I won’t deny that. I used to do design work for a company that made the foam inserts for airline seats. We did all kinds of different methods from sawn foam to hot-wire to CNC-cut and everything in between.
Not saying it would be easy or anything, but I’m always looking for some way to do more myself as opposed to clicking on “Buy it now”. But the more I look at these cheap CNC, I’m not sure they’d be up to the job, and I don’t have the coin for anything more major yet.