Modifications

http://hotwirefoamcutterinfo.com/_NiChromeData.html

https://www.reddit.com/r/AskElectronics/comments/3ul8c2/how_to_power_nichrome_wire_for_an_acrylic_bending/

http://jacobs-online.biz/wire-xformer_selection.htm

http://www.botlanta.org/uploads/pdf/HotWireBender.pdf

http://www.wiretron.com/nicrdat.html