In article , Andy Evans
wrote:
Bolting a plate to the case is likely to alter the resonance of *that
case*. Why should that make a difference to the drive or electronics?
(DP)

Hello Dave - that's exactly the question I'm asking.

To find an answer, you have to perform the relevent tests, and collect the
data which you can then use as a basis for understanding. Your choice if
you wish to do this or not. I, and others, have suggested some test methods
that seem relevant. Up to you to choose to employ them or not. However if
you can't be bothered, then why ask for help?

Slainte,

Jim

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