Therefore, it is important to ensure the export options in your design software are properly tuned in order to get an accurate file without creating an enormous file. For most parts, STL files larger than 5MB are not necessary. And as a result, the more triangles, the larger the STL file. The more complex a part becomes, the more triangles are required to duplicate the part model. This STL format basically approximates the surfaces of a solid model with triangles. 3D printer prep (slicer) software typically imports an STL file, applies printer and slicer settings as specified by the user, and then exports a GCODE file which is loaded into the printer in order to create the part. The defacto standard neutral file format for 3D printing is Stereolithography (.stl). Make sure to export as a solid and not surfaces. It is our top preference as well, but we can also use IGES (.igs) if necessary. The most common neutral file format typically used for injection mold tool design is STEP (.stp). Therefore, "neutral" files must be created and exported. The "native" design files are proprietary to the particular software maker and can't be easily read by other software packages used to design molds or print parts. Properly preparing a 3D CAD file is an important step in order to ensure your design data is the best it can be before sending to an injection molder or 3D printer.ģD CAD part files are created using design software such as SolidWorks, CATIA or Autodesk.
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