People tend to choose shapes with rounding and sleek surface because it creates feeling of natural shape and safety. Sharp edges make people feel uneasy and insecure. That’s why most of the products have rounding, a smooth surface this way creating a impression of a natural shape.
In this article you will find out how to draw singular rounding starting with a square and creating a smooth shape.
As cylindrical parts become relatively small, we speak of rounding. There are several ways to draw a singular rounding, but this is way is used, to highlight the relation of the rounding to the block shape.
Start with drawing a square and divide it in the middle so that it creates four smaller squares. Try to draw an ellipse in it. If you have troubles drawing an ellipse, click here to learn more about constructing ellipses.
Dividing the ellipse into four parts, one can distinguish two sharply curved rounding (around long axes), and two less sharply curved ones. The latter are easier to draw and that’s why usually drawn first.
To draw a three dimensional shape, start with a top and draw rounding in all four edges. Let these images be your guide and try to understand what for are specific lines and how they help to create a shape.
To keep all four rounding of the same proportion, a diagonal can be used to indicate the more sharply curved rounding in the outer squares. Diagonals are marked in red. Green lines are guides to keep most curved spots in equidistant from all four edges.
If we talk about quarter-circle rounding, they form an ellipse when put together again. Therefore the shading of the rounded edges will also form a cylinder when put together. In the image below you can see the relation between the shaded cylinder and a separate rounding.
Drawing singular rounding, uses less of the block shape as a guide for the rounding. And the rounding is well defined on the top surface and easily repeated on the base surface. The advantage of this approach is not only less lines, but also there is space for a more complex combination of rounding.
Most of the information is taken from a book “Sketching – The Basics” by Koos Eissen & Roselien Steur. It is a very useful book for industrial design students and those who want to learn how to sketch.