[gionibravo]

Hello,

I have a reptile500 with revolution board.
It was flying perfect before I had a big crash.
I changed props, arms, added VTX and camera.
Now when i fly it, i can barely control it.
In Rate mode everything is good, I tunned PIDs and it flyies very nice, but when i go in atti mode, it driffts very bad to the right. I changed the values in attitude->settings for virtual boardlevel, but it keeps driffting, sometimes it stays still, sometimes driffts a little left, but mosly driffts hard right.
I am trieing to use it at -8°C, could the cold be the problem?
Please help!

[f5soh]

Your issue is definitively related to vibrations that affects the Accelerometers.

Balance props and mount the board using adhesive foam or something that reduce/dampen vibrations.
Be sure the Attitude > Settings > Filtering  Acceleromters is not set to zero.

[gionibravo]

strange cause i didn`t have this problem before, and it is mounted the same.
Now i have better props and better balanced motors, so less vibrations than before.
I will look if accel filter is 0 or not, and i will try mounting on some foam.

[TheOtherCliff]

Look for damaged arms or loose mounting or bad motor mounts.  If it can flex more than before, it will do that sometimes.