Engineering  Computer-Aided Design (CAD) 
Two and three dimensional design and drafting software for general use drafting including ANSI standard, Surface Modeling, and numerous output formats including DXF, IGES, Gerber Photo, CGM, Acrobat PDF, EPS, Interleaf, FrameMaker, and Patran. Sold in free, Professional, Universal and Source code...
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| Engineering Computer-Aided Design (CAD) 
Two and three-dimensional mechanical design and drafting software for ANSI/DOD/MIL standard drafting, Surface Modeling, Solid Modeling, Numerical Control Machining, Die Design, Flat Pattern Layout, Nesting, Finite Element Preprocessing, and User Customization in C/C++ or Fortran
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