Thanks for your response. The reason I'm asking this is because I want to make the Motor turn forever in clockwise direction, while carrying a sensor. Since the sensor must constantly communicate with the NXT brick, the wire connected these two will be twisted badly ....
However, I've seen a guy managed to do so without any issue.http://www.youtube.com/watch?v=eWxwGUYFM5M
From the video, the LEDs must receive commands from the brick while constantly turning 360 degree. Can you figure out how did he managed .... Btw, that's the Magic Wand made by Philipe Hurbain