Hi, i have a question i conect 2 brushless motors to a speed control, both run nice but the second gets too hot, why is that??, the thing is that i need that se 3 brusheless motors run at the same speed, can i conect all the speed controls to a same chanel
can i do that???
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You can however wire up multiple ESCs to the same radio channel, but don't expect them to produce exactly the same amount of power. However, going from your previous posts, I believe there's something about your understanding of how a tricopter flies that needs resolving.
A tricopter does not produce the same amount at each of its motors in a fixed manner. It just can't fly like that. It would almost instantly flip and fly out of control. Instead, the flight controller (you do need one, you cannot get around that) adjusts the amount of power going to each motor to stabilize the tricopter and permit it to ascend in a level fashion. In addition, a servo is used to control the yaw (left/right lateral movement), which again needs to be constantly adjusted by the flight controller.
The very fact that you need all three motors to be running at different thrust levels all the time means you need three ESCs. You can't get around that by wiring, sorry.
You may connect 2 ESCs to one RC channel using a Y-cable.
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Do NOT connect 2 motors to one ESC. The ESC needs feedback from the motor to know the rotor position in order to know when and what phase to drive next. With 2 motors providing feedback, the controller has no idea of the shaft position and very likely will destroy a motor. Or both.