Problems and Opportunities: A sheet metal aircraft landing gear door was provided by the client. Sheet metal stamping dieswere to be milled.

Downstram Application: An iges128 (Nurbs) CAD model was required. The CAD model will be exported to FeatureCAD milling of the stamping dies.

Solution: 

1.Original aircraft door.(back)	2. The model was scanned in polygon format using our proprietary 3-D scanning systems. (This image is greatly simplified for display purposes)
3. A Nurbs surface (iges128) CAD model was created. The Nurbs surface is "watertight" and all patch boundaries are tangent.	4. The Nurbs surface has been interrogated for fidelity with the polygonized mesh and a color map generated (purple indicates zero deviation).
	5. The iges model converted to a solid. This file is now ready for use in almost any downstream CAD program, including SolidWorks, ProEngineer, Catia, SDRC IDEAS, Solid Edge, Mechanical Desktop, SurfCam, MasterCam, DelCam, etc.