UNIT 1:
Drawing Standards – Introduction to CAD software CAD user interface Data input modes – Coordinate systems – Units and precision Setting Limits and display units Drawing templates – Features of GUI. Sketching basic geometric entities. Sketching simple geometric entities: points, lines, circles, arcs, ellipse, rectangle, polygons, polylines, splines Use of object snaps – Practice exercises using simple geometric entities.
UNIT 2:
Modifying drawings: Move, copy, rotate and offset drawings; Mirroring, Scaling, Trim, extend, erase, explode – Fillet and chamfering Rectangular, Polar and Path array – Drawing exercise: Sketching and modifying 2D drawings.
UNIT 3:
Drawing properties: Line type, Line weight, Object properties Hatch and gradient Working with Layers – Dimensioning and annotations Adding tolerance to dimensions Working with text and tables Sketching with blocks and groups – Use of attributes Working with external references Layout, printing and publishing drawings – Exercise involving sketching 2D orthographic views of 3D geometries with dimensions and tolerances. Introduction to 3D – Isometric drafting – Conversion of orthographic projections of simple components into isometric views. Creating 3D components and assembly.Project: Students have to complete a project involving creating orthographic/ 3D views of the simple machine elements / assemblies such as centrifugal pumps, hydraulic cylinders, gear boxes etc. with dimensions following standard drawing practices using CAD software.