Computer-Aided Design

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3 Tech-Design Computer-Aided Design eseries Edition S0

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5 FIRST EDITION First Printing, June 2010 Copyright 2010 Lab-Volt Systems, Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical, photocopied, recorded, or otherwise, without prior written permission from Lab-Volt Systems, Inc. Information in this document is subject to change without notice and does not represent a commitment on the part of Lab-Volt Systems, Inc. The Lab-Volt software and other materials described in this document are furnished under a license agreement or a nondisclosure agreement. The software may be used or copied only in accordance with the terms of the agreement. ISBN Lab-Volt, Tech-Design and Mind-Sight logos are registered trademarks of Lab-Volt Systems, Inc. Lab-Volt recognizes product names as trademarks or registered trademarks of their respective holders. Certain clipart and images used within this course are used with permission from: Copyright 2003 Microsoft Corporation, One Microsoft Way, Redmond, Washington , U.S.A. All rights reserved. Copyright 2003 Lab-Volt Systems, Inc. and its licensors. All rights reserved. All rights reserved. Copyright 2009 JUPITERIMAGES, and its licensors CorelDRAW 9. All rights reserved. All other trademarks are the property of their respective owners. Other trademarks and trade names may be used in this document to refer to either the entity claiming the marks and names or their products. Lab-Volt Systems, Inc. disclaims any proprietary interest in trademarks and trade names other than its own.

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7 Computer-Aided Design Table of Contents Introduction...1 Introduction to CAD Introduction to AutoSketch...3 AutoSketch Learning AutoSketch...5 AutoSketch Features Using the Features...8 Basic Drawing Tools Your First Drawing (Imperial)...9 Your First Drawing (Metric) Create a Technical Drawing Drawing an MP3 Player...13 Using CAD Drawing Your Speaker (Imperial)...15 Drawing Your Speaker (Metric)...17 Drawing a Floor Plan Designing a Bedroom Floor Plan (Imperial)...19 Designing a Bedroom Floor Plan (Metric)...21 Finishing the Floor Plan Adding Furniture (Imperial)...24 Adding Furniture (Metric)...25 Printing...27 Perspectives Drawing the Top View (Imperial)...28 Drawing the Top View (Metric)...29 Orthographic and Isometric Projections Making an Orthographic Drawing...30 Making an Isometric Drawing...31 Designing a House Beginning the House (Imperial)...32 Beginning the House (Metric)...34 Adding Design and Detail Finishing the House (Imperial)...36 Finishing the House (Metric)...38 Appendix A Safety...41 Tech-Design by Lab-Volt vii

8 Table of Contents Computer-Aided Design viii Tech-Design by Lab-Volt

9 Computer-Aided Design Introduction Introduction This is to be used with the multimedia course presentation and the Student Guide. The remains at the workstation and contains information and procedures that are specific to the course. Please do not write in this. Record all of your notes and data in your own Student Guide. The multimedia course presentation will refer you to a specific activity title in this guide. Some units may not have activities requiring directions in this, therefore that unit title will not appear in the Table of Contents. Tips for navigating the multimedia course presentation can be found in the Mind-Sight Lab-Volt Multimedia etraining System Installation and User Guide (Mind-Sight Installation and User Guide). Tech-Design by Lab-Volt 1

10 Introduction Computer-Aided Design Equipment and Supplies The following equipment and supplies are provided with the Computer-Aided Design course: Multimedia Presentation Mind-Sight Lab-Volt Multimedia etraining System Installation and User Guide Student Guide AutoSketch 10 Software Drafting Kit Graph Paper 11 x 17 (100) Tracing Paper (44) Paper Quad Pad 2 Tech-Design by Lab-Volt

11 Computer-Aided Design Introduction to CAD Introduction to AutoSketch Open the AutoSketch application In the Start Up dialog box, click on the Wizard tab. Then select Start Drawing Immediately. Click on OK. Take a minute or two to move the cursor along the All-In-One toolbar and watch as the tool is identified by name. 3. Look at the bottom left side of the AutoSketch window as you move the cursor over the buttons. A description of the tool or button appears in the Status Bar message area. To access the AutoSketch tools, you can use the pull-down menus from the Menu Bar, the buttons on the toolbars, or open pop-up toolsets. Clicking on a button on a toolbar is the same as selecting the corresponding menu item. If a button that you want is not visible on the toolbar, click and hold for a moment and a toolset appears. Drag the cursor to the button you want and release. The tools and menus that you will use to draw will be explained in detail throughout the course. Now that you have explored the All-In-One toolbar, let s preview the drawing power of AutoSketch by looking at a sample drawing. 4. From the File menu, choose Open. AutoSketch displays files in the Open Drawing File dialog box. Make sure the Drawings folder appears in the Look In: pull-down menu. (C:\Program Files\ AutoDesk\AutoSketch10\Drawings) Double-click on the file labeled Birdhouse. A drawing of a birdhouse appears. Move your cursor anywhere in the drawing area. You ll notice that the dial box, located on the Status Bar, shows the exact location of the cursor at all times. The coordinates on the left (Absolute) display the location of the cursor in relation to the origin. The coordinates on the right (Relative) display the location of the cursor in relation to the last point entered. You can view a drawing in different ways by using the Zoom tools To zoom in, click on the View menu then click on Zoom In. (You can also click on the Zoom In button on the All-In-One toolbar.) Now click and hold the mouse, and drag the cursor from one corner of the area you want to enlarge, to the opposite corner. Release the mouse button. To zoom out, click on the View menu and then click on Zoom Out. (You can also click on the Zoom Out button on the All-In-One toolbar.) Click and hold the mouse and drag the cursor to indicate the area the current view should occupy after the zoom. Then release the mouse button. To return to a previous view, click on the View menu and select Last, or you can click on the Last View button on the All-In-One toolbar. Take turns with your partner viewing different parts of the birdhouse in greater detail. NOTE: If at any time you cannot return to the original view of the birdhouse, click on the File menu and select Close. Select No to the Save Changes to Birdhouse? question. Now click on the File menu again and select Open. From the Open Drawing File dialog box, double-click on the filename Birdhouse. Tech-Design by Lab-Volt 3

