Yaw issue with my Paris 4.0?

[bear pants]

Hello all. New here. Recently acquired a delrin kit tricopter. I posted a few videos of me flying in which you can notice my yaw issue. Let me try to explain it.

It's a paris 4.0 board with nunchuck and WMP.

Here is a screen shot of my multiwii settings currently. Yaw is worse since making I value 0.


Any suggestions on anything I may have off please let me know. So the yaw issue.

What happens is if I yaw left and let go of my sticks it will try to turn right and go back to where it normally was. I have to fly with my thumb a bit left on the yaw. It's annoying. I changed the pid settings and it just spins in place basically. How can I get it so When I yaw and let go it will stay straight in that direction? It is the only thing holding me back. Here is a few of my videos where you can see the issue yourself.

http://www.youtube.com/watch?v=yDnIFhFRdIA
1:14 seconds

tougher to notice in this video
http://www.youtube.com/watch?v=bvgBUoqvLyw

But it is rather annoying. Any tips?

[bear pants]

I still tried. In place it tries to spin right. Auto calib does not help.

[noobee]

try adjusting the yaw servo linkage so that the rear motor tilts more to the right (thus yawing the tri more to the left).

for minor adjustments, i think you can use the yaw channel trim.

[bear pants]

try adjusting the yaw servo linkage so that the rear motor tilts more to the right (thus yawing the tri more to the left).

for minor adjustments, i think you can use the yaw channel trim.

Thank you. I will try this method.

[bear pants]

Still having issues. What should my yaw settings be?

[PatrikE]

Do this check.
Hold it in your hand and start engines.
Throttle up a bit.
Rotate it by hand.
Does it fight the rotation then gyro comensates in right direction.
If it doesn't you must change direction in config

Code: Select all

#define YAW_DIRECTION 1 // if you want to reverse the yaw correction direction
//#define YAW_DIRECTION -1

[bear pants]

So if I yaw right it will stop when I let go of the stick. When I yaw left it will always do a full turn to the right before it starts to stop. When I rotate it in the air (don't have a nunchuck just flying acro) the rotor seems to tilt in right direction but doesn't really fight to stay in position. I can rotate all around and it doesn't really fight to stay in place.I don't think I need to change the code. Any other thoughts?


Basically when I am flying I have to hold my rudder left a little bit to fly straight and stop the drift. And I yaw into my turns as well so it's a pain to do that. When I set trim on my radio it doesn't really help. It just doesn't trim far enough and then the yaw starts getting wacky.

[PatrikE]

Set YAW P to 9.
Twist it fast both right and left.
Then you should really feel that it fights the rotation.

The rear motor should be tilted to right seen from rear.

[bear pants]

Set YAW P to 9.
Twist it fast both right and left.
Then you should really feel that it fights the rotation.

The rear motor should be tilted to right seen from rear.

I just did this and it does fight them more. But it seems at full left and right stick it turns really really slow for my taste. Also if I yaw right and let go of stick it holds heading perfect if I yaw left and let go of stick it rotates right still....

Okay I'll try tilting it right again.

[bear pants]

Okay it seems perfect now. Going to lower P to 7.5 so I can get more response in my yaw. Thanks!!!