Hot Wire Foam Cutters (videos)
A hot wire foam cutter is something that most people don't need - and perhaps have never even encountered - but if you can use one, nothing else will really do. In my own experience, they're primarily used by guys building fiberglass aircraft. The classic Rutan designs (VariEze, Long-EZ, et al.) were designed to utilize this tool and it has many other uses, too. Have a look…
How to make Hot Wire Foam Cutter at home by alishanmao
https://www.youtube.com/watch?v=SCbEeW_n7OU
Hot Wire Foam Cutting by FliteTest
https://www.youtube.com/watch?v=fi3CAtpvJJs
home made hot wire cutter by yzguyfl63
https://www.youtube.com/watch?v=K2L7K2Keqpg
Simple homemade DIY Hot wire cutter or router table by v6133cl
https://www.youtube.com/watch?v=ME0WgH-AAdc
DIY Foam Cutter on the Cheap - HOT WIRE! by GuruBrew
https://www.youtube.com/watch?v=NA5WowY6j5Q
simple homemade hot wire foam cutter by jonathan hanson
https://www.youtube.com/watch?v=xHSB4z75YqI