Quote:
Originally Posted by AndrewJ
Bit of overkill for an EQ6.
Also, there are myriad threads on pier vibrations/stiffness.
Unless there is something to create vibrations, it is all moot.
If there are vibrations present, you probably need to do a proper analysis, as designing to suppress them is not as simple as add mass/stiffness.
Accidentally hitting a mount ( or wind on the OTA ) is the worst normal scenario, and in this case, the OTA and mount are normally far weaker than the pier, so you will lose the subs, no matter what.
Andrew
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Indeed, ideally you want low mass and high moment of inertia, so any perturbation will have a low amplitude (eg immune to small breeze) and decay quickly. That said even an EQ6 probably deserves better than a 8-10mm diameter bolt...the attached diagram from my old engineering text don’t lie.