DESCRIPTION OF LINE
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APPLICATION
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1. Continous thick
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visible out lines and Edges.
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2. continous thin ( stright or curve )
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Imaginary lines, Dimension lines, Projection lines, Leader lines, Hatching, short centre lines.
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3.continous thin (Free hand )
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Limits of Partial or interrupted views and sections
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4. Continous thin zigzag
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Long break lines
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5. Dashed thick
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Hidden outlines and edges
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6. Dashed thin
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Hidden outlines and edges
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7. Chain thin
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Centre line, Trajectories
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8. Chain Thin, thick at Ends and changes of directions
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cutting planes
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9. chain thick
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Indication of lines or Surface
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10. Chain thin double dashed
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Outlines of adjacent part positions. Illustration : Alternative and extreme of movable parts centroidal lines initial outlines prior to Forming Parts situated in front
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