Engineering Drawing: Multi-view (Orthographic) Projections

5. Multi-view (orthographic) projections (8 hours)

5.1 Orthographic Projections

5.1.1 First and third angle projection

5.1.2 Principal views: methods for obtaining orthographic views, Projection of lines, angles and plane surfaces, analysis in three views, projection of curved lines and surfaces, object orientation and selection of views for best representation, full and hidden lines

5.1.3 Orthographic drawings: making an orthographic drawing, visualizing objects (pictorial view) from the given views

5.1.4 Interpretation of adjacent areas, true-length lines, representation of holes, conventional practices

5.2 Sectional Views: Full, half, offset, broken (partial), rotated/aligned, revolved, removed (detail) sections, phantom of hidden section, specifying cutting planes for sections, conventions practices

5.3 Auxiliary views: Basic concept and use, drawing methods and types, symmetrical and unilateral auxiliary views, auxiliary sectional views