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An introduction to line symbols used in technical drawings, explaining their purpose and meaning. 15 different line symbols, including phantom lines, section lines, hidden lines, center lines, and more. Each symbol is described in detail, along with examples of their usage in a hex bolt section drawing.
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003.03 identify line symbols 0 Alphabet of Lines-Introduction o lines and line symbols used on drawings o drawings are easier to read o good contrast among different line symbols o generally two line widths: thick or thin o all lines are uniform, sharp and black
003.03 identify line symbols 0 Alphabet of Lines o used to show edges of an object o are thick and dark Visible/Object Lines
SECTION A-A
A
8
SECTION A-A
A
8
003.03 identify line symbols 0 Alphabet of Lines o used to show centers of round objects (arc & circles) o thin, long and short dashes Center Lines
003.03 identify line symbols 0 Alphabet of Lines-Summary The alphabet of lines are thick and thin line symbols used on drawings that form a kind of graphic alphabet. Each line and line symbol has a special meaning.