As a result, STL files contain no scale information, and the units are arbitrary. All STL coordinates were required to be positive numbers in the original specification, but this restriction is no longer enforced, and negative coordinates are commonly encountered in STL files today. Before 3D printing a part, designers and engineers often need to adapt, optimize, and finalize 3D models. Wait until the SVG file is converted from the original. Binary files are more common since they are more compact.Īn STL file describes a raw, unstructured triangulated surface by the unit normal and vertices (ordered by the right-hand rule) of the triangles using a three-dimensional Cartesian coordinate system. 3D print a personalized cookie cutter from an stl file. The STL format specifies both ASCII and binary representations. STL files describe only the surface geometry of a three-dimensional object without representing color, texture, or other common CAD model attributes. It is widely used for rapid prototyping, 3D printing, and computer-aided manufacturing. ![]() Many other software packages support this file format. ![]() STL is a file format native to the stereolithography CAD software created by 3D Systems.
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