12 Introduction to CAD Computer-Aided Design 11. If you have extra time, you can look at the other drawings saved in AutoSketch. You must first close the birdhouse drawing by selecting File and then Close. Remember to select No to Save Changes to The Birdhouse To open another drawing, select File and then Open. From the Open Drawing File dialog box, double-click on a drawing. When you are finished, select File and then Close. (Remember to select No to the save changes question.) 15. When you are done exploring, exit AutoSketch by selecting File and then Exit. 4 Tech-Design by Lab-Volt

13 Computer-Aided Design AutoSketch Learning AutoSketch You will now try some basic drawing techniques. Alternate with your partner in practicing the use of AutoSketch. 1. The AutoSketch window appears with the Start Up dialog box displayed. 2. Click on the Wizard tab and then select Start Drawing Immediately. Click on OK. Remember to use the cursor to help you find the buttons and tools Move your cursor around in the drawing area. Now stop the cursor somewhere on the screen. Look at the numbers in the dial display on the Status bar. These numbers are the coordinates of the cursor. Move the cursor around the screen and notice how the coordinates change. The dial shows the exact location of the cursor at all times. To view the coordinate type, move your cursor over the dial display area and look at the prompt box that appears next to the cursor to see what type of coordinates you are using. It should read Absolute (Grid xy). Coordinates are numbers that specify the location of one point in relation to another. This relation is classified as either absolute or relative. AutoSketch expresses locations in three ways: xy (Cartesian), polar, and isometric coordinates. To help you draw objects, AutoSketch provides a grid. It is the on-screen equivalent of graph paper, and like graph paper, it helps you align objects visually. Another useful feature to help you draw is the Gridpoint Snap tool. It restricts cursor movement to specific intervals. The cursor snaps to each gridpoint. 6. Turn the Gridpoint snap feature on by clicking on the Gridpoint button on the All-In-One toolbar. You ll know gridpoint snap is turned on when a red circle attaches to your cursor when you move your cursor to the drawing area when you draw an object. Remember, place your cursor over a button to display its name, then select the one you want. Now you are ready to learn some of the tools that AutoSketch provides for drawing objects. An object is any line, circle, box, or other shape you draw. Take turns with your partner drawing the different objects. 7. Note that some of the buttons in the All-In-One toolbar have a small arrowhead on the bottom right corner of the button. That arrow lets you know there are more options provided through that button. Click and hold the button to view a pop-out menu. As you move your cursor over the buttons in the pop-out menu, the name of each option appears. Clicking again on the option you want selects it Click on the Line Single button on the All-In-One toolbar. You may have to first click and hold on the Line Multiple button to display the Line Single button. Move the cursor into the drawing area. Pick the starting point of your line and click. Then pick the ending point and click. Easy right? Now try the Line Multiple button to draw connecting lines in the drawing area. When you are finished drawing the lines, click on the right mouse button (right-click). The box that appears around the line means that the last line you drew is selected. The Edit bar displays geometric properties for that line. All-In-One Toolbar with Pop-Out Menu Tech-Design by Lab-Volt 5

