So im building my first trex.

The build is going ok so far, but i have a few concerns and thought i would ask some of the people here who no doubt have already dealt with these issues. Any help is appreciated.


1. I was looking at the diagram here [link]http://www.trextuning.com/electrical-setup.php[/link] and moused over the ESC, it says i need a seperate BEC if using >3C or a digital servo. My tail servo is digital (s9650), my esc is a CC35.
So do i need a seperate BEC, will my digital servo burn out my esc?

2. I have the dx6 parkflyer system, i had everything setup and working well, however i rebound the tx/rx to set my own failsafe and the pitch and roll axis now seem reversed on the heli. Left stick moves the swash right, foward stick moves back. Seems a bit odd, I imagine i can just reverse all the servo directions in the TX but thought it was wierd.

you will be fine without it. most people are running their T-REX without a BEC and are running a 9650. make sure your using a 401 gyro. they are the most widely used gyro on the rex and it has a digital servo setting which is esential for using the 9650.

try it. if all the servos are moving in the wrong direction then yes you should reverse and recenter all the servos. that should fix it.

thanks for the help, i also figured out my tx problem, so ill share incase anyone else has this problem.

I think the servos reversed when i turned ccpm on in my dx6 tx.

So i ended up having to reverse the servos, but then my pitch mixing was going backwards, forcing it down instead of up. to fix that i just set the CP6 setting to the inverse of the existing setting, i changed from +60 to -60. flys great now