Practical Exercise 1 – Orthographic Views

Camosun College

Activity Objectives

By the end of this activity, you should be able to:

  • make orthographic sketches

 

Use sketching techniques to produce orthographic sketches of the following figures. For the purposes of these exercises, do not be concerned with dimensions. Concentrate on producing good, dark outlines, good circular shapes, and correctly drawn hidden and centre lines.

  1. Sketch one orthographic view of the object shown pictorially in Figure 1. Remember that the holes in the gasket are circular (not elliptical as they appear in the three-dimensional sketch shown). Add a title block with the following:

Title: Gasket

Sk. No.: D-1/031

Sk. by: (your name)

Date: (today’s date)

 

Isometric view of gasket with two holes

Figure 1 – Gasket

 

Graph paper grid on which to draw orthographic view of gasket

  1. Sketch two orthographic views (front view and top view), in the approximate scale of the object shown pictorially in Figure 2. Remember to place the views correctly and make sure that all hidden lines are clearly shown. Add a title block with the following:

Title: Stop piece

Sk. No.: D-1/032

Sk. by: (your name)

Date: (today’s date)

Isometric view of irregular shape object identified as a stop piece

Figure 2 – Stop piece

 

Graph paper grid on which to draw orthographic view of stop piece

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