According to the same requirements for drawings, lines with different purposes must have the appropriate thickness. To avoid cluttering the drawing and make it easy to create it, AutoCAD allows you to set the line thickness directly when printing. In this method, AutoCAD maps the line color to a predefined thickness value. You can set the thickness value for each color of an object in a document by selecting and editing the print style Sheet in the print settings window.
The most commonly used printing style is Monochrome.ctb in this case, the drawing will be printed in black and white.
After selecting a print style, you must edit it by clicking the button next to the drop-down list.
In the style editor, on the Card tab, assign each line color that is used in your drawing the appropriate characteristics, including the line thickness in the line Weight drop-down list.