Introduction to Computer Aided Sketching:
Introduction, Drawing Instruments and their uses, relevant BIS conventions and standards. Lettering, line conventions, dimensioning, material conventions, and free hand practicing. Computer screen, layout of the software, standard tool bar I menu and description of most commonly used tool bars, and navigational tools. Co-ordinate system and reference planes HP, VP, RPP & LPP of 2D/3D environment. Selection of drawing sheet size and scale. Commands and creation of Lines, coordinate points, axes, poly-lines, square, rectangle, polygons, splines, circles, ellipse, text, move, copy, off-set, mirror, rotate, trim, extend, break, chamfer, fillet, curves, constraints viz., tangency, parallelism, inclination and perpendicularity.
Introduction, Definitions-Planes of projection, reference line and conventions employed. First angle and Third angle projection. Projections of points in all the four quadrants.
Projections of straight lines (located in first quadrant/ftrst angle only), true and apparent lengths, true and apparent inclinations to reference planes (No application problems and midpoint problems). Orthographic projections of plane surfaces (First angle projection only): Projections of regular plane surfaces-triangle, square, rectangle, pentagon, hexagon and circle-in simple positions inclined to both the planes; planes in different positions by change of position method only. (No problems on punched plates and composite plates).
Introduction, definitions -projections of right regular tetrahedron, hexahedron (cube), prisms, pyramids, and cones with axis inclined to both the planes. (Solids resting on HP only and no problems on octahedrons, and freely suspended solids.)
Introduction to section planes and sectional views.
Development of lateral surfaces of right regular prisms, cylinders, pyramids, and cones resting with base on HP only. Development of their frustums and truncations. (No problems on lateral surfaces of trays, tetrahedrons, spheres and transition pieces).
Introduction, Isometric scale, Isometric projection of simple plane ftgures, Isometric projection of hexahedron(cube), right regular prisms, pyramids, cylinders, cones, and spheres. Isometric projection of combination of two simple solids. Conversion of given isometric/ pictorial views to orthographic views of simple objects
Course Outcomes:
Upon completion of this course, students will be able to
Question paperpattem: