From the course: Engineering Drawings for Manufacturing
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Use the correct line conventions to clarify geometry
From the course: Engineering Drawings for Manufacturing
Use the correct line conventions to clarify geometry
- [Instructor] Different line styles are used in mechanical drafting to help convey even more information about the three-dimensional geometry of parts. In this video, we'll discuss the different line style conventions and how they are used to depict internal features and complicated 3D curvature on a 2D drawing. We'll also describe where these line conventions are used and cases in which you might need to deviate from the rules slightly to improve clarity. In these example views, the only lines that are shown are those that represent the physical edges on the exterior of the part. These are called visible lines. However, it's usually helpful to also depict the internal features with dashed lines. These are called hidden lines, and it's preferred to show them in orthographic views. More complicated parts may have so many hidden lines that they end up obscuring the view. Most CAD programs allow you to manually hide…
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Contents
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Represent a 3D part in 2D using orthographic views3m 39s
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Depict internal features with section views2m 2s
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Enhance smaller features by depicting them in detail views1m 50s
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Leverage 3D CAD to create pictorial views1m 5s
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Use the correct line conventions to clarify geometry2m 16s
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Challenge: Choose and place views1m 1s
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Solution: Choose and place views1m 49s
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