# Grade 12 Engineering Graphic and Design Notes

> CAPS-aligned Grade 12 Engineering Graphic and Design revision notes, broken down topic by topic with worked examples, diagrams, and key definitions.

- Page: https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes

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## Topics

Each section has a free preview; the full notes are in the free Hlayiso account.

### Mechanical Drawing

- [Mechanical Drawing notes](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/mechanical-drawing)
- [Bolts, Nuts, Keys and Mechanical Symbols](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/mechanical-drawing/bolts-nuts-keys-and-mechanical-symbols)
- [Tolerances and Detailed Component Drawings](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/mechanical-drawing/tolerances-and-detailed-component-drawings)
- [Orthographic Working Drawings and Sectional Views](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/mechanical-drawing/orthographic-working-drawings-and-sectional-views)

### Civil Drawing

- [Civil Drawing notes](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/civil-drawing)
- [Roof Construction and Building Detail](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/civil-drawing/roof-construction-and-building-detail)
- [Floor Plans, Elevations and Sectional Elevations](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/civil-drawing/floor-plans-elevations-and-sectional-elevations)
- [Site Plans, Services and Area Calculations](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/civil-drawing/site-plans-services-and-area-calculations)

### Pictorial Drawing

- [Pictorial Drawing notes](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/pictorial-drawing)
- [Isometric Drawing with Auxiliary Views and Sections](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/pictorial-drawing/isometric-drawing-with-auxiliary-views-and-sections)
- [Two-Point Perspective Drawing](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/pictorial-drawing/two-point-perspective-drawing)

### Solid Geometry, Interpenetration and Development

- [Solid Geometry, Interpenetration and Development notes](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/solid-geometry-interpenetration-and-development)
- [Interpenetration of Solids and Tubes](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/solid-geometry-interpenetration-and-development/interpenetration-of-solids-and-tubes)
- [Orthographic Views of Solids and Cut Surfaces](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/solid-geometry-interpenetration-and-development/orthographic-views-of-solids-and-cut-surfaces)
- [Surface Development of Interpenetrating Solids](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/solid-geometry-interpenetration-and-development/surface-development-of-interpenetrating-solids)

### Design Process and Drawing Principles

- [Design Process and Drawing Principles notes](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/design-process-and-drawing-principles)
- [Loci of a Point (Cam, Helix and Involute)](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/design-process-and-drawing-principles/loci-of-a-point-cam-helix-and-involute)
- [The Design Process and PAT Requirements](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/design-process-and-drawing-principles/the-design-process-and-pat-requirements)
- [General Drawing Principles and Conventions](https://www.hlayiso.com/grade-12/engineering-graphic-and-design/notes/design-process-and-drawing-principles/general-drawing-principles-and-conventions)

## Frequently asked questions

### Are the Grade 12 Engineering Graphic and Design notes free?

Each Grade 12 Engineering Graphic and Design note section has a free preview on Hlayiso. Create a free Hlayiso account to read the full notes on the web or in the app; the free plan has daily limits.

### Are the notes aligned with CAPS and the ATP?

Yes. All Grade 12 Engineering Graphic and Design notes are written against the official CAPS curriculum and ATP so you only study what’s examinable.

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