Today design development team should do thorough research before choosing right CAD tools for design and analysis. 2D CAD technology has already reached to its full drawing efficiency and all advantages have long ago been absorbed. 3D CAD approach is a completely different technology, capable of providing far more wide-ranging benefits across the whole of the civil, structural and mechanical engineering process.
Whereas 2D CAD reduces time scales to some extent, 3D CAD goes much further, directly supporting the whole product development cycle, speeding up every activity and increasing the quality of design by removing many sources of inaccuracy and error. The accurate 3D solid geometric model with all engineering information attached to it, becomes a complete ‘digital product model for purposes of design review, analysis and in a form immediately usable by all engineering processes. When allied to product data management and the Internet, 3D solid modeling provides an entire foundation for product information flow across the collaborative engineering process.
Early 2D drawings provide an indirect and incomplete picture of an engineering product or system, subject to interpretation and error. Taking off data in correct form for analysis, simulation and manufacturing processes requires additional effort and is subject to mistakes. Sending drawings digitally to partners, customers and suppliers is fine, but the potential for errors and misinterpretation remain.
By contrast, 3D CAD modeling produces a complete and accurate geometric model of the product, analogous to a physical model. Any required geometric and physical information can be derived from it for purposes of engineering analysis, simulation and manufacture, using linked specialist applications that have become an integral part of the whole engineering process. Product and engineering data management, similarly integrated, ensures that the engineering product is fully and accurately documented by the time the design is complete.
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