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Drawing a (Base) Plate
When your drawing is properly set up, you’re ready to draw some objects. In this example, you use the Line command to draw a steel base plate and column, the Circle command to draw an anchor bolt, and the POLygon command to draw a hexagonal nut.
AutoCAD, like most CAD programs, uses layers as an organizing principle for all objects you draw. ssss1 describes layers and other object properties in detail. For now, think of layers as sheets of transparent plastic lying on top of the drawing. You can hide or display individual drawing elements by simply removing or replacing their particular sheet of plastic.
In this example, you create separate layers for the base plate, column, anchor bolts, nuts, and crosshatching. This might seem like layer madness, but when you’re creating complex drawings, you need to use layers properly to keep everything organized.
The following steps demonstrate how to create and use layers, as well as how to draw lines, circles, rectangles, and polygons. You also see how to move, copy, mirror, offset, and apply fillets.