliable.

I agree. They're rated to 120A continuous but the components are good for 200ish. The only way to thermal one is if the fan breaks or if you are really pushing it too far. IMO 120-150 amps is all you need in an ESC as long as it's rated accurately, anything more than that and you should gear down or volt up.

lutach 03.03.2009 07:39 PM

People should treat what ever cont. current rating as the burst cont. meaning every time you grab full throttle your motor should ask for 120A or less. This is how things runs cool and also not grabbing full throttle and hard breaking helps a lot too. I think it's up to the manufacturers to make people aware of this so they don't get things confused. I would love to see a ESC, battery, wires, connectors and most important the copper traces found in the ESC handle 120A continuous. This is why the ones that claim 500A+ gets bitten in the you know what all the time. Does anyone have the KO BL esc? I would love to see what alien technology allows it to deliver 780A cont. and 3000A+ burst. Good thing Castle keeps it real A+++. Sorry for bringing other brands in here Castle (Patrick).

Dagger Thrasher 03.03.2009 08:16 PM

I don't know about that, Lutach. If people treated true continuous ratings as burst, then they wouldn't be using half the ESC's potential. IMO that's a bit too conservative to be sensible, and besides..it depends on what length of time you define to be a burst. Just my opinion though, there.

Quote:

I would love to see a ESC, battery, wires, connectors and most important the copper traces found in the ESC handle 120A continuous.
That's just it; the MMM can handle a solid, sustained 120A for any given length of time from what I gather. Patrick himself has mentioned their 120A bench-test they've done on MMMs; the whole shebang handles it.
Agreed on the KO ESC's ratings...they made me laugh when I read them. Obviously they're just FET-specs, but it's just ridiculous.

lincpimp 03.03.2009 08:46 PM

I have to side with Lutach here. You need a big wire to handle 120amps at 20v without it getting hot... And by handle, I mean continuously, for minutes...

Dagger Thrasher 03.03.2009 08:53 PM

Well, maybe I read wrong at some point, though I thought that's what he stated (along with 120A being roughly the max current that can be expected from 10AWG); literally, for minutes. Not sure about the voltage. Tekin did the the same thing with the RX8 at 130A, as the Prez mentions it in that RX8 thread in their forum. Not that it really matters I guess. The Monster can handle plenty of current for most of us.:yes:

lincpimp 03.03.2009 09:04 PM

Quote:

Originally Posted by Dagger Thrasher (Post 266686)
Well, maybe I read wrong at some point, though I thought that's what he stated (along with 120A being roughly the max current that can be expected from 10AWG); literally, for minutes. Not sure about the voltage. Tekin did the the same thing with the RX8 at 130A, as the Prez mentions it in that RX8 thread in their forum. Not that it really matters I guess. The Monster can handle plenty of current for most of us.:yes:

That is true. I have logged quite a few 4s runs, and they peak at 125+, but average is around 40amps. The MMM is a great esc, that is for sure.

sikeston34m 03.03.2009 09:21 PM

Quote:

Originally Posted by lincpimp (Post 266690)
That is true. I have logged quite a few 4s runs, and they peak at 125+, but average is around 40amps. The MMM is a great esc, that is for sure.

+1

I have quite a few runs on my MMM V2! I couldn't be happier with it.

It has been ran mainly on 4S, but has seen some 5S and 6S runs as well.

For Monster Truck use, I don't know if it can get any better than this.

On 6S, I have seen the fan cycle on and off. On 4S, I wouldn't know if the fan even works if it didn't come on when I first switch on the ESC.

My current setup may be considered mild to most. It's an E Revo with a Medusa 36-60-2000kv gearing 18/52 Mod 1. Tops out right at 40mph on 4S, but will almost hit 60mph on 6S and has torque out the wazoo.

Patrick, when can I buy an 8S Monster from you? :yes:

lutach 03.03.2009 09:36 PM

Quote:

Originally Posted by Dagger Thrasher (Post 266671)
I don't know about that, Lutach. If people treated true continuous ratings as burst, then they wouldn't be using half the ESC's potential. IMO that's a bit too conservative to be sensible, and besides..it depends on what length of time you define to be a burst. Just my opinion though, there.



That's just it; the MMM can handle a solid, sustained 120A for any given length of time from what I gather. Patrick himself has mentioned their 120A bench-test they've done on MMMs; the whole shebang handles it.
Agreed on the KO ESC's ratings...they made me laugh when I read them. Obviously they're just FET-specs, but it's just ridiculous.

Try this test and gives us feedback: Get a airplane motor mount, hook a nice big motor along with a nice big prop, try to achieve 120A and keep it at 120A and see what happens. Just keep in mind some of the burst our vehicle see might be upwards in the 200A for a short burst on hard start ups. After the vehicle starts rolling that number takes a nice dive like the "Stock" market lol.

myndseye 03.04.2009 02:27 AM

Quote:

Originally Posted by Dagger Thrasher (Post 266636)
If you're thermalling an MMM, you're doing something seriously wrong. I don't think there's a single other person on this board who's actually managed to thermal one yet; current-wise, they can handle *plenty* enough. And even if it could handle yet higher currents, this wouldn't have any effect on its ability to withstand high ripple voltages. It's an independent issue.

Besides...a true 275A controller like you're talking about would be simply too big to be practical in 1/8th scale. And if you used such a controller in larger models, the current throughput of the whole system due to the 6S limitation would render the whole system insanely inefficient and unreliable.

