Delay issue on pith and roll axis

guntarsv

Hi everyone,
For most part i got the gimbal working good (in my opinion).
I do noticed that there is a little delay on pitch and roll axis. It seems that it is not responsive enough.
Here is some raw footage i uploaded, there you can see there is some soft camera movement, not gimbal or motor vibration, that is the delay, it is not keeping up with quadcopter's movement.
Here is the video: https://youtu.be/XdBM_3rwDnE
Here are some pictures of settings:
http://fpv-360.com/image/public/basic_settings.jpg
http://fpv-360.com/image/public/asvanced_settings.jpg
http://fpv-360.com/image/public/rc_settings.jpg
http://fpv-360.com/image/public/IMG_2430.JPG

Please let me know, what do you guys think could be the problem.
Thanks.

Garug

It is most likely because your P values are very low. Actually all PID are low.

guntarsv

Thanks for input.
When i do raise the P, I get vibrations.
Can some one post your PID values for GoPro gimbal? I think the values should be somewhat close.
I built this 3 axis gimbal. I am using these Trunigy motors from Hobbyking for all three axis.
http://www.hobbyking.com/hobbyking/store/__43037__2206_140Kv_Brushless_Gimbal_Motor_Ideal_for_GoPro_style_Cameras_.html
http://www.hobbyking.com/hobbyking/store/catalog/43037.jpg

Garug

It is more important how is your gimbal construction, and how solid is your camera installation, than motors, though motors play a big role too, not the motors them selfs, but the bearings. If there is play on bearings, the gimbal will vibrate easily.

Also it is important that all axis move feely. otherwise there will be the kind of delay you are having, especially at low PID.

My advise would be try to make the gimbal more solid, remove any flex it might have. Your gimbal looks quite ok (difficult to say looking just from one angle), make sure though that the camera is firmly installed and can not move. How is the IMU installed? Also make sure there is no play on the motor bearings. When the gimbal is solid enough, you can raise the PID and it will perform much better.

Howdy, Stranger!

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