CAD

The CAD section of Open Source Internet provides the best free and open source alternatives for Computer-Aided Design (CAD). This includes several open source alternatives to Autodesk AutoCAD.

SALOME

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CAD - SALOMEVisit Site: SALOME

Cost: Free

Comments: Free and open source CAD software.

Description: SALOME can be used as standalone application for generation of CAD models, their preparation for numerical calculations and post-processing of the calculation results.

FreeCAD

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CAD - FreeCADVisit Site: FreeCAD

Cost: Free

Comments: Free and open source CAD software.

Description: FreeCAD is a general purpose feature-based, parametric 3D modeler for CAD, MCAD, CAx, CAE and PLM, aimed directly at mechanical engineering and product design but also fits a wider range of uses in engineering, such as architecture or other engineering specialties. It is 100% Open Source and extremely modular, allowing for very advanced extension and customization.

AutoQ3D Community

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3D - AutoQ3D CommunityVisit Site: AutoQ3D Community

Cost: Free

Comments: Free and open source software for 2D and 3D CAD.

Description: AutoQ3D Community is an application for 2D and 3D CAD. The source code of AutoQ3D Community is released under the terms and conditions of the GNU General Public License.

Archimedes

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CAD - ArchimedesVisit Site: Archimedes

Cost: Free

Comments: Open source CAD software.

Description: Archimedes is a free and open source CAD (Computer Aided Design) software. It is a robust system built over Eclipse’s Rich Client Platform fully based on plug ins. This means it is easily extensible but also has a pretty thin core that allows you to select the features you need and drop the other ones easily.

QCAD

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CAD - QCADVisit Site: QCAD

Cost: Free

Comments: Open source CAD software.

Description: QCAD is an application for computer aided drafting in two dimensions (2d). With QCAD you can create technical drawings such as plans for buildings, interiors, mechanical parts or schematics and diagrams. QCAD works on Windows, Mac OS X and many Linux and Unix Systems. The source code of the QCAD Community Edition is released under the GPL (Open Source).