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DWG (from drawing) is a proprietary [3] binary file format used for storing two- and three- dimensional design data and metadata.It is the native format for several CAD packages including DraftSight, AutoCAD, ZWCAD, IntelliCAD (and its variants), Caddie and Open Design Alliance compliant applications.
Computer-aided design (CAD) is the use of computers (or workstations) to aid in the creation, modification, analysis, or optimization of a design. [ 1 ] : 3 This software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to create a database for manufacturing.
One goal of CAD is to allow quicker iterations in the design process; [9] another is to enable smoothly transitioning to the CAM stage. [10] Although manually created drawings historically facilitated "a designer's goal of displaying an idea," [11] it did not result in a machine-readable result that could be modified and subsequently be used to directly build a prototype. [12]
The table below provides an overview of notable computer-aided design (CAD) software. It does not judge power, ease of use, or other user-experience aspects. The table does not include software that is still in development (beta software). For all-purpose 3D programs, see Comparison of 3D computer graphics software.
DesignSpark Mechanical is a 3D computer-aided design (CAD) solid modeling software application. It is licensed as proprietary freeware. It enables users to solid model in a 3D environment and create files to use with 3D printers. Using the direct modeling approach, it allows for unlimited and frequent design changes using an intuitive set of tools.
AutoCAD DXF (Drawing Interchange Format, or Drawing Exchange Format) is a computer-aided design (CAD) data file format developed by Autodesk [2] to enable CAD data exchange and interoperability between AutoCAD on different computing platforms. [3]
CADAM (computer-augmented design and manufacturing) is CAD-related software that was developed by Lockheed. [1] CADAM was originally written for IBM mainframes and later ported to UNIX workstations, including the IBM RT PC. A variant of CADAM called Micro CADAM was also developed for PCs under DOS.
FreeCAD – Parametric 3D CAD modeler with a focus on mechanical engineering, BIM, and product design. HeeksCAD; LibreCAD – 2D CAD software using AutoCAD-like interface and file format. MakeHuman; MeshLab; Open Cascade Technology (OCCT) – a CAD kernel for 3D CAD, CAM, CAE, etc. OpenSCAD – A scripting-based 3D CAD software.