The video shows a demonstration of WingWire, a basic program that can generate gcode for hotwire wing cutting. The cutting footage is sped up.
Excuse the strange colors, there was an issue with the screen recorder.
Files can be downloaded here:
www.thingiverse.com/thing:3676825/files
www.rcgroups.com/forums/showthread.php?3467209-WingWire-4-axis-gcode-freeware