14 AutoSketch Computer-Aided Design Since the last line you drew is selected (box around it), you can change one of the settings on the Edit bar by selecting the text in it, entering a new value, and pressing Enter. Try it. Change the Line length by first highlighting the value that appears in the box now and entering a new value. Then press Enter. You can experiment with different settings on the Edit bar for that line if you want. Now try drawing double connecting lines using the Line Double tool. End the lines by right-clicking the mouse. Practice drawing some lines. To make more space, you can erase some of your objects by first selecting the objects you want erased. To do this, click on the Select Direct button on the All-In- One toolbar. Then drag the cursor around the objects you want deleted. You ll know the objects are selected when a box surrounds them. Now click on the delete key on the keyboard. You will notice that part of the grid also is deleted. Click on the Redraw button on the All-In-One toolbar to redraw the grid. The next tool you will try is the 3 Point Arc. Click on that button now. You will draw an arc by picking three points. Pick a point to begin the arc and click on the mouse button. Move the mouse and pick your second point on your arc. Click the mouse button. Now when you move your mouse, you are creating the arc. Select an endpoint by clicking the mouse. Take turns with your partner and practice drawing some of the other arcs available. You may have to right-click to complete some of the other arcs. Remember that to make more room in the drawing area; you click on the Select Direct button on the All-In-One toolbar to select the items to be deleted. Then press the Delete key on the keyboard. Click on the Center, Side Circle button on the All-In-One toolbar. To draw a circle, first pick your center and click the mouse. Then move the mouse to draw the size of your circle. Click the mouse again to complete the circle. To draw a circle by first selecting the side of the circle, select the Side, Side Circle button. Try it. Next try drawing a circle by selecting three points, which is similar to drawing the 3 point arc. Click on the 3 Point Circle button. Experiment with the other types of circles. Now try drawing a Single Polyline. Click on the Single Polyline button on the All-In-One toolbar. Pick a point to begin the polyline and click on the mouse. Move the mouse and pick some more points for your polyline, clicking the mouse button each time. To end your polyline, right-click the mouse Now let s try using the Sketch Polyline tool. Click on that button now. To use this tool, hold down the left mouse button and move the cursor around in the drawing area. A polyline follows the path of the mouse. When you are finished, release the mouse button. The next tool you want to try is the Rectangle tool. Try this one on your own. (Here s a hint: click the mouse first to pick your first corner, then move the mouse and pick the opposite corner of the box). Try drawing the different types of rectangles. Keep some of these objects on the screen so you can add color to them. To add an outline color to an object, you must first select the object. Do you remember how to do that? Click on the Select Direct button and click on the object you want selected. (A box will appear around the object when it is selected). Once the object is selected, you can change the outline color of your object by clicking on the down arrow that appears next to the Color button on the Property bar. Select a color from the pull-down color menu that appears. To add a color fill, first click on the Solid Color tab of the Content Librarian (located on the right side of the screen) then click, hold and drag the color you select to the inside of your object. Release 6 Tech-Design by Lab-Volt

15 Computer-Aided Design AutoSketch your mouse and your object is filled. Click anywhere on the screen to de-select your object so you can see the colors you added. Practice drawing the objects that you have learned so far. Take turns with your partner. When you are finished, select File from the Menu Bar, then Exit. Select No to the question, Save Changes? Tech-Design by Lab-Volt 7

16 AutoSketch Features Computer-Aided Design Using the Features 1. In the Start Up dialog box, click on the Wizard tab. Then select Start Drawing Immediately. Click on OK. Before you try the Copy, Move, and Erase features in AutoSketch, you need to draw some objects on the screen. Make sure some of the objects do not touch each other. Take turns with your partner drawing different objects on the screen. Remember, you must click the button of the object you want to draw first, and then move your cursor in the drawing area and draw your object You will now learn how to copy your objects. First select the object you would like to copy by clicking on the Select Direct button on the All-In-One toolbar. Then click on the object you want selected. When your object is selected, click on the Copy button on the Standard toolbar (which is located directly below the Menu bar.) Now click on the Paste button on the Standard toolbar. Then move the cursor to the new location. Then click the mouse one more time. The object you copied and the original object should appear on your screen. If your screen is too full, select some of your objects and delete them using the Delete key on the keyboard. Click on the Redraw button if needed. The Redraw button is in the All-In-One toolbar. You can change the location of an object. To do this, first select the object. Once the object is selected, move the cursor in the center of the object until the cursor changes into a crosshair. Click, hold, and drag the mouse to the new position. Release the mouse to complete the move. You now know how to draw, move, copy, erase, and color objects. Let s look at some of the other options in AutoSketch. Other features you haven t used are changing the style and width of lines First select an object by clicking on the Select Direct button on the All-In-One toolbar and then clicking on the object you want to select. Click on the arrow button that appears next to the Style button on the Property bar. Select a line style from the pull-down menu that appears. To change the width of the line, click on the down arrow that appears next to the width button on the Property bar. Select a width from the pull-down menu that appears. To select a different color for the line, click on the down arrow that appears next to paint bucket icon and select Solid. Then select a color from the pull-down menu. Click anywhere on the screen to de-select your object so you can see your new line, line width, and line color. Try drawing other objects with these different line styles, line widths, and line colors. When you are finished, delete your objects from the screen. (You can use the Select All button on the All-In-One toolbar to select all the objects, then press the Delete key). Click on the Text Point button on the All-In-One toolbar. Move the mouse anywhere in the drawing area and click. The text cursor now appears. Type your and your partner s name and press the Enter key on the keyboard. Let s change the text so that you can see your name better. You do this by first selecting your name. Once your name is selected, you can make changes using the Edit bar. Click on the down arrow that appears next to the Font box and select a font. Change the height to 1" by first selecting your text. Now type in the number 1 in the Text Height box on the Edit bar. Take turns with your partner and practice the new tools you have learned. When you are finished, select File and then Exit. Select No to the question, Save changes? 8 Tech-Design by Lab-Volt

