Free Cad Software
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FreeCAD is a free and open-source general-purpose parametric 3D CAD modeler. FreeCAD is aimed directly at mechanical engineering and product design but also fits in a wider range of uses around engineering, such as architecture or other engineering specialities. FreeCAD is currently in a beta stage of development.
FreeCAD features tools similar to CATIA, Creo, Autodesk Inventor, SolidWorks or Solid Edge, and therefore also falls into the category of Mechanical computer-aided design (MCAD), PLM, CAx and CAE. It is intended to be a feature-based parametric modeler with a modular software architecture, which makes it easy to provide additional functionality without modifying the core system.
As with many modern 3D CAD modelers, it will have a 2D component in order to extract design details from the 3D model to create 2D production drawings, but direct 2D drawing is not the focus, neither are animation or organic shapes, although, thanks to its wide adaptability, FreeCAD might become useful in a much broader area than its current focus.
FreeCAD is intended to make use of other open-source libraries from the field of scientific computing. Among them are Open CASCADE (a CAD kernel), Coin3D (an incarnation of Open Inventor), the Qt GUI framework, and Python, a popular scripting language. FreeCAD itself can also be used as a library by other programs.
It’s simple to get a free CAD software. Just browse through the links, respect the company’s terms and conditions. You have to agree to any required services such as surveys – though not mandatory.