Technical+Drawing

LESSON 1: TECHNICAL DRAWING 

SUMMARY

In this lesson, you have studied different systems to represent objects.

• When you do a quick first and freehand drawing of a figure, you use a sketch.

• When you use a 3D shape system, you are working with perspective.

• When you use the projections or different sides of a figure, you are working with the orthogonal views ( elevation, plan and outline).

To do that, you need different instruments: paper, pencil, rubber, set square, etc...(you have already learnt how to use them)

You can apply the scales for drawing if you need to represent a figure in a smaller or bigger size.

The use of the national or international norms of technical drawing is “The Normalization”, for example with the dimensions or size of the paper.

Finally, to show the different dimensions of a figure, apply the dimensioning norms that are normalized too.