can i run two or three BL motors on one esc ?

[Lowgear]

Just like budhatrain said. The only way to run dual brushless motors is with two identical systems connected together. Maybe in the future a company will make a single case that contains two separate esc's connected internally for setups that require dual brushless motors.

[Brandon G]

Mark Westerfield at RCHR offered a suggestion for running BL in a Clod. If you use ONLY a non sensored ESC, with 2 17.5 motors (low amp draw), wire it normally for the regular rotation motor, and for the reverse rotation motor swap the 2 outside motor wires, it should work. My only question is timing. I am assuming you would not want any mechanical advance dialed in the motor can. I would think a Mamba monster would be able to handle it since it is a beast and does not use sensors.


Anybody want to donate a couple of motors and an ESC to find out????

[treehugger]

i had the same response in my LHS its just like you said risking my mamba seems to much risk i will probably get a couple of hoby wing esc to go with the out runner motors

Paul

[Brandon G]

I honestly think that if you stuck with a higher wind motor the Mamba Monster ESC should have no problems handling it. I mean, these things do incredible things with some monster motors in 1/8th scale racing chassis, I can't see it not holding up. And since the Clod (in the particular case I'm talking about) doesn't interconnect the front and rear drive line, it may work??? Maybe some of the Clodtalk gods could help us out....

[jwscab]

I don't believe you can connect 2 brushless motors in parallel. I think the control circuitry uses some built in voltage/current measurement to drive the stators smoothly. With 2 motors in parallel, this gets effectively messed up, and one might work while the other motor cogs.

your best bet is the cheaper esc's and run 2 in parallel......

[scr8p]

from rcmt:

In a brushed motor the timing is mechanical, the armature coils energize on/off at a certain position of rotation and this is mechanical. This is why you can run dual brushed motors on a brushed ESC. The ESC is just controlling the voltage to the motors, not controlling the timing of the coils being energized on/off.

In a brushless system, the timing of the coils are energized by the ESC. The ESC needs to know where the rotor is positioned so it knows which coils to energize next for proper rotation. The back EMF is detected by the ESC and it uses this feedback to properly engergize the coils in the proper sequence. If you have 2 BL motors on one ESC, the ESC won't correctly know which position either rotor is in. You risk burning up the motor, ESC or both. This is why you must run one ESC with one BL motor.