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AutoCAD 2D_I. Module 6: Sectional Views. Module Objectives. Differentiate the different types of sectional views. Create sectional views drawing from a given isometric or oblique drawings. Define hatching and explains it’s function. Introduction to Sectional Views.
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AutoCAD 2D_I Module 6: Sectional Views
Module Objectives • Differentiate the different types of sectional views. • Create sectional views drawing from a given isometric or oblique drawings. • Define hatching and explains it’s function
Introduction to Sectional Views A sectional view is that view seen beyond an imaginary plane passing through an object at right angles to the direction of sight. Sectional views are used to show the interior construction or details of hidden features that can not be shown clearly by outside views.
Introduction to Sectional Views The cutting plane on which a section has been taken is indicated by a heavy dash line. Arrow heads at the ends of the cutting plane lines are used to indicate the direction in which the sections are viewed. See the following figures
Types of sectional views Half Section Full Section • Non-sectioned parts • Rib and Web Sections Next
Hatching Hatching lines are thin lines and should preferably be inclining at 45 degrees. They should be evenly spaced.
Hatching If there are two or more adjacent sectioned parts, the hatching lines should either be of different spacing or different direction. See the following figures. However, hatching pattern should be the same for separate areas of a single object.
Examples on Sectioning Example 2 Example 1 Example 4 Example 3 Next
Worksheets and Homework Worksheet 2 Worksheet 1 Homework Worksheet 3 Next
Worksheet 2 Match the correct section view with the corresponding drawing. Write the correct sectional view letter beside the drawing number in the space provided. Next
Worksheet 3 Use an A3 size drawing sheet to redraw the following views: 1. The top view. 2. The complete sectional front view at A-A. 3. The side view. Next
Homework Using the THIRD angle projection, draw the following ORTHOGRAPHIC views of component shown below. 1. A complete sectional side view from arrow S. 2. A front view from arrow F. 3. A plan view from arrow P Next