Quote Originally Posted by Doddy View Post
Random thoughts (though based on my experience with a 3D printer, wooden cabinet that it sat on, and the transmission into a wooden floor) - how much energy is transferred into the cabin?, Is there a case for some form of solid rubber isolation platform? (in my example, a 4-inch thick high-density foam pad to stop the incessant noise from the wife). Just another thought.

Also, from Voicecoil's perspective - consider whether soundproof the machine aids your own well being as well - I have, in the past, walked out of my shed to get some respite from cutting noise.
Best not to comment on 'the incessant noise from wife'.
One thing to design in if you enclose the machine is cooling air flow. A machine in a closed box will get mighty hot without adequate ventilation.

Kit