17 Computer-Aided Design Basic Drawing Tools Your First Drawing (Imperial) In the Start Up dialog box, click on the Wizard tab. Then select Start Drawing Immediately. Click on OK. Turn on Grid point Snap. The Gridpoint Snap button is on the All-In-One toolbar. Remember to drag your cursor over the buttons to display their names, and then select the one you want. Move the cursor to the bottom left corner of the drawing area until the dial on the Status bar reads 0,0. This is the original point of your drawing. Each grid line represents.25" (lighter grid lines. The darker grid lines represent 1.0"). The first thing you need to draw is a line, so select the Line Single tool from the All-In-One toolbar. Start with your cursor at 0,0, move it to the first major grid line to the right, and then move it up three major grid lines. The dial on the Status bar reads (1.00, 3.00). Click to start the line. Move your cursor (and the line) to the right until the dial (left display) shows (7.50, 3.00) and click NOTE: Any time you make a mistake, click on Edit and then Undo. After the object is removed, you might notice that the area of the grid where the object was is also removed. You need to click on the Redraw button, which is on the All-In-One toolbar. You may have to click and hold the Zoom In button to display the Redraw button. Before you go any further, you need to save your drawing. Select File and then Save. The Save Drawing File dialog box appears. Make sure you are saving your drawings in the Drawings folder (the word Drawings appears in the Save In: box). If you are not in this folder, click on the down arrow that appears in the Save In: box, and click on the Drawings folder. In the filename: box, enter your initials (or your partner s) followed by the number 1. The Save As Type: is the default AutoSketch (*.SKF). Click on Save. You will now draw a sun. Select the Center, Side Circle tool from the All-In-One toolbar. Move the mouse to the coordinates (6.50, 7.00) and click. (Make sure you are looking at the left dial display). Now move the mouse to the right to the coordinates (7.50, 7.00) and click. You just created a sun. Color the sun by first selecting the circle. To do this, click on the Select Direct button and click on the object you want selected. (A box will appear around the object when it is selected). Then click on the Solid Color tab of the Content Librarian and drag a color yellow to the center of the circle. You will now draw the mountains. Click on the Single Polyline tool in the Draw All-In-One toolbar. You will pick 5 points for your mountain: a. Point 1: Move the cursor to coordinates (1.00, 3.00) and click. (Make sure you are looking at the left side of the dial display). b. Point 2: Move the cursor to coordinates (2.00, 5.00) and click. c. Point 3: Move the cursor to coordinates (4.25, 3.00) and click. d. Point 4: Move the cursor to coordinates (6.00, 5.00) and click. e. Point 5: Move the cursor to coordinates (7.50, 3.00) and click. Then keep the cursor at coordinates (7.50, 3.00) and right-click the mouse. Change the color of the mountains. Do you remember how to do this? Here s a hint: you must select the mountains first. 16. Select File and then Save to save your drawing. AutoSketch automatically saves your drawing under the filename you gave it earlier Next you will draw the lake. Click on the Ellipse Axes tool in the All-In-One toolbar. Your first point will be at coordinates (1.00, 2.00), so move your mouse to those coordinates and click. Tech-Design by Lab-Volt 9

18 Basic Drawing Tools Computer-Aided Design Your second point will be at coordinates (7.50, 2.00). Move your mouse to those coordinates and click. The third point is at coordinates (7.00, 1.25). Move your mouse to those coordinates and click. Then right-click to end the ellipse. You can fill the color of the lake using the Content Librarian. Don t forget to select the lake first. Now is a good time to save your work. Select File and then Save. Take turns with your partner adding different objects to your scene. Don t forget to use different colors. Try drawing a tree and some clouds. You can also add a title to your scene by using the Text Point tool. 24. When you are finished, save your work, then exit AutoSketch by selecting File then select Exit. 10 Tech-Design by Lab-Volt

19 Computer-Aided Design Basic Drawing Tools Your First Drawing (Metric) 1. In the Start Up dialog box, click on the Wizard tab. Then select Start Drawing Immediately. Click on OK. 2. Click on Tools and select Drawing Options. The Drawing Options dialog box will appear. Click on the Units tab. Select Centimeters under Length by clicking on the down arrow. Under Decimal Precision select Under Fractional Precision select 1 8. For the Area select Square Centimeters and for Decimal Precision select Select Metric for the Measurement System. Under Angle select Degrees; select 0.01 for Decimal Precision; select Standard (+CCW) for Orientation. Under Scalar Precision select Make sure the box next to Show Leading Zeros is checked and the Period is selected for Decimal Symbol. Make sure the box is checked next to Display Units. 3. Click on the Grid tab and select Rectangular. Select Major as Interval and Keep Grid Square. Type in Snap Interval = 1 cm, Major Interval = 1 cm, and select Minor Style = Subdivisions, Minor Subdivisions = 5. Verify that the Grid Position and the Origin are 0 cm and 0 cm. Click on OK Turn on Grid point Snap. The Gridpoint Snap button is on the All-In-One toolbar. Remember to drag your cursor over the buttons to display their names, and then select the one you want. Move the cursor to the bottom left corner of the drawing area until the dial on the Status bar reads 0,0. This is the original point of your drawing. Each grid line represents 2 mm (lighter grid lines). The darker grid lines represent 1.0 cm. The first thing you need to draw is a line, so select the Line Single tool from the All-In- One toolbar. Start with your cursor at (0,0), move it to the first major grid line to the right, and then move it up three major grid lines. The dial on the Status bar reads (1.00, 3.00). Click to start the line. Move your cursor (and the line) to the right until the dial (left display) shows (20.00, 3.00) and click. Drawing Options Units Tab Drawing Options Grid Tab Tech-Design by Lab-Volt 11

