To use these software you have to pay to certain amount to these companies.Ģ) Open source CAD software: The source code of these CAD software is available freely for making any changes. Some of these CAD software are AutoCAD by Autodesk, CATIA by Dassault Systèmes, Pro/ENGINEER by Parametric Technology Corporation, Solidworks by SolidWorks Corp. Types of CAD Softwareġ) Proprietary CAD software: These are software which are licensed to the companies that have developed them. Though these software may not be as advanced as the costlier ones, they have a number of features that are good enough for a number of designing professionals and firms. To download and install free CAD software you don’t have to pay anything. Fortunately, now a number of free CAD software are also available on Internet. For a number of engineering designing professionals and firms this can be a major cost to incur. For instance, one of the most popular CAD software, AutoCAD 2009, costs more than $3000. Most of the CAD software are very expensive. There are number of other advantages offered by the CAD software. The CAD software helps in increasing the productivity of the designer, and reduce designing time, cost, and project completion time. The applications of the CAD software have been increasing in the last few years or so, hence their popularity has been increasing.
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