Engineering Graphics & Design Lab

Unit I

Introduction to Engineering Drawing and Orthographic Projections: Principles of engineering graphics, Dimensioning, Lettering, Scales — plain, diagonal and engineering, Orthographic projection, Projection of points and lines — lines inclined to one plane and both planes.

Unit II

Projection of Planes and Solids: Projection of polygonal surface and circular lamina in first quadrant inclined to one or both reference planes, Classification of solids, Projection of prisms, pyramids, cylinder and cone with axis inclined to one reference plane by change of position method.

Unit III

Sections of Regular Solids and Development of Surfaces: Sections of right regular solids, Auxiliary views for true shape of sections of prism, cylinder, pyramid and cone, Development of surfaces for regular solids.

Unit IV

Isometric Projection: Isometric scales, Isometric projections of simple and combination of solids, Perspective projection — orthographic representation of perspective views, plane figures and simple solids, visual ray method, Conversion of pictorial view into orthographic projection.

Unit V

Introduction to Computer Aided Design: AutoCAD basics — Line, Circle, Polyline, Rectangle, Hatch, Fillet, Chamfer, Trim, Extend, Offset, Dim style, Conversion of isometric views to orthographic views and vice-versa in AutoCAD, Creation of engineering models and their presentation in standard 2D blueprint form.