20 Basic Drawing Tools Computer-Aided Design NOTE: Any time you make a mistake, click on Edit and then Undo. After the object is removed, you might notice that the area of the grid where the object was is also removed. You need to click on the Redraw button, which is on the All-In-One toolbar. You may have to click and hold the Zoom In button to display the Redraw button. Before you go any further, you need to save your drawing. Select File and then Save. The Save Drawing File dialog box appears. Make sure you are saving your drawings in the Drawings folder (the word Drawings appears in the Save In: box). If you are not in this folder, click on the down arrow that appears in the Save In: box, and click on the Drawings folder. In the filename: box, enter your initials (or your partner s) followed by the number 1. The Save As Type: is the default AutoSketch (*.SKF). Click on Save. You will now draw a sun. Select the Center, Side Circle tool from the All-In-One toolbar. Move the mouse to the coordinates (15.00, 15.00) and click. (Make sure you are looking at the left dial display. Now move the mouse to the coordinates (15.00, 13.00) and click. Color the sun by first selecting the circle. To do this, click on the Select Direct button and click on the object you want selected. (A box will appear around the object when it is selected). Then click on the Solid Color tab of the Content Librarian and drag a color yellow to the center of the circle. You will now draw the mountains. Click on the Single Polyline tool in the Draw All-In-One toolbar. You will pick 7 points for your mountain: a. Point 1: Move the cursor to coordinates (1.00, 3.00) and click. (Make sure you are looking at the left side of the dial display). b. Point 2: Move the cursor to coordinates (3.00, 9.00) and click. c. Point 3: Move the cursor to coordinates (4.00, 6.00) and click. d. Point 4: Move the cursor to coordinates (7.00, 11.00) and click. e. Point 5: Move the cursor to coordinates (10.00, 4.00) and click. f. Point 6: Move the cursor to coordinates (14.00, 9.00) and click. g. Point 7: Move the cursor to coordinates (20.00, 3.00) and click. Then keep the cursor at coordinates (20.00, 3.00) and right-click the mouse. Change the color of the mountains. Do you remember how to do this? Here s a hint: you must select the mountains first. 17. Select File and then Save to save your drawing. AutoSketch automatically saves your drawing under the filename you gave it earlier Next you will draw a lake. Click on the Ellipse Axes tool in the All-In-One toolbar. Your first point will be at coordinates (1.00, 2.00), so move your mouse to those coordinates and click. Your second point will be at coordinates (20.00, 2.00). Move your mouse to those coordinates and click. The third point is at coordinates (20.00, 1.00). Move your mouse to those coordinates and click. Then right-click to end the ellipse. You can fill the color of the lake using the Content Librarian. Don t forget to select the lake first. Now is a good time to save your work. Select File and then Save. Take turns with your partner adding different objects to your scene. Don t forget to use different colors. Try drawing a tree and some clouds. You can also add a title to your scene by using the Text Point tool. 25. When you are finished, save your work, then exit AutoSketch by selecting File then select Exit. 12 Tech-Design by Lab-Volt

21 Computer-Aided Design Create a Technical Drawing Drawing an MP3 Player In the Start Up dialog box, click on the Wizard tab. Then select Start Drawing Immediately, click on OK. Turn on Gridpoint Snap. The Gridpoint Snap button is on the All-In-One toolbar. The first thing you need to draw is a box, so click on the Rectangle tool on the All-In-One toolbar. Move the cursor to coordinates (2.00", 1.00") and click. Next move to coordinates (6.00", 10.00") and click. (Remember to look at the left dial display). Now draw another rectangle within that first rectangle. Make sure the rectangle is still selected. Move the cursor to coordinates (2.50", 5.00") and click. Move to coordinates (5.50", 9.50") and click. NOTE: Any time you make a mistake, click on Edit and then on Undo. After the object is removed, you might notice that the area of the grid where the object was is also removed. You need to click on the Redraw button, which is located on the All-In-One toolbar Before you go any further, you should save your work. Select File and Save. The Save Drawing File dialog box appears. Make sure you are saving your drawing in the Drawings folder. If you are not in this folder, click on the down arrow that appears in the Save In: box and click on the Drawings folder. In the filename: box, enter your initials (or your partner's) followed by the number "2". Click on Save. The outside corners of most MP3 players are rounded. To do this you need to use the Trim tool in the Edit menu. First you must select the MP3 Player (click on the Select Direct tool and then click on your drawing). Select Edit from the Menu bar and select Trim and then click on Round. The cursor changes to a circle. Move the cursor, which is now a small circle, to the top line of the outside rectangle of the MP3 player and click. The line is now highlighted in a different color. Move the cursor to the left line of the outside rectangle and click. The top left corner is now rounded. Repeat this process for the remaining three outside corners. You will now draw some circles in your player. Select any of the circle tools you prefer. Center your circles on coordinates (4.00", 3.00"). Draw three concentric circles with the following radius: 0.50", 1.00" and 1.25". Select the circle with 1.00" radius, and using the line width tool from the Property bar, change the line width to 0.055". Select the inner circle, which has a radius of 0.50", and fill it with the color of your preference, using the Solid Color menu from the Content Librarian. NOTE: As you make changes in your drawing, you may lose sections of the grid. You may use the Redraw tool periodically to renew all grid lines. Also do not forget to periodically save your drawing. You may have observed that the player you have drawn is bigger than any MP3 player you have seen. Drawings are often made in sizes that allow for easier drawing. The resulting drawings may be bigger or much smaller than the real products. The final drawing should always show all dimensions to assure its accurate specification. This is easily done with the scaling and dimensioning functions in AutoSketch In order to scale your drawing, first select the entire MP3 player. You can accomplish this by either selecting the Select All button in the All-In-One toolbar, or select Edit from the Menu bar, then click on Select and then on All. Click on Edit and select Transform and then select Scale. Tech-Design by Lab-Volt 13

