Page 221 - CITS - ED - Mechanical

ENGINEERING DRAWING - CITS

TABLE 3

Symbols for Direction of lay

SYMBOL INTERPRETATION

Parallel to the plane of projection of the
view in which the symbol is used.

Perpendicular to the plane of projection
of the view in which the symbol is used.

Crossed in two slant directions relative
to the plane of projection of the view
in which the symbol is used.

Multi-directional

Approximately circular relative to the
centre of the surface to which the
symbol is applied.

Approximately radial relative to the centre
of the surface to which the symbol is
applied.

Note: It should be necessary to specify a direction of lay not clearly defined by these symbols then this
shallbe achieved by a suitable note on the drawing.

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CITS :Engineering Drawing (Mechanical) - Exercise 9