Engineering Graphics I

ENGINEERING GRAPHICS I

COURSE OBJECTIVE:

The student is expected to acquire the drafting proficiency depending on the operational function in order to perform the day to day activity USING MINI DRAFTER AND BY USING AUTOCAD.

FUNDAMENTALS

Use of drafting instruments – Bureau of Indian Standards (BIS) – Lettering – Vertical and Inclined – Dimensioning – Aligned and Unidirectional systems – Scaling – Importance of graphics in engineering applications.

GEOMETRICAL CONSTRUCTIONS

Dividing a given straight line into any number of equal parts – Bisecting a given angle – Trisecting a right angle – Drawing a regular pentagon and hexagon given one side.Conic sections- Construction of ellipse, parabola and hyperbola by eccentricity method.

PROJECTION OF POINTS AND LINES

Types of projection - Introduction to orthographic projection – Orthographic projection of points lying in four quadrants – Orthographic projection of lines in first quadrant - Parallel to both the planes – Perpendicular to one plane – Parallel to one plane and inclined to other plane – Inclined to both the planes.

PROJECTION OF SOLIDS

Orthographic projection of prisms, pyramids, cone and cylinder in first quadrant – Axis perpendicular to HP – Axis perpendicular to VP – Axis inclined to only one plane of projection – Change of position method only.

COMPUTER AIDED DRAFTING

Introduction to AutoCAD2015 – Basic commands – Coordinate systems (Absolute, Relative, Polar) – Drawing of title block with necessary text and projection symbols - Create basic drawing objects -Creation of simple figures like polygon and general multi-line figures using points, lines, circles, arcs and their combination – Setup a drawing with correct scales – Draw with precision using Coordinate input and object snaps – Dimensioning commands, Editing Dimensions and Dimension text – Dimension styles, Updating Dimensions, adding text to drawings –Drawing of front view and top view of simple solids like prism, pyramid, cylinder, cone and dimensioning.