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Computer-Aided Design (CAD) refers to the use of computer systems to assist in the creation, modification, analysis, or optimization of a design. CAD software enables engineers, architects, and designers to produce precise drawings and models for manufacturing, construction, and product development. It replaces manual drafting with digital workflows, improving accuracy, efficiency, and collaboration. CAD is widely used across industries such as automotive, aerospace, civil engineering, and electronics, where precision and scalability are critical.
CAD files are saved in various formats, each serving specific purposes and compatible with different software platforms. DXF (Drawing Exchange Format) is a widely supported format developed by Autodesk for enabling data interoperability between CAD programs. It stores 2D and 3D drawings in a text-based structure, making it suitable for sharing across systems. IGS (Initial Graphics Exchange Specification) is a neutral file format used to exchange information between different CAD systems, particularly for surface geometry and wireframe models. STP or STEP (Standard for the Exchange of Product model data) is an ISO standard format that supports comprehensive 3D model data, including geometry, topology, and metadata, making it ideal for product lifecycle management and collaborative engineering.
BREP (Boundary Representation) is a modeling technique and file format that defines shapes using their spatial boundaries, such as surfaces, edges, and vertices. It is commonly used in solid modeling to represent complex geometries with high precision. Unlike mesh-based formats, BREP maintains topological relationships, which is essential for advanced simulations and manufacturing processes. Understanding these file formats is crucial for IT professionals working in CAD environments, as compatibility and data integrity directly impact workflow efficiency and system integration.