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Engineering Graphics and DesignGrade 12Quality review 0/4

Engineering Graphics and Design: Grade 12

The NSC year: complex assemblies with welding, machining and tolerance symbols; civil drawings from foundation to roof with services and site plans; interpenetration with offset axes; developments with seam allowance; and the full family of cam motion laws. Ends where the subject does — with examination readiness.

≈ 23 h6 sections · 32 lessonsNo ratings yet
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What you'll learn

  • Read and produce complex third-angle assemblies with welding, machining, surface-texture and tolerance symbols
  • Draw civil sets from foundation to roof, including electrical, plumbing, drainage and site plans
  • Construct interpenetration curves where the axes are offset rather than intersecting
  • Develop sectioned pyramids, cones and complex transition pieces, including seam allowance
  • Construct cam profiles for uniform, simple harmonic and uniform acceleration/retardation motion, with any follower type
  • Plot the loci of up to three points on a mechanism and work to NSC examination standard

Before you start

  • Grade 11 EGD: assemblies, interpenetration, developments, helix and uniform-motion cams
  • Confident with true-length construction and the generator method

Course content

0/32 lessons
1. Complex assemblies, symbols and tolerances6 lessons
  1. Complex Assemblies and Detailed ComponentsLesson42 min
  2. Welding, Machining and Surface SymbolsLesson40 min
  3. Tolerances and FitsLesson42 min
  4. Geometric TolerancingLesson38 min
  5. Detailed Component DrawingsLesson40 min
  6. Drawing Office Practice and RevisionsLesson34 min
2. Civil drawing: foundation to roof3 lessons
  1. Roof Construction and Roof PlansLesson42 min
  2. Electrical, Plumbing and Drainage LayoutsLesson40 min
  3. Site Plans and Natural FeaturesLesson38 min
3. Interpenetration and developments5 lessons
  1. Solid Geometry RevisionLesson40 min
  2. Interpenetration with Offset AxesLesson44 min
  3. Developing Sectioned Pyramids and ConesLesson44 min
  4. Seam Allowance and Practical DevelopmentsLesson38 min
  5. Developing Hoppers and ChutesLesson40 min
4. Cams, loci and motion6 lessons
  1. Simple Harmonic MotionLesson42 min
  2. Uniform Acceleration and RetardationLesson42 min
  3. Follower Types and Offset FollowersLesson40 min
  4. Flat, Wedge and Offset Follower CamsLesson40 min
  5. The Complex HelixLesson40 min
  6. Loci of Up to Three Mechanism PointsLesson42 min
5. Pictorial drawing and presentation4 lessons
  1. Isometric Views Including SectionsLesson42 min
  2. Complex Two-Point PerspectiveLesson42 min
  3. Reading and Interpreting Complex AssembliesLesson40 min
  4. Interpenetration of a Cone and a CylinderLesson42 min
6. PAT, CAD and examination readiness8 lessons
  1. The Grade 12 PATLesson42 min
  2. CAD Presentation and PlottingLesson40 min
  3. Complex Transition PiecesLesson42 min
  4. Keeping a Civil Set ConsistentLesson38 min
  5. Conventional Representations: A Working SummaryLesson36 min
  6. NSC Examination TechniqueLesson38 min
  7. Analysing Past PapersLesson36 min
  8. Final Revision StrategyLesson36 min