Making Stringers & Knees from XPS foam [part 2] - Dream Boat Build

This video shows me making Stringers and knees from XPS (Extruded Polystyrene) for my boat. This is the second segment of the stringer build.
Im still learning this editing software. Please forgive any screwups...
Forum friend has done something similar. Page in norwegian, and thread is "several years long": baatplassen.no...