I have a 3D printer. It weights about 20-25 lbs. It sits on a table upstairs and runs for hours. Whatever.... Well at night when you are trying to sleep you can hear it humming along. I tried using some closed cell foam. About 1-1/2" by 1-1/2" and 3/8" thick. Works great... For a few days. then the foam gets squished down to 1/16". The printer is not really heavy, but the foam over time crushes. Once it crushes it get noisy again. Let the foam sit for a day and it will expand again. I have another kind in the garage I might try.
Any other ideas??
Any other ideas??