Brushless Motor Forum v2.0

[RCmaniac324]

A lehner 5300/warrior 7018 setup, i mean. with 6 cells and gearing up, im gonna have my truck hittin 40+, but I will make another 2-3 cell pack i can wire inline when i feel like insane speeds(all the better to completely obliterate my nitro friends with , not that 6 cells alwont already be enough, the 8-9 cell setup will just be for uttery humiliating them all and racing REAL cars on the local streets )

[k_sw31]

I am getting tired of waiting for my controller.......

I'm getting tired of building my truck to put the BL stuff in

[gixxer]

Anybody tried the C40 or C50 series on the hacker setup. Any thoughts?

[RadicalRustler]

Is there any controller that i could use two motors (4200 or if possible 5300) that is cheaper than two warriors with reciever packs? i think hacker competition would bu thats 300 bucks - 111 amps. any others that might make it?

[k_sw31]

It's just plain not smart to run two BL's on one controller. THe main thing is no bl controllers were ment (or designed to) handle two motors. IT would be way smarter to run two different setups with a y-harness, people do it in their e-maxx's.

Evil Pilotfish!!

[k_sw31]

PUffer fish bombs!!!!!!!

[RadicalRustler]

Whats a y harness

[RCmaniac324]

A y-harness is basically a splitter that allows you to use two devices in synch on one chanel of your radio. for example, if you ran the splitter to two controllers like you are thinking of doin, it would send the exact same signal to both controllers, therefore having equal throttle on each motor. This way, one motor wont be acting as a slave to the other, as they are both achieving pretty close to the same RPM and torque.

[RadicalRustler]

Where would i be able to get this y harness? and thank's for the idea.

[RCmaniac324]

You should be able to easily obtain one at your LHS or towerhobbies.com for a few bucks.

[RCmaniac324]

For those BL speed freaks out there: i just thought of a way to get insane speed with a small BL motor.

It starts with a lehner 10 series motor. I noticed that they are said to produce 300-450W of torque(over twice that of a standard brushed motor) and is rated for upto a heart-stoping 100,000RPM!!!!!!!! So, i was thinking, you take one of these motors, make a motor adapter plate for it (the mounting holes are not far enough apart to be accepted otherwise), and throw it into your truck with enough cells to bring it upto 90,000+ RPMs!!!!!!!!!! (dont want to run it right upto the limit, it may throw a mag, then it will b screwed up)

The small size of the motor and controller (small amp draw makes it possible to use their PICO controllers, which weigh next to nothing) would save weight overall and help compensate for the radio and batteries. the lessened weight would only add to the speed and acceleration

The speeds you could attain would be just plain insane (if your tranny could handle them. ), but you would sacrifice torque to do it (most BLs can achieve 700+W, while this one can only do at most 450W), but with over twice the power of a good brushed motor, it is still a very potent and powerful motor.

What do you guys think? Would it work?

Maybe on a 12th scale pan car

Originally posted by k_sw31
PUffer fish bombs!!!!!!!

That might hurt a bit

[k_sw31]

Originally posted by RCmaniac324
For those BL speed freaks out there: i just thought of a way to get insane speed with a small BL motor.

It starts with a lehner 10 series motor. I noticed that they are said to produce 300-450W of torque(over twice that of a standard brushed motor) and is rated for upto a heart-stoping 100,000RPM!!!!!!!! So, i was thinking, you take one of these motors, make a motor adapter plate for it (the mounting holes are not far enough apart to be accepted otherwise), and throw it into your truck with enough cells to bring it upto 90,000+ RPMs!!!!!!!!!! (dont want to run it right upto the limit, it may throw a mag, then it will b screwed up)

The small size of the motor and controller (small amp draw makes it possible to use their PICO controllers, which weigh next to nothing) would save weight overall and help compensate for the radio and batteries. the lessened weight would only add to the speed and acceleration

The speeds you could attain would be just plain insane (if your tranny could handle them. ), but you would sacrifice torque to do it (most BLs can achieve 700+W, while this one can only do at most 450W), but with over twice the power of a good brushed motor, it is still a very potent and powerful motor.

