…m1v1=m2v2 is not about frequencies...
Momentum. True, but increasing the mass of a panel decreases its natural resonance frequency. A side effect. No free lunch.
dave
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Reminds me of the BJT vs MOSFET and other debates. At the end I figure you should use the material or tool that you are familiar and confident with. If you like working with mdf / plywood (pick one) and you can get good results with it, enjoy the work, can do it safely, then this is the material for you.
... That sounds just like your signature in different form.
But adding some beams or slim "beams" across a flat board, then bracing that board against the one parallel works really good, it's like increasing thickness + cancelling opposite forces. But much lighter and with far less waste than those that go bananas with their CNC machines.
Edit:
Not saying the "CNC lots of holes in boards and put them everywhere" approach does not work, because it's really good, but it takes so much for relatively little return.
But adding some beams or slim "beams" across a flat board, then bracing that board against the one parallel works really good, it's like increasing thickness + cancelling opposite forces. But much lighter and with far less waste than those that go bananas with their CNC machines.
Edit:
Not saying the "CNC lots of holes in boards and put them everywhere" approach does not work, because it's really good, but it takes so much for relatively little return.
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m1v1=m2v2 is not about frequencies
Yes, it is. If you add mass, the velocity of the oscillation movement is lowered by some factor, so the "oscillation is slower" by that factor. This is the same as saying the frequency is lowered by the same factor.
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