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-   -   Maddness (https://www.rc-monster.com/forum/showthread.php?t=2724)

Darren 04.03.2006 02:51 PM

Maddness
 
Hi guys. Just been looking at some amazing brushless motors. Spotted a lehner 3080 (10Kw!!!). Just thought to myself, should i dare putting one in an E-Maxx?

If i did i'd be looking at about 60v lipos, speedwise id be seeing around what? 70? 80?

All just ideas...

Darren

stampy 04.03.2006 03:58 PM

i think a 3080 is totally out of the question in terms of size an power. 1 the sheer size of a 3080 is huge i doubt you could make a a mount that would work. 2 the shaft is 10mm you would have to make a pinion for it cause ive never seen a 10mm mod1 pinion. as for 60volts of lipo thats alot of batteries even with lipo this thing will weight a ton. i think if your after 70 mph a 2280 on prolly 29.6 volts (4 7.4 lipo packs) should get you there. sorry to rain on your idea :002:

maxxdude1234 04.03.2006 05:01 PM

Its quite possible that a couple of 3080 motors could be used in an electric city car. Two of these motors would give about 27hp, would be plenty to move a little inner city car and would keep all the green activists happy :).

BrianG 04.03.2006 05:03 PM

Wow, those 3080's are BIG! 120mm x 60mmD?!? Must be something for robot wars, or a R/C life-sized buggy.

What kind of controller would you use?? Either way, it'll take an obscene amount of voltage and/or current!

HotnCold 04.03.2006 05:26 PM

But boy what would it look like. " You run brushless..... Now This is brushless".. LOL

Superemaxx89 04.03.2006 05:43 PM

YOU CAN DO IT! (Rob schnider voice)

3080 10t
16s4p lipo
Kontronicks power jazz

perfect!

HotnCold 04.03.2006 07:35 PM

The Waterboy was friggin hilarious. Awesome movie...

coolhandcountry 04.03.2006 07:53 PM

I was thinking of getting a 3060 and mounting it to a chassis with direct drive the the rear diff. I think it would have enough power to pull it and would be awesom fast. Never tried yet though. :027:

Darren 04.04.2006 06:08 AM

Seems like a bad idea in some ways and a good idea in other ways.

I'll keep thinking about it.

Stampy - Yes, gears would have to be custom made. Motor mount idea would clam round the motor case at the rear and support it there, so it doesnt move.

I don't know the amp draw, but i'll look around.

jagboy 04.04.2006 12:34 PM

I was looking at using two 3080s to power an electric kart, but I couldn't find an ESC that could handle the voltage and amperage. I checked out the Power Jazz, but it can only handle 120 amps. If you used all 120 continuously and 63 volts, you could only produce 7560 watts. You need a 63 volt controller that can handle 160 amps continuous to produce 10kw. Schulze has two that can handle the amps (Future 32.170 and 40.160), but they fall short on voltage. I'm sure that there is an industrial company that has one, but I dont know of any controller capable of handling it. I'm sure there is one out there or else Lehner couldn't sell any of their 30 series motors. The car would have to be built around the motor. I dont think any current production car would be able to take 10kw even with upgrades.... maybe the Baja 5B. That would be incredible! Anyway... sorry to be the bearer of bad news, but if you find a controller please tell me. I'm always looking for stuff like that. If I find one, I'll tell you.


JB

BrianG 04.04.2006 01:35 PM

It might be easier to simply get a small low current/voltage ESC and then add as many output FETs as needed to handle the current. You'd basically just be using the input decoder circuitry (from the transmitter) and the "programming" from it. The voltage capacity is limited by the choice of FETs. Yeah, it would be clunky and rather large - not like the nice neat little ESC we are used to...

captain harlock 04.04.2006 02:05 PM

What are you guys thinking?!! You've been stripping gears and spurs with the 22 series and yet, you're thinking of mounting an almost 2kilo motor in your pooor truck?!! I tell the truth, it wont be any joy, at all. Use a 2280 if you want extreme power. A 3060 or 3080 are beyond rediculous.

jagboy 04.04.2006 02:06 PM

Hmmm.... could you elaborate a little. I hate messing w/ electronics (especially such crucial and intricate ones), but this intrigues me.


JB

Darren 04.04.2006 03:04 PM

Hmmm I'll look at controllers. There was a boat that had two 3080's in it, so there must be a controller out there to handle it.

maxxdude1234 04.04.2006 04:01 PM

Boats are a lot easier on controllers than cars are. Still I reckon a top end schulze or micro controller would be able to handle it in most cars.


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