Subject Code & Name: ME25C13 – Computer Aided Design and Analysis
Regulation: R-2025
Semester: IV (Fourth Semester)
Branch: B.E. Manufacturing Engineering (Mfg)
Credits / L-T-P: 3 Credits | L-T-P: 3-0-0
Course Objectives
- To introduce the fundamentals of CAD and computer graphics, including transformations and geometric modeling.
- To develop skills in creating and analyzing part and assembly models using CAD tools, standards, and tolerancing.
- To apply visualization techniques for engineering design and manufacturing applications.
Full Unit-wise Syllabus
Unit I – Fundamentals of CAD and Computer Graphics
Product life cycle, stages of product development. Design process, sequential and concurrent engineering. Computer Aided Design (CAD): definition, CAD system architecture, applications in mechanical design and manufacturing. Computer graphics fundamentals, raster vs vector displays, display devices, basic rendering concepts. Coordinate systems, world, device, screen coordinates. 2D transformations, translation, rotation, scaling, reflection, shear. 3D transformations, basic operations and viewing concepts. Homogeneous coordinates, representation and matrix formulation. Graphic primitives, point, line, circle drawing algorithms (DDA, Bresenham’s line and circle).
Activities: Analyze a real product design cycle and identify where CAD tools are applied.
Unit II – Basics of Designs
Understanding of Projections, Scales, units, GD & T; its 14 symbols, Special characteristics & Title Block readings. Revision / ECN status of drawings – Customer Specific requirements – Drawing Grid reading
Unit III – Geometric Modeling
Types of geometric modeling, wireframe, surface, solid models. Topology, vertices, edges, faces, and their connectivity. Representation of curves, analytical and synthetic curves. Hermite cubic spline curve, definition and properties. Bezier curve, control points, blending functions, convex‑hull property. B‑spline curve, local control, knot vector, advantages over Bezier. Surface modeling – surface entities (ruled, lofted, revolved, swept). Representation of surfaces, Bezier surface and B‑spline surface.
Activities: Analyze a real product design cycle and identify where CAD tools are applied.
Unit IV – 2D Drafting
Projection views – Orthographic view, Axillary view; Half Section views, Broken Section view, Offset Section view – Title Block creation – BOM Creation – Notes creation – Ballooning of 2D drawing and its features for Inspection reporting
Unit V – 3D Modeling
Conversion of Views – 2D to 3D & 3D to 2D – Parametric and Non-Parametric Modeling – Tree features of 3D Modeling and its advantages – Surface Modeling – BIW (Body In White) – Solid Modeling, Boolean operations like Unites, Subtraction, Intersect, etc. Solid representation methods, Boundary Representation (B‑Rep), Sweep representation, Constructive Solid Geometry (CSG).
Activities: Implement a simple 3D object in any CAD software or graphics tool.
Unit VI – Assembly Modeling, Tolerancing and Motion analysis
Basics of Assembly modeling, Purpose of Assembly modeling & its advantages – Top to Down & BottomUp modeling approaches – Analysis of Clearances – Undercuts – Interferences – Stack up analysis –Cumulative effect of Tolerances in after assembly conditions- motion analysis.
Activities: Design a simple assembly in any 3D CAD software, apply mating conditions /relations, and compute motion analysis
Course Outcomes (COs)
- CO1: Describe fundamental concepts of CAD systems, computer graphics, coordinate systems, transformations, geometric modeling, visual realism, and assembly modeling.
- CO2: Apply coordinate transformations, geometric modeling techniques, and CAD standards to develop part and assembly models using appropriate tools.
- CO3: Analyze different modeling approaches, hidden surface removal techniques, and visualization methods for engineering design applications.
- CO4: Evaluate CAD models, tolerancing methods, assembly relationships, and data exchange standards to ensure effective design and manufacturing outcomes.
Assessment Pattern (Quick Note)
- Weightage: Continuous Assessment 40% | End Semester Examinations 60%
- Internal methodology: Quiz (5%), Assignments (25%), Review of GATE/ESE Questions (20%), Internal Examinations (50%)
Source: Official Anna University – B.E. Manufacturing Engineering R-2025 Syllabus
Last Updated: October 2026
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