Lines
and line styles
In the first tutorial we learnt how to create simple shapes using the place line tool. The lines we created were all of the same thickness and type. But lines on an engineering drawing signify more than just the geometry of the object and it is important that you use the appropriate line types.
Line Thickness
For most engineering drawings you will require two thickness', a thick and thin line. The general recommendation are that thick lines are twice as thick as thin lines.
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A thick continuous line is used for visible edges and outlines. |
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A thin line is used for hatching, leader lines, short centre lines, dimensions and projections. |
Line Styles
Other line styles used to clarify important features on drawings are:
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Thin chain lines are a common feature on engineering drawings used to indicate centre lines. Centre lines are used to identify the centre of a circle, cylindrical features, or a line of symmetry. Centre lines will be covered in a little bit more detail later in this tutorial. |
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Dashed lines are used to show important hidden detail for example wall thickness and holes.. |
Page last updated by Paul Hudson
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