Pixhawk Hexacopter Flipping on Takeoff

[Jim Schultz]

So I finally have my Tarot 680 Pro assembled using a Pixhawk. The problem is whenever I take off, it flips. I tried re-calibrating the gyros but that did nothing. I'm not really sure what to do... Here is a video of it:

https://vid.me/g5hb

 

[k5beason]

Use Mission Planner and perform a motor test without props. Make sure the correct motor is spinning and in the correct direction. http://ardupilot.com/downloads/?did=82 You'll find the motor test under Initial Setup -> Optional Hardware.

 

[Jim Schultz]

I don't have windows so I have to use APM planner.... I think the problem might be weight distribution. The battery is on the back half of the copter facing sideways in proportion to the copter. Regardless of the angle I take off from, the copter always flips towards the the back half(where the battery is). Could this be the problem?

 

[JoeBob]

Did you get the motors sequences right?

Naza starts at 1 o'clock and goes around counter clockwise.
Pixhawk starts at 3:00, goes to 9:00, 11:00, 5:00, 1:00, and 7:00.
http://copter.ardupilot.com/wiki/connecting-the-escs-and-motors/

 

[Jim Schultz]

So the ESC that is plugged into the first slot in the Pixhawk should be the motor at 3:00? I do have it starting at 1:00 so that might be my problem...

 

[Old Man]

Could be.... Balance matters quite a lot too. Try to get everything as close as possible to being in balance. The copter will generally quickly lean opposite the weight imbalance during a T/O, often with poor results, especially if you try to "baby" the throttle during the lift off attempt.