22 Create a Technical Drawing Computer-Aided Design The major grid spacing represents 1 inch. Your drawing appears to depict a device that is 4 inches by 9 inches in size. Probably half that size would be more reasonable for an MP3 player. 13. Move your cursor to the Scaling Factor box, which is located in the Edit Bar. There should be a check mark in the box and 1.00 is displayed as the scaling factor. Change the scaling factor to.50 by double-clicking on the scaling factor to highlight it and then enter.50. Press the Enter key Scaling Factor Box Move your cursor on the MP3 player drawing and click once to scale it. Your drawing is now drawn to scale. You may want to click on the Redraw button to refresh your grid. In order to display the dimensions of your device, click on Draw from the Menu bar and select Dimension and then Horizontal. Move the cursor to the left edge of your drawing and click. Then move the cursor to the right edge of your drawing and click. The overall horizontal dimension is displayed. Follow a similar procedure for the vertical dimension. You can dimension any part in your drawing in the same way you just did. Try dimensioning any other part of the drawing you feel needs a dimension You will now draw a border around your drawing. Click on the Rectangle tool on the All-In-One toolbar. Draw a box around the entire drawing, leaving room between the border and the drawing so that you can add a title box to the bottom right of the border. The lines in your border should be thicker than the ones in your drawing, so you must change the width of the line. First select the line using the Select Direct tool. Click on the down arrow that appears next to the Width button on the Property bar and select the Thicker line. Now draw another box, called the title box, in the right corner. Click on the Line Single tool and draw a horizontal line in your title box so you have a top half and a bottom half, approximately the same size. You are ready to add the title and your name to your drawing. Click on the Text Point tool on the All- In-One toolbar. Move the cursor to where you want the text to appear in the top box and click. Type MP3 PLAYER and then press the Enter key on the keyboard. Type your name and your partner s name in the bottom box in the same way. To move the text, select it using the Select Direct tool and drag it to its new location. When you are finished, select File and then Save to save your drawing. Select File and then Exit to exit AutoSketch. 14 Tech-Design by Lab-Volt

23 Computer-Aided Design Using CAD Drawing Your Speaker (Imperial) In the Start Up dialog box, click on the Wizard tab. Then select Start Drawing Immediately. Click on OK. Turn on Gridpoint Snap only. First select the Snap Off button to turn off the snap tools. Then select the Gridpoint Snap button to turn on Gridpoint Snap only. Only the two top buttons of the snap tools should be depressed. Gridpoint Snap Tool Click on the Rectangle tool and draw a box with the first corner coordinates at (1.00, 2.00) and the second corner coordinates at (7.00, 9.00). (Remember to look at the left dial display). Draw another box with the first corner coordinates at (2.00, 4.00) and the second corner coordinates at (6.00, 8.00). Now click on the Center, Side Circle. Move to coordinates (3.00, 3.00) and click. Then move to coordinates (2.50, 3.00) and click again. Draw another circle at coordinates (5.00, 3.00) and (4.50, 3.00). Now is a good time to save your drawing. Select File and then Save. The Save Drawing File dialog box appears. In the Filename box, enter your initials (or your partners) followed by number 3. For example, if your initials are GL, you would type GL3. Make sure you are in the Drawings folder. If you are not, click on the down arrow next to the Save In: box and select the Drawings folder. Then click on Save. Click on the Select Direct tool and select the inside box. Click on the Hatch tab of the Content Librarian. Use the scroll bar in the Content Librarian window to find the desired hatch style. When you find it, click, hold, and drag it and fill the inside box. Click on the Line Single tool. In the left circle, draw a line that has starting coordinates of (3.00, 3.00) and ending coordinates of (2.50, 3.00). In the right circle, draw a line that has starting coordinates of (5.00, 3.00) and ending coordinates of (4.50, 3.00). Click on the Text Point tool. Move to coordinates (2.25, 2.25) and click. Type ON and press Enter. (Do not type the quotation marks). Now select the word ON using the Select Direct button and move the word down (click, hold, and drag) so it is not covering the circle. Click on the Text Point tool. Move the cursor to coordinates (4.50, 2.25) and click. Type VOLUME and press Enter. Select the word and move it so it is not covering the circle. Tech-Design by Lab-Volt 15

24 Using CAD Computer-Aided Design NOTE: Any time you make a mistake, click on Edit and then Undo. After the object is removed, you might notice that the area of the grid where the object was is also removed. You need to click on the Redraw button, which is on the All-In-One toolbar Click on the Text Point tool. Move to coordinates (3.25, 8.50) and click. Type TD COMPUTERS and press the Enter key. Select the words and move them so they are centered above the smaller box. Save your work by selecting File and then Save. Now add a border. The following steps will explain how to do this. Click on the down arrow that appears next to the Pattern button on the Property bar and click on None. Then click on the down arrow that appears next to the Width button and Select 3 pixel. Click on the Rectangle tool and draw a box at coordinates (0.50, 10.00) and (7.50, 0.75). Draw another box at coordinates (4.00, 1.75) and (7.50, 0.75). Click on the Line Single tool and draw a line dividing the box so there is a top and bottom. You are ready to add the title and your name to your drawing. Type SPEAKER in the top box and your name and your partner s name in the bottom box. Use the Text Point tool. When you are finished, select File and then Save to save your drawing. If you have extra time, you and your partner can design your own speaker. First click on File and then Close to close this drawing, then select File and then New to start all over. Follow the instructions above if you get stuck. Don t forget to save your new speaker. You can use your initials followed by the number When you are finished, select File and then Exit to exit AutoSketch. 16 Tech-Design by Lab-Volt

