Advice for rigidity upgrade. To profile or not?

[Voicecoil]

Thanks Jazz. What about doubling or even tripling the 2mm plates? Bolting them all together?
Would the 40x40 profile frame be better than the single 10mm aluminium base?

Cheers

It would help with the lateral rigidity, but it wouldn't be as good as a single thicker plate, as the flexing stiffness (in the flat direction) of a plate increases as something like the 3rd power of the thickness. The thing is that stacked flat plates can slide over each other therefore don't increase the stiffness so much. One thing that might work is if you glued the 2mm plates together with high strength epoxy, this would likely also help with damping a bit, but is obviously a bit of a faff to do