Anybody had success building these? Commercially built, they sell for a small fortune. So, I'm hoping some A-Goners have applied a little ingenuity and can recommend how I can buld some for my music room.
I use a DIY hot wire foam cutter with a beefy variable voltage dc power supply. Just Google "building a hot wire foam cutter," you'll get a load of sites telling you how to do it.
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