Connect 2 brushless motor w/ single LiPo battery

Community General Discussions
1

SPIN.jpg

I am trying to connect 2 motors with one battery. It works OK but 2 motor doesn't spin in same speed or start at same time. So, was wondering something wrong in my setting? Should I add something in between to have 2 motor kinda sync together?

In the image I have point out A,B,C,D,E spots. If I need to add anything on those spots? Or should I just using 2 batteries instead of one? Furthermore, if I wanna make quadrotor or six, eight motors and so on. What's the best solution?

Rerally apppreciated if anyone has any ideas to help me on this.

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Hi Hardmouse,It would seem

Hi Hardmouse,

It would seem to me that this is a tolerance issue.  That is either each of your ESC is interpreting the signal slightly differently or there is a slight difference in the motors, or both.  You would probably need to fine tune the signal to each ESC to cater for these differences.

This is also the case in brushed motors.  Most of our robots need a slightly different PWM to each motor of a tracked robot to enable it to drive in a straight line.

 

Pete