What do you guys think? Would it work?

I dotn think it would work, well, at least not very well. THe point is, 10 series motors wern't ment to power that much weight around, in other words, they wern't designed for the much stress. THat could result in a fried controller (ugh) or you could throw a magnet (ACK!)


I guess when you think up stuff like that, you just have to think of what the products were designed for in the first place, and whether you're testing the limits or not. The 10 series, i think, were designed to take on low weight applications, such as small planes or helicopters, OR A MICRO RS4!!!!! (thats what I've always wanted to try, throwing a BL in a micro )


BUt on the other hand, if that were to work, that would be awesome !! Hardly any weight, a lot moer torque than stock moters, and the speed of a dragster

[Mr. Constructor]

Hello there !

I´m just using a BL System in an 10th Scale Car, this is a similar one to the serpent 10th !!
I´m just using it for nearly a year or more.
It was equipped with a ESC from GM Racing (the 2. Generation is just in our stores) and a 1520 7T from Lehner, this combination
runs really great with speeds up to 100 km/h in 1st gear !!
(no joking about that!!)
This combination deliveres very good responce on any finger tip !!
(I´ve checked out the Aveox, schulze, Jeti,Hacker, Kontronik and this GM version wich is the same from Kontronik, they´re building it for GM !
And at least the Kontronik/GM and the schulze are very excellent
but the schulzes are very high priced here in germany, if you wanna have a V/R and unlimited version (wich handles up to 3 BL`s) you just have to pay anything from 500 to 600 Dollars for it !!
the GM is OK in pricing, costs round about 200 Dollar, and is going up to a great 70A Cont. (really, it takes that high!)
this little 1520 is very small, yet it has the power to handle the 1.6 Kg heavy Car easy.
The Jeti ESC`s are OK, but they are not so fine in response and you could not get them with electr. brakes !!
(for a big boat, no problem , but in a car you have to mount a brake, and the servos too, wich is extra weight)

The esc´s from schulze and Kontronik/GM are with proportional brakes, the Hacker esc´s are without too (they´re produced by Jeti)

So far I could not tested any TRIOX (www.TRIOX.de)
Motor/ESWC Combi, and the novak and orion combos are not available to all people

the best solution is a GM(Kontronik) ESc with a Kontronik (some really get up to 55000 rpm at 1500 W !!
or the smaller GM (or lehner) EVO series.
If you just have any Questions on these Motors, contact me at
robert.baumgarten@t-online.de

Maybe I helped you out, take a look at the 10th scale and an 8th scale with 1500 W and 12 cells only weighting 2.6 Kg !!

See ya

Robert

Greetings from good old Hamburg / Germany

[Mr. Constructor]

And here´s the 8th sclae buggy wich I´ve completed and tested
6-8 months ago, and it wascompetitive in any way, the end speed and the acceleration, the running times (up to 12 min with rc 3000 x 12) and the handling and accleration are even better than Nitros, because an e Motor produces much more torque over the RPM and the car weights only 2.6 Kg (w Cells) not an 3.2 to 3.5 Kg.
(the Kontronik BL 500 er series is equal in size and weight to a 540er but with 10-15 times the power !!)
this thing is really better than any E or T maxx, because (I compare them because I own a coustom tuned E Maxx too)
it´s much more agressive and is really fun !!
If there are some interrests on these cars I might produce a small mpg 1 video and can send it to the people who want to get one
(or set it on my Hompage, wich has to be updated also . . . ;-)

Have fun with it, BL´s are the Future at all, they´re better in any case (uuhh, ok one not the price tag for complete electr. is at a high 300 - 600 dollar !!)

Robert

[k_sw31]

Mr. Constructor- IT is nice to see you, those setups are awesome I have a question for you, how does your 1520 7t compare to a basic 4200 or a 5300? I am curious on how they would compare.

