I'm getting disturbed values from both.
It clearly displays the signal's noise. When I say disturbed, it means that the signal has noise from the motors.
1. I know what an accelerometer measures. Force. I know physics.
2. Yes, the noise is caused by motors.
4. I tried already using rubber mounting on the accelerometer. I tried also the PU gel. (I got improvements, but not as much as I want)5. Do you know a better solution than all of these? I was advised some time ago to sink the board into some form of fluid which would reduce most of the vibrations. What do you think/know about it?