Reply by crank49

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Posted on Please poke holes in my Dust Collection Solution

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4032 posts in 2994 days

#1 posted 05-02-2013 06:32 PM

You can do a pretty good job of sound proofing a machine with a plywood (thicker the better) enclosure, painted inside and lined with open cell foam rubber. The open cell foam lets the sound waves penetrate into the foam then the wood outer layer reflects the waves back.
Using this simple technique of enclosing anything noisy we could, we lowered the background noise level in the foundry where I worked from 88db to about 72db. That might not sound like much, but it was enough improvement that the workers did not have to wear earplugs and they were very happy about that.

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