Working With Sketch Tools

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Tutorial 5-x Working With Sketch Tools 1

CHAPTER 3

TUTORIAL

Working With Sketch ToolsLearning Objectives

After completing this tutorial, you will be able to:

Construct lines and arcs using the Line tool

• Construct arcs using the Arc tool

• Construct circles using the Circle tool

• Construct rectangles using the Rectangle tool

•

Construct polygons using the Polygon tool

Required Competencies

Before starting this tutorial, you should have been able to:

• Understand the role of sketching

• Set up the sketching environment

• Understand the concepts of constraining and dimensioning sketches

Construct l ines and arcs w ith the Line tool

A. Lines

1. Begin a new standard.ipt part file on the default XY plane.

2. Click the Line tool on the Sketch toolbar.

Figure 1



2 Working With Sketch Tools

3. Click in the graphics area to start the line segment from point A and click

again to terminate it at point B.

Figure 2

4. Continue dragging horizontally across, click at point C and repeat

vertically up to point D.

Figure 3.a Figure 3.b

5. Right-click and select Done to finish.

Figure 4




B. Arcs

1. Select the Line tool on the Sketch toolbar. Click and hold the endpoint

D of the previously constructed geometry, then drag upward and to the right to

create Arc 1.


2. Release and repeat by changing direction. Hold the left mouse button

down and keep dragging to create Arc 2. Right-click and select Done to finish.

Figure 6




Construct arcs with the Arc tool

A. Three point arc

1. Begin a new standard.ipt part file on the default XY

plane.

2. Click the Three Point Arc tool on the Sketch toolbar.

Figure 7

3. Click in the graphics area to set the locations of the First , Second and

Third points on the Arc.

Figure 8





B. Center point arc

1. Start a new file, click the down arrow by the Arc tool on the Sketch

toolbar and select the Center Point Arc option.

Figure 9

2. Click in the graphics area to specify the following:

a. The location of the Center of the arc

b. The Radius and the Beginning of the arc

c. The End of the arc

Figure 10.a Figure 10.b Figure 10.c





C. Tangent arc

Construct an arc tangent to the one created in step B.2 above.

1. Click the down arrow by the Arc tool on the Sketch toolbar and select

the Tangent Arc option.

Figure 11

2. Click on endpoint A to specify the beginning of the second arc and then

click to specify its radius and end.

Figure 12.a

Figure 12.b

3. Click Esc to finish.




Construct circles w ith the Circle tool

A. Center point circle

1. Start a new file, click the down arrow by the Circle tool on the Sketch toolbar and select the Center point circle option.

Figure 13


a. The location of the Center of the circle

b. The Radius of the circle


Figure 14.c





B. Tangent circle-Circle tangent to three given lines

1. Use the line tool to construct triangle ABC by picking random points A , B ,

and C in the graphics area as shown in Figure 15.

Figure 15

2. Click the down arrow by the Circle tool on the Sketch toolbar and select

the Tangent circle option


Figure 16.c Figure 16.d

4. Click Esc to finish.




Construct rectangles using the Rectangle tool

A. Two point rectangle- Two corners across the diagonal

1. Click the down arrow by the Rectangle tool on the Sketch toolbar and

select the Two point rectangle option.

Figure 17


a. The location of one corner of the rectangle

b. Drag to the location of the diagonally opposite corner

Figure 18





B. Three point rectangle

1. Click the down arrow by the Rectangle tool on the Sketch toolbar and

select the Three point rectangle option.

Figure 19

2. Click in the graphics area to specify three corners of the rectangle as

shown below.


Figure 20.c





Construct polygons using the Polygon tool

Figure 21

A. Inscribed in a circle

1. Click the Polygon tool

on the Sketch toolbar

Figure 22

2. Select the Inscribed option and type the desired number of sides. Specifythe locations of the center and of one corner.

Figure 23




3. Click the Done button when finished.

B. Circumscribed about a circle

1. Select the Circumscribed option and type the desired number of sides. Specifythe locations of the center and of the midpoint of an edge.

Figure 24

2. Click the Done button when finished.

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