25 Computer-Aided Design Using CAD Drawing Your Speaker (Metric) 1. In the Start Up dialog box, click on the Wizard tab. Then select Start Drawing Immediately. Click on OK. Proceed to step 3 if AutoSketch is already set up for metric drawings. Otherwise, follow step 2 directions Click on Tools and select Drawing Options. The Drawing Options dialog box will appear. Click on the Units tab. Select Centimeters under Length by clicking on the down arrow. Under Decimal Precision select Under Fractional Precision select 1 8. For the Area select Square Centimeters and for Decimal Precision select Select Metric for the Measurement System. Under Angle select Degrees; select 0.01 for Decimal Precision; select Standard (+CCW) for Orientation. Under Scalar Precision select Make sure the box next to Show Leading Zeros is checked and the Period is selected for Decimal Symbol. Make sure the box is checked next to Display Units. Click on the Grid tab and select Rectangular. Select Major as Interval and Keep Grid Square. Select Snap Interval = 1 cm, Major Interval = 1 cm, Minor Style = Subdivisions, Minor Subdivisions = 5. Verify that the Grid Position and the Origin are 0 cm and 0 cm. Click on OK. Turn on Gridpoint Snap only. First select the Snap Off button to turn off the snap tools. Then select the Gridpoint Snap button to turn the Gridpoint Snap only. Only the two top buttons of the snap tools should be depressed. Gridpoint Snap Tool Click on the Rectangle tool and draw a box with the first corner coordinates at (3.00, 5.00) and the second corner coordinates at (18.00, 23.00). (Remember to look at the left dial display). Draw another box with the first corner coordinates at (5.00, 12.00) and the second corner coordinates at (16.00, 20.00). Now click on the Center, Side Circle. Move to coordinates (7.00, 10.00) and click. Then move to coordinates (7.00, 9.00) and click again. Draw another circle at coordinates (14.00, 10.00) and (15.00, 10.00). Now is a good time to save your drawing. Select File and then Save. The Save Drawing File dialog box appears. In the Filename box, enter your initials (or your partners) followed by number 3. For example, if your initials are SB, you would type SB3. Make sure you are in the Drawings folder. If you are not, click on the down arrow next to the Save In: box and select the Drawings folder. Then click on Save. Click on the Select Direct tool and select the inside box. Click on the Hatch tab of the Content Librarian. Use the scroll bar in the Content Librarian window to find the desired hatch style. When you find it, click, hold, and drag it and fill the inside box. Tech-Design by Lab-Volt 17

26 Using CAD Computer-Aided Design Click on the Line Single tool. In the left circle, draw a line that has starting coordinates of (7.00, 10.00) and ending coordinates of (6.00, 10.00). In the right circle, draw a line that has starting coordinates of (14.00, 10.00) and ending coordinates of (13.00, 10.00). Click on the Text Point tool. Move to coordinates (6.00, 8.00) and click. Type ON and press Enter. (Do not type the quotation marks). Now select the word ON using the Select Direct button and change the height of the text by entering 0.50 cm in the Text Height box that appears below the Menu bar. If you need to move the word, click, hold, and drag it so it is not covering the circle. Click on the Text Point tool. Move the cursor to coordinates (13.00, 8.00) and click. Type VOLUME and press Enter. Select the word and move it so it is not covering the circle. NOTE: Any time you make a mistake, click on Edit and then Undo. After the object is removed, you might notice that the area of the grid where the object was is also removed. You need to click on the Redraw button, which is on the All-In-One toolbar Click on the Text Point tool. Move to coordinates (9.00, 21.00) and click. Type TD COMPUTERS and press the Enter key. Select the words and move them so they are centered above the smaller box. Save your work by selecting File and then Save. Now add a border. The following steps will explain how to do this. Click on the down arrow that appears next to the Pattern button on the Property bar and click on None. Then click on the down arrow that appears next to the Width button and Select 3 pixel. Click on the Rectangle tool and draw a box at coordinates (1.00, 27.00) and (20.00, 1.00). Draw another box at coordinates (12.00, 4.00) and (20.00, 1.00). Click on the Line Single tool and draw a line at coordinates (12.00, 2.00) and (20.00, 2.00). You are ready to add the title and your name to your drawing. Type SPEAKER in the top box and your name and your partner s name in the bottom box. Use the Text Point tool. You may have to select the text and move it to where you would like it to appear in the box. When you are finished, select File and then Save to save your drawing. If you have extra time, you and your partner can design your own speaker. First click on File and then Close to close this drawing, then select File and then New to start all over. Follow the instructions above if you get stuck. Don t forget to save your new speaker. You can use your initials followed by the number When you are finished, select File and then Exit to exit AutoSketch. 18 Tech-Design by Lab-Volt

