Modeling transition in AutoCAD

Creating a 3D model of a rectangle to round transition is easier than most think. Let’s try it.

Start by creating a rectangle of the desired size (use the ‘Line’ command), let’s use 12 x 5 for this example. To keep the math easy, use 0,0 for the first corner point. Then key-in the other corner as the size of the rectangle.

Select the ‘Rectangle’ command from the Draw menu.

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