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The STL file format is a file format used to describe three-dimensional objects. It consists of a series of triangular faces, each face composed of three vertices and a normal vector. It is commonly used in 3D printing and computer-aided design (CAD) software, where three-dimensional models can be exported as STL files for further processing and manufacturing. The STL file format is simple and easy to use, making it widely used in various fields.
The 3MF file is a modern 3D file format designed specifically for 3D printable models (additive manufacturing). It aims to be the successor to the popular traditional STL format (also a common format in 3D printing) to overcome its limitations.
The 3MF file format is based on XML and is compressed using standard Zip file compression to generate small, easy-to-transfer files. The format supports 3D meshes as well as all related materials and textures contained in the Zip file.