alphabet of lines

This is a thick dark line use to show outline of object, visible edges and surfaces.

• visible line

• center line

• section line

• hidden line

a  line is a medium weight line, made of short dashes with gaps to show edges, surfaces and corners which cannot be seen

• center line

• section line

• hidden line

• visible line

are very thick, continuous lines used to show the boundary of the drawing or to separate different objects drawn on one sheet.

• border line

• center line

• section line

• short break line

are used to reduce the length of the longer lines. But the object should have consistent shape for using long break lines and used for flat surfaces.

• center line

• cutting plane line

• section line

• short break line

are drawn to indicate the exact center of a component being drawn. They are made from a series of lighter long a short dash

• section line

• hidden line

• center line

• visible line

– is a fine, dark, solid line with arrowheads on each end. It indicates direction and extent of dimension.

• center line

• dimension line

• section line

• cutting plane line

are special lines placed on a drawing which indicate the area of the drawing through which an imaginary cut has been made to reveal internal details

• visible line

• cutting plane line

• section line

• hidden line

are thick lines that run through the center of the object that the interior wants to provide an interior view of.

• section line

• cutting plane line

• hidden line

• visble line

are used to draw different forms of objects, and each line has a definite form and weight.

• alphabet of lines

• Types of lines

is the ability to draw something without depending on instruments

• Mechanical Drawing

• Freehand Drawing