STL Import for AutoCAD is a STL file import plug-in for AutoCAD 2000, 2000i, 2002 and 2004. STL Import for AutoCAD gives AutoCAD the ability to import geometric data from ASCII as well as binary Stereolithography (STL) files. The STL file format is the Rapid Prototyping industry's standard data transmission format and is the format required to interact with stereolithography machines. Stereolithography files contain solids which are made up of 3 sided facets. STL Import for AutoCAD converts these facets into a single AutoCAD PolyFace Mesh entity and adds it to the contents of the currently opened AutoCAD drawing. STL Import for AutoCAD is very easy to use. This plug-in adds a new command to AutoCAD called "STLIN". Simply type "STLIN" at the AutoCAD command prompt and select a STL file to import.