I have been wanting to try this hot cutting method. I do some eletronics work so I have several soldering irons lying around including a Hakko 936
variable temp soldering station that has a temp range from 400 - 900 *F. I also have a collection of tips. I normally cut my fabric spread out on my carpeted floor. I'm afraid that a soldering iron would leave some lasting impressions in my carpet and my wife may have something to say about that. I'll stick to using my lighter until I have a safe cutting surface to attempt this.