Foam cutting guide?

[Capn Beeb]

I've got a Pelican 1750 coming my way that I plan to put my AR and Saiga in, and would like to cut the foam to fit them snuggly. What methods work for fitting and getting precise cuts?

[Rontalvos]

This will tell you everything you need to know.
http://www.ar15.com/forums/topic.html?b=3&f=4&t=292695&page=1

[mad.radhu]

this is the information you seek, you seek a hot wire foam cutter

http://www.ar15.com/forums/topic.html?b=3&f=4&t=292695&page=1

this one, this thread right here

also rontalvos didn't beat me to this >:|