Yup, very true. I used the hot wire for large cuts and the hot knife from harbor Freight on the detail stuff.Gents,
Just while we're on the subject ...
There's "hot knives", which are just that ... hot blades for cutting.
Then there's also "hot wires", which are thin, taught electrical-resistance wires that are great for cutting foam, too.
Hmmmm...Harbor freight here I come.If you use a drywall saw like he does in the video, it will be very messy with rough edges but if you use a hacksaw blade with fine teeth it makes very little mess and you're left with much smoother edges. Better yet, go to Harbor freight and pick up one of their new Hot Knifes like I did (thanks to a suggestion here on the forum) and have no mess at all. There's so many different ways to approach working with extruded foam, that's what makes it so great.