IMPORTANCE OF THE ALPHABET OF LINE IN DRAFTING
The lines in the Alphabet of Lines are used to describe shape, size, hidden surfaces, interior detail, and alternate positions of parts. Each conveys a particular meaning on the drawing.
Line is the most basic visual element. Lines can be used to define shapes and figures, but also to indicate motion, emotion, and other elements.
It is usually only the very simple type of engineering detail that has an outline composed entirely of straight lines The inclusion of curves within the outline of a component may be for several reasons: to eliminate sharp edges, thereby making it safer to handle; to eliminate a stress centre, thereby making it.
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Andrea 1812
