Group A
Projection graphics. Objects, condition
and methods of projection; Gnomonic, stereographic and orthographic
projections; Coordinate systems and grid scales, scale distortion, and
conditions of conformality and equivalence. Axonometric projections; Isometric;
Dimetric and oblique projections; Conical equivalent and. equivalent
cylindrical projections.
Spatial graphics. Basic principles of
multiview drawings and Monge's projections; Points in quadrants and octants;
Projections of lines and traces of lines; True relative positions of two planes
and of a straight line and a plane; Method of revolution. Projections of
polyhedrons, curved lines and surfaces; Contour mapping of curved surfaces;
Plane sections .of polyhedrons and curved surfaces; Intersection of planes and
surfaces and lines and surfaces; Development of curved surfaces. Affine correspondence
and its applications.
Product graphics. Introduction to
various product features; identification of
functional and non-functional, surfaces; Selection of datum; Tolerancing
of dimensions. Compatibility of product elements for manufacturing and assembly
requirements; Sectional and auxiliary views. .
Computer graphics. Basic principles for
interactive computer graphics; Systems and peripherals required; Point plotting
technique; Line drawing displays; Modelling of two and three-dimensions;
Display of solid objects.
Group B
Drafting principles. Manipulation and use
of drafting equipments and instruments; Exercises in instrumental drawing;
Introduction to drafting codes as per ISO and BIS; Technical lettering.
Drawing exercise. Drafting problems
involving consideration of - stereo metric features; Toleranced dimensioning;
partial views and sectioning, auxiliary sections, schematic product symbols.
Drafting exercises involving (a) preparation of details, (b) aggregation for
assembly, (c) exploded machine kinematics, etc.
