Sheeting and Kerf settings (foam panel for 4 axis CNC hot wire cutting):
If the wing panel is tapered the kerf have different root-tip values. The wire in the shorter side will run slower, and more foam will be melted.
To have a good value for Kerf I suggest to :
measure the thickness of two little blocks of foam
place one at root and one at tip side
execute 5 cutting jobs
take a new measure of the sum of the slices. Use as Kerf the difference between old and new thickness divided by 10
(the number of applied cuts, considering the upper and lower part), for every side of the panel.