[Mr. Constructor]

Nice to meet you too k_sw 31

Just take a closer look on this Website for the Lehner motors:
www.lehner-motoren.de
and then just klick on the buttonownload, then on the :
"Drehzahltabelle" and then on:
"drehzahltabelle als Acrobat datei, you could then download a data sheet on wich several motors are described, the site is in german only, if you want something translated, just ask me for, I will help you out, they really don´t produce motors in mass, you really could ask for some special design or solution with no extra costs !! (The € prices are the same as in Dollar, but the postage and handling will be quite high)

Good luck, see ya again tomorrow, in Germany it is about 24 Hours, I wann get some sleep !!

Robert

[RCmaniac324]

Originally posted by k_sw31
I dotn think it would work, well, at least not very well. THe point is, 10 series motors wern't ment to power that much weight around, in other words, they wern't designed for the much stress. THat could result in a fried controller (ugh) or you could throw a magnet (ACK!)


I guess when you think up stuff like that, you just have to think of what the products were designed for in the first place, and whether you're testing the limits or not. The 10 series, i think, were designed to take on low weight applications, such as small planes or helicopters, OR A MICRO RS4!!!!! (thats what I've always wanted to try, throwing a BL in a micro )


BUt on the other hand, if that were to work, that would be awesome !! Hardly any weight, a lot moer torque than stock moters, and the speed of a dragster

Maybe on a 12th scale pan car

Ok, maybe it may not work well, but it produces more torque than 2 mod motors, so it should be able to drive the weight. What if the controller had the RC car software? Then it would run the motor in such a way that it knows its under heavy load and it should work fine, right?

Even if it couldnt power a truck, it should be able to power a 1/12 pan car. I mean, they weigh next to nothing already, then take away most of the weight of a standard ESC/brushed motor combo. Then take away even more weight since with such a low amp draw, it enables you to use team trinity's 2000mAh "AA"
size batteries, which are much lighter than sub-c size cells (and you'd need at most only 12 of them). Then use a mini-servo(high torque of course) for steering to subract a little more weight. Then use graphite and titanium parts exclusively. So, it has extremely low weight to push from the start, then basically taking away more than half of the electronics weight and some chassis weight makes it go even faster and work even better.

So, with that much speed and torque in an extremely low-weight, 1:12 scale, direct-drive pan-car, with a low ratio such as 2 or 3:1, I wouldnt be surprised if it broke Cliff Lett's speed record of 111MPH [note to self: must try in furure when i get a job and money. ]

[k_sw31]

OK then the deals set. You start buying all the 1/12th scale pan car equip ment, the motors, the cells, the radio system, then when I get get my controller back, we can break the land speed record j/k


It would be interesting to try, but I aint exactly the richest 13 year old in the world Hmmmm, this summer, I can get a job, make some money...

[k_sw31]

The thing I'd be concerned about is even though the motor definatly has the torque, it isn't really ment to handle the load, but, as you say a super light pan car

[Mr. Constructor]

Have you ever seen the BL´s from Jeti??
They´re priced from 80 - 140 Dollar and the esc (if you are using a 2. servo for braking as in Nitro´s ) will be for the highest version (up to 14 cells and 70 a power continously)
about a 110 dollar, I think this is a good value for that low money, because the tech data´s are soo good, that you can also connect it directly to the tranny of a bevel gear type 4 wd at the small bevel gear out going.
That is affordable, much more than thes other state of the art parts, OK theýre much better, but they will cost you 3 times (or more) the money !!

[RadicalRustler]

Hey, Mr. Contructor, where did u find those controllers that can handle 2-3 motors, and how much is the 2 motor one?
Another thing - hacker now has a controller that has brake - car sport that is supposed to handle 70 amps. they have a hacker competition that can handle 111amps and brake - 299 bucks
the warrior can handle 18 cells (with cooling) and also has 70 amps (at least the 7018 does) and its 120 bucks