2 Motors, One Esc?

[volksrod68]

I Have a Clod and a Bullhead, and i want to upgrade from the standard msc without spending too much.

I have a few Mtroniks waterproof esc's lying about, would i be able to hook 2 motors up to an esc without it frying?

I wouldn't be running daft motors, probably 20t silver cans at most, and make up a Y-lead to hook them together to fit them onto the standard single connectors on the esc leads?

Thanks,

Joe

[Badboy]

Hi Joe!

How about spor tuned Black 540 with this:

http://www.tamiyausa.com/product/item.php?product-id=45037

I dont know handles...

Badboy

[TWINSET]

Joe

what are you gonna use it for?

For crawling, you want parallel wiring - this means 2 x 20t motors will need the same supply from the ESC as one 10t motor - so you need a ESC capable of 10t or less

If you're just blatting around, you can use series wiring, and then 2 x 20 motors will only need a ESC capable of 20t or less.

The disadvantage to series wiring a Clod is that the axle with the least load is the one the power's diverted too - same as a diff on a car - If the front axle is up in the air, the power goes into spinning the front wheels and the rears will just sit there.

With parallel wiring, both motors get equal feed all the time, which is why it's good for crawling.

[Brooklyn Nights]

Hi

I did this with my Clod! I used one esc and 2 standard silver cans. Now as I understood it you have to take half what the motors are turn wise for the esc. So with 2x20 turn motors you will need an esc that is a 10 turn or less because your putting twice the strain on the esc and wanting it to power 2 motors.

Cheers

[VagabondStarJXF]

I used an Mtroniks RV Max on my TA03 Dual Motor project. It handles the stock motors just fine and you can solder the wiring as you need it. I haven't tried it with any hotter motors yet.

[volksrod68]

Well i plugged the battery in to see what the MSC was like. Booom! A very electrical spark sound and then a massive puff of smoke! So out came the MSC and in went a 15 turn Mtroniks ESC.

I wired the motors together to plug into the single connectors on the esc wires, and like has been said, the front wheels were getting most of the power, the truck would spin the front wheels only on the tiled floor.

[Brooklyn Nights]

Well i plugged the battery in to see what the MSC was like. Booom! A very electrical spark sound and then a massive puff of smoke! So out came the MSC and in went a 15 turn Mtroniks ESC.

I wired the motors together to plug into the single connectors on the esc wires, and like has been said, the front wheels were getting most of the power, the truck would spin the front wheels only on the tiled floor.

I'd say your pushing your luck using a 15 turn esc if your running 2x20 turn motors! I dont expect it to last long before the bang!

Cheers

Rich

[TWINSET]

I'd say your pushing your luck using a 15 turn esc if your running 2x20 turn motors! I dont expect it to last long before the bang!

Cheers

Rich

It depends how the motors are wired - if they're in series then the whole circuit acts like one motor with a centre diff

If you're wiring both motor wires to one connector, then I think that's a parallel setup, in which case a 15t ESC probably won't last long (especially an MTroniks genie releaser).

Not sure why only one axle was spinning though, they should both spin all the time unless one of the motors stalls (another fun, Clod-based foible)

[volksrod68]

Im running twin 540's, not 20t motors.

Will be checking everything out this week, how should i wire the motors to get the best out of the truck?

Don't say series or parallel as that talk doesnt register with me!!

It needs explaining to me :-)

[TWINSET]

Im running twin 540's, not 20t motors.

Will be checking everything out this week, how should i wire the motors to get the best out of the truck?

Don't say series or parallel as that talk doesnt register with me!!

It needs explaining to me :-)

Ok, if you're crawling it or are likely to want permanent 4x4, you'll need parallel - equal drive, all the time

For general bashing, series puts less demand on the ESC, but you got that diff issue

For parallel wiring;

Take two wires long enough to go motor to motor

solder one wire on + tab on front motor and - tab on rear motor

solder another wire on - tab on front motor to + tab on rear motor

The reason for the +/- crossover is that the rear motor runs backwards.

Once you've done this, you need to 'splice' the speedo wires into the wiring.

The cheap, simple way is a couple of auto splicers;

The yellow and green wires coming from top right are from the ESC, the blue and yellow are the +/- crossover wires

The positive wire from your ESC goes to the positive wire on the front motor.

If you mess up, turn the body round

This is the dead easiest way

Slightly more pro;

same thing, with soldered splices - yellow and green from ESC, red and black +/- crossover

There's tons of opinions on where this splice should occur along the length of the crossover, none are conclusive - go with what's tidy.

For series, imagine the ESC and motors forming a circular circuit

+ wire from ESC goes to + on first motor

- from first motor goes to - on second

+ on second motor to - into ESC (the +/- crossover again for reversed rear motor)

Think of it as a necklace with the ESC as the clasp and two 540s just above your nips and you'll get the idea.

Personally, I'd go parallel, but remember to halve the motor turn to get an appropriate ESC (2 x 27t = 13t ESC)

Series wiring is more suitable if you've two motors running the same spur, like in a TXT/EMaxx

Apparently you get more torque and the diff thing isn't an issue

Here you can see the bridge wire, imagine the other wire on each motor going to the wires on the ESC to form the necklace

[backtomyroots]

Here are some tech tips:

http://www.tcphotos.com/showroom_model.asp...ecid=936&t=

Or:

[TWINSET]

Here are some tech tips:

http://www.tcphotos.com/showroom_model.asp...ecid=936&t=

Hey Christopher

The science in those articles is fine, but the wiring diagram for the motor is no use on Clods, as they have the motors wired +/+ which'd mean the rear axle would go backwards

For a TXT, Jugg or EMaxx, the diagram is ok.

[backtomyroots]

Hey Christopher

The science in those articles is fine, but the wiring diagram for the motor is no use on Clods, as they have the motors wired +/+ which'd mean the rear axle would go backwards

For a TXT, Jugg or EMaxx, the diagram is ok.

Well, I need to look more closely at these articles ! Thanks Andy !

[TWINSET]

Well, I need to look more closely at these articles ! Thanks Andy !

No worries - I been firing that link off to people for ages now and only recently realised meself, certainly only in the last couple of months.

[markbt73]

A 15t limit ESC will do fine with two silver-can 540s in parallel - I did it for years in a Clod, and I'm still using the exact same ESC (an original Novak Rooster) in a Wild Dagger. And definitely wire them in parallel. Run time isn't much different, but the power output sure is.

[tonysmini]

Bump, for Bromvw and Kev, this is where I got my information about wiring a single ESC for two motors, depending in the vehicle type. Remember one motor is wired backwards on a Clod or a Dagger, ir they will push/pull against each other. A dual TA03 both wire the same way.

Or you can fit Titan 550 21t motors, they do a reverse wired one perfect for Clods.

Hope it helps.