Part 8
Module 40: Layouts – Part 2
Learning Outcomes
When you have completed this module, you will be able to:
- Describe lineweights and their use in a plotted drawing.
- Describe and apply the object and color methods of assigning lineweights in a drawing.
- Explain how to calculate and set customs viewport scakes.
Drafting Lesson: Lineweights
Industry standards have assigned a type, weight, and width to each drawing object on a plotted drawing. This makes the plotted drawings much easier to read and understand. It is important to follow those standards when printing a layout. The AutoCAD 2D book Lineweights chart, Figure 40-1, shows the basic linetypes and their assigned lineweight in both inches and millimeters.
Lineweights
Assigning and displaying lineweight is not important when creating and editing a drawing, but are very important when the layout of that drawing is printed. Lineweights are normally assigned by a company’s standard. The AutoCAD 2D book Lineweight Chart is shown in Figure 40-1. The two methods of assigning lineweight are by object or by color.
Assigning Lineweights by Object
One method of assigning lineweights is to assign a lineweight to each drawing object. When the layout is plotted, the plotter simply prints the drawing object with its assigned lineweight. When lineweights are assigned using this method, the lineweight can be displayed in both the Graphics window and the paper print. The lineweights can be assigned to each drawing object individually or ByLayer. ByLayer is much easier and is the method practiced in most companies including the AutoCAD 2D book.
Assigning Lineweights by Color
Assigning the lineweight by color is the most popular method used in the CAD world. Using a company standard chart, as shown in Figure 40-1, lineweights are assigned to each color. When the layout is plotted, the plotter looks at the color of each drawing object and prints it with the lineweight assigned to that color. When lineweights are assigned using this method, the lineweight cannot be displayed in the Graphic window. They only appear on the paper print. The color can be assigned ByObject or ByLayer. ByLayer is used by most companies and used in throughout the AutoCAD 2D book.
WORKALONG: Assigning Lineweights
Step 1
Open the drawing: AutoCAD 2D Lab 32-1.
Step 2
Using the SAVEAS command, save the drawing with the name: AutoCAD 2D Workalong 40-1. (Figure Step 2)
Step 3
Enable layout: Module Layout B. Create a viewport on layer: Viewport. Set the scale to 1.5:1 and lock the display. (Figure Step 3)
Step 4
In Paper space, on layer: Center Lines, draw the center lines on the views.
Step 5
Set the current dimensioning style to: 2D English. In Paper space, on layer: Dimensions, insert the dimensions shown on the figure. (Figure step 5A and 5B)
Step 6
Enter the LINEWEIGHT command to open the Lineweight Settings dialogue box. Ensure that your dialogue box matches the settings in the figure. (Figure Step 6)
Step 7
Open the Layer Properti