Page 163 - CITS - Fitter - Trade Theory

FITTER - CITS

MODULE 11

LESSON 28 : Introduction to CAD

Objectives
At the end of this lesson you shall be able to
• define the CAD and types of CAD
• state the 2D CAD purpose, feature, application and examples
• state the 3D CAD purpose, feature, application and examples
• state the precautions while using CAD.

• Definition

CAD stands for Computer-Aided Design. It refers to the use of computer software to create, modify, analyze, and
optimize designs for various products and systems. CAD software allows designers, engineers, architects, and
other professionals to digitally draft and model 2D and 3D representations of objects, components, buildings, or
mechanical structures. CAD tools provide a wide range of features and functionalities, including precise measure-
ments, geometric modeling, simulation, rendering, and documentation, which streamline the design process and
facilitate collaboration among stakeholders.
• Types of cad

1 2D CAD
2 3D CAD
2D CAD (Computer-Aided Design)
Software is used to create two-dimensional digital representations of objects, components, or architectural plans.
Here’s some detailed information about 2D CAD:
1 Purpose
2D CAD software is primarily used for drafting and detailing. It allows designers and engineers to create accurate
and detailed technical drawings, schematics, floor plans, and other 2D representations of objects or structures.
2. Features
• Drawing Tools
2D CAD software provides a variety of drawing tools such as lines, arcs, circles, polygons, and splines to create
geometric shapes and lines.
• Editing Tools
It includes tools for modifying and editing objects, such as trimming, extending, filleting, chamfering, and scaling.
• Dimensioning

Dimensioning tools allow users to add accurate measurements and annotations to drawings, including linear
dimensions, angles, radius, diameter, and text labels.
• Layer Management

CAD software typically supports layering functionality, allowing users to organize and manage different elements
of the drawing separately for better organization and control.
• Snap and Grid

Snap and grid features assist users in aligning and positioning objects accurately within the drawing space.
• File Compatibility
2D CAD software supports various file formats for importing and exporting drawings, facilitating compatibility with
other CAD software and collaboration with colleagues and clients.

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CITS : CG & M - Fitter - Lesson 28