CNC has been a interest of mine for many years, I think apart from the technical aspects there is something about a machine doing your work in a finer and more repeatable way. 

CNC Foam Cutting

More to come on Cutting Foam, in the meantime have a look at an article John Hughan put together for the Airborne Magazine.

A Picture of the Stryowin machine

Software for CNC Wing and Fuse Design

You cannot go past Compufoil for the your airfoil/planform utility

Over past 3 years I have developed a VB6 application which I call CNC Workbench.

Follow the link to some screen images

If anyone is interested I could be tempted to make a demo copy available.

2 1/2 D CNC Router

More to come