They prefer to restrain their users’ liberty by offering only undisclosed proprietary file formats like DWG, DXF or ACIS (*.sat).įreeCAD being open source, it cannot license existing commercial translator libraries. The problem is that AutoCAD cannot import either of those, through Autodesk’s own fault. iges) and STEP (.stp, *.step), the latter being an ISO standard. You degrade your model when you export it to STL, and it’s a one-way trip.įreeCAD can export to open CAD formats such as IGES (*.igs. STL is a mesh format as as such can only be considered an output-only format for CAD software, or what I call “garbage out”.
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