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  1. 3D Printer files are created using Computer-Aided Design (CAD) Programs, with “.STL” as their file extension. These files encode the surface geometry of the 3D models by a process known as tessellation. Tessellation is a process in which the surface of the 3D model is tilled together without letting it overlap or leave any gap.
    pick3dprinter.com/3d-printer-stl-files/

    The 4 Best Websites for Free 3D Printing Files

    • 1. Thingiverse Thingiverse is the ultimate 3D printing library. ...
    • 2. MyMiniFactory MyMiniFactory is a 3D printing library and community where you can find thousands of free and paid 3D models for download. ...
    www.makeuseof.com/free-3d-printing-files/
     
  2. Cults・Download free 3D printer models …

    Discover and download the best 3D models for all your 3D printing & DIY projects. Cults is a digital marketplace for 3D printing and design. Use our 3D model library to discover …