From the course: Sketching for Product Design and AEC

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Creating compound curved surfaces: The CAD analogy

Creating compound curved surfaces: The CAD analogy

From the course: Sketching for Product Design and AEC

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Creating compound curved surfaces: The CAD analogy

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- We touched briefly on the process of creating curved surfaces using sectional development. At the end of that video, I altered the size of the quarter circles, and I also sketched a version that connects the sections with curves rather than straight lines. The resulting surface is referred to as a compound curve surface. This means that, unlike a cylinder, which is referred to as a developable surface, because it can be unfolded and laid flat, a compound curve surface curves in at least two opposing directions, and therefore, can't be unfolded flat. A sphere is an example of a compound curved surface. It curves along it's latitude and longitude. Just peel an orange and try to flatten the peeled sections on the kitchen table. Those are compound curved surfaces. With the addition of another curving direction, the resulting surface becomes more complex, and potentially more interesting. Again, if we compare this to how CAT software like SolidWorks generates these forms, we find some…

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