How to methodically configure and tune any ArduCopter

[amilcarlucas]

@Jai.GAY

Should the users based on the clip or the 30m/s/s (best below 15m/s/s) as the golden rule?

Users should use BOTH: Below 15m/s/s as the golden rule, and look at clipping. Like I said:

@amilcarlucas

• Vibrations over 30 are very bad
• Vibrations over 20 are causing issues even if you don’t know it yet
• Vibrations over 15 are in a grey area - it could go either way - check clipping, it must be zero
• Vibrations below 10 are good

@Jai.GAY

It is extremely challenging for a big drone with foldable arms or attachable arms to achieve less than 15m/s/s

Yes, I agree it is challenging that is why I wrote section1. If you can not solve the challenges, I suggest you find help to do it.

@Jai.GAY

How effective is a vibration damper at reducing vibrations?

Again section 1. It can be very effective if it is tuned. A vibration damper has a certain elasticity that must have a certain value depending on the mass, and the frequencies you need to dampen.

@Jai.GAY

What can cause it to get worse?

If that elasticity is incorrect it might amplify the oscillations it is meant to dampen. And so be VERY counterproductive. Again if you can not fix it, get help, there are people that can fix it for you.