If I'm thermaling a Monster in my RC circle, I am doing something seriously right. The MGM doesn't have any problems with the setup, why does the Monster? No one else has thermaled one because you guys don't push the limits like we do. From speed-run cars, to ballistic 5th scale hill climbers, I have 5 RC's currently active, only one tenth scale car, and only one that hasn't broken 80mph. Weight is not our friend here. Startup current demands, braking demands, and drivetrain jolts during off-road high speed baja style races, tend to heat up controllers. When ten minute races with high paces mix, the lightest fastest machine usually takes it. Just because you don't have an application for this type setup, don't assume they aren't out there. I promise you that I can find a place for a bulletproof controller twice the size of the Monster on my chassis before I can find a place for another 5000mah pack. If my Monster could last a few more minutes in the enduros and make a few more passes in my Infernos at over 100mph before thermaling, I would only have those in my cars.

P.S. - I know about Patrick's extreme testing of the Monster, that you guys referred to, it was one of my cars that he was using.

Dagger Thrasher 03.04.2009 04:42 AM

Quote:

Originally Posted by lutach (Post 266702)
Try this test and gives us feedback: Get a airplane motor mount, hook a nice big motor along with a nice big prop, try to achieve 120A and keep it at 120A and see what happens. Just keep in mind some of the burst our vehicle see might be upwards in the 200A for a short burst on hard start ups. After the vehicle starts rolling that number takes a nice dive like the "Stock" market lol.

I'm not suggesting that we use setups that have a consistent current pull that's almost at the limit of the controller; that would obviously be foolish, and asking for trouble. I thought you were referring to keeping *any* current bursts (including startup) below 120A.

Mynd's eye, that's fair enough, and it sounds like you really push your kit hard. If you don't mind my asking, what setup do you run on the Monster? And what MGM do you use? Castle aren't planning (that I'm aware of) any significantly higher-current controllers because very few people would need that capacity; instead, they're going higher voltage of people that need more gumption. A higher-voltage system in many of your apps would be much more efficient at even higher power levels, even if your MGM can take it. But then again, if you're happy with your MGM, just use that. Or, retrofit extra cooling to the MMM. :yes:

myndseye 03.04.2009 11:07 AM

Right now I have my Monsters on my buggy, truggy, and IGT conversions. The off-roaders participate in our enduro style races, and the IGT is an ultimate have fun car (great paint scheme, lights everywhere, aluminum wheels, and I paln on putting in the RangeVideo FBV (fly by video) system in so I can DBV. All three of these are similarly set up. Various Neu 1512's running between 3 and 5s but really setup for 4s. The hottest setup I have on a Monster is the IGT's with high gearing (Mike's 20T pinion) and a 1512 1D. Way past what any of you guys would ever consider, and arguably pushing the limits on paper. But these motor and voltage combinations never thermal, and it is mostly the batteries that are the worse for wear. Runtime is just ok, efficiency is lower, but the performance is unchartable. This level of performance is common-place within our group.
The setups that the Monster can't handle are obviously more demanding. My ultimate speed IGT2 has a Neu 1527 .5y with 30T pinion on 6s, run by the MGM 28025 and my MCD Race Runner has a 1527 1D run by the same MGM and the same 6 cell pack. The Monsters cannot handle the latter two, but only miss by minutes because of thermaling.

TexasSP 03.04.2009 12:56 PM

Realistically it looks like you are comparing apples to oranges in this deal. The MGM 28025 is over twice the cost of the MMM and designed with a different purpose.

I had the MGM 16024 and the MMM at the same time and running the same setup, same truck, same batteries, I could never get the MGM through a run without thermalling. The MMM has never thermalled on me and have have pushes it much harder. Keep in mind I had the latest updates from MGM as well and could update via the web. The MGM start up routines were lacking as well, basically the firmware is nowwhere near what the MMM has in it.

I am not saying MGM is junk, but pound for pound and dollar for dollar, the MMM beats it in everyway comparing the same level controllers, and the MMM is still 100 cheaper.

bdebde 03.04.2009 04:09 PM

Quote:

Originally Posted by TexasSP (Post 266830)
Realistically it looks like you are comparing apples to oranges in this deal. The MGM 28025 is over twice the cost of the MMM and designed with a different purpose.

I had the MGM 16024 and the MMM at the same time and running the same setup, same truck, same batteries, I could never get the MGM through a run without thermalling. The MMM has never thermalled on me and have have pushes it much harder. Keep in mind I had the latest updates from MGM as well and could update via the web. The MGM start up routines were lacking as well, basically the firmware is nowwhere near what the MMM has in it.

I am not saying MGM is junk, but pound for pound and dollar for dollar, the MMM beats it in everyway comparing the same level controllers, and the MMM is still 100 cheaper.

The 16024 was their last generation esc, the 28025 is new generation, which may also make a difference (plus higher current handling). I run a 16024 in my Muggy, and have also tried a MMM in it as well, and I will say that the MMM is a step above that particular MGM model.

myndseye 03.04.2009 05:29 PM

I whole heartedly agree with you both. I too have owned and burned previous generation MGMs to the ground. I've owned three 22418-3's, and none of them lasted long. This was pre Monster, so there was no other choice back then. These newer ones are far more reliable, but still have the quirks that make them fall out of favor with the masses, price included. This is the reason I am here making my request. It would be the best thing ever to get the programability, smoothness, and support service of a Castle product, wrapped around the brute strength of an MGM. The great Castle price point, wouldn't be bad either.

TexasSP 03.05.2009 10:02 AM

I see your point now and think we all pretty much are on the same page then.

I also do not like having the send my controller back to the Czechoslovakia for repair. fine if you are in Europe, not so if you are in the US.

drkdgglr 04.01.2009 04:10 AM

Is there an eta on the 8s mmm?

Sammus 04.01.2009 04:23 AM

nope

SV6000 04.01.2009 07:13 AM

Hey myndseye have you had any dramas with MGM`s i was having lots of trouble with mine


All times are GMT -4. The time now is 07:24 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.