27 Computer-Aided Design Drawing a Floor Plan Designing a Bedroom Floor Plan (Imperial) In the Start Up dialog box, click on the Wizard tab. Then select Start Drawing Immediately. Click on OK. Turn on Gridpoint Snap only. From the Menu bar, select Tools and then click on Graphic Options. The Graphic Options dialog box appears. Click on the Layer tab. Click under the word Name. In the Layer Name box that is now highlighted, enter Walls (do not type quotation marks). Click on OK. You ll notice that Walls appears as the current layer on the Property bar. (If it does not, click on the down arrow to view the Layer drop-down list and click on Walls ). Walls Layer on Property Bar 6. Let s add some more layers. From the Menu bar, select Tools and then click on Graphic Options again Click on the Layer tab from the Graphic Options dialog box. Click on the New Layer button. In the Layer Name box, enter Furniture. Press the Enter key on the keyboard. Now click on the new layer button again and enter Dimensions in the Layer Name box and press the Enter key again. You now have three layers. Click on OK. You want the word Walls to appear as the Current Layer box on the Property bar. Click on the down arrow to view the Layer dropdown list and click on Walls if it is not there already. Save your work before you go any further. Click on File and then Save. Make sure you are saving your work in Drawings folder. If you are not in this folder, click on the down arrow that appears in the Save in: box. Click on the Drawing folder. In the Filename box, enter your initials (or your partner s), followed by New Layer Button FLPLN. For example, if your initials are SB, you would type SBFLPLN. Do not type the quotation marks. Click on Save. You are ready to start drawing your floor plan. Take turns with your partner drawing the different elements First you will draw the walls. Click on the Single Polyline tool in the All-In-One toolbar. You will be picking seven points for the polyline. Place your cursor at coordinates (1.00, 3.00) and click, then move to coordinates (1.00, 8.00) and click, move to coordinates (6.00, 8.00) and click, then to coordinates (6.00, 4.00) and click, and move to coordinates (3.00, 4.00) and click, then to coordinates (3.00, 3.00) and click, and finally to (1.00, 3.00) and click. Now right-click to complete the polyline. Tech-Design by Lab-Volt 19

28 Drawing a Floor Plan Computer-Aided Design NOTE: Any time you make a mistake, click on the Undo button (located on the Standard toolbar). After the object is removed, you might notice that the area of the grid where the object was is also removed. You need to click on the Redraw button, which is located on the All-In-One toolbar. Let s change the width of the walls. First select the walls by clicking on the Select Direct button then clicking on one of the lines in the polyline to select the walls. Now click on the down arrow that appears next to the Width button on the Property bar. Click on 3 pixel. Now let s draw the walls for the walk-in closet. Click on the Single Polyline button on the All-In-One toolbar. Move your cursor to coordinates (4.00, 8.00) and click, then move to (4.00, 6.50) and click, then move to (5.50, 6.50) and click. Right-click to complete the polyline. Time to add a bathroom. Make sure the Single Polyline button is still selected. Move to coordinates (4.00, 6.50) and click, move to (1.50, 6.50) and click. Right-click to complete the line. 19. Save your floor plan by selecting File then Save. AutoSketch will save your drawing using the filename you specified earlier You are ready to dimension your floor plan. You will do that in the dimension layer. Click on the down arrow next to the current layer and select Dimensions. Click on Draw from the Menu bar and select Dimension and then Horizontal. Move the cursor to coordinates (1.00, 1.50) and click. Then move to coordinates (6.00, 1.50) and click. Click on Draw then Dimension and finally on Vertical. Move to coordinates (6.25, 8.00) and click and then move to (6.25, 3.00) and click. Your dimensions are made. Click on the Zoom In button to see it better. Then click on the Zoom Out button to return to the original view. You will now add text to label the parts of the room. Click on the Text Point tool on the All-In-One toolbar. Place your cursor at coordinates (4.50, 6.75) and click. Type CLOSET and then press Enter. Click on the Text Point tool. Move your cursor to coordinates (1.50, 6.75) and click. Type BATHROOM and then press Enter. Click on the Text Point tool. Now move to coordinates (2.00, 4.25) and click. Type MASTER BEDROOM and press Enter. Horizontal and Vertical dimensions are needed for the closet and the master bathroom. Try to do these dimensions on your own. You ll notice after AutoSketch dimensioned the closet and the master bathroom that your floor plan became more difficult to work in. This is when the Layers feature comes in handy. If you wanted to, you could now view the walls without the dimensions by turning off the dimensions layer Click on Tools and then Graphic Options. Click on the Layer tab from the Graphic Options dialog box. Click on Walls from the list of layers and then click on the Set Current button. Now click on Dimensions from the layers list on the Graphics Options dialog box. Click on the light bulb to turn this layer off. Click OK. The dimensions are gone. Let s put the dimensions back on the drawing. To see the dimensions again, click on Tools and then Graphic Options. Click on the Layer tab. Click on dimensions and then click on the light bulb to turn the layer back on. Click OK and the dimensions are back. Now click on the down arrow next to the current layer and select Furniture. 32. Save your floor plan by selecting File and then Save. Select File and then Exit to exit AutoSketch. 20 Tech-Design by Lab-Volt

29 Computer-Aided Design Drawing a Floor Plan Designing a Bedroom Floor Plan (Metric) 1. In the Start Up dialog box, click on the Wizard tab. Then select Start Drawing Immediately. Click on OK. Proceed to step 3 if AutoSketch is already set up for metric drawings. Otherwise, follow step 2 directions Click on Tools and select Drawing Options. The Drawing Options dialog box will appear. Click on the Units tab. Select Centimeters under Length by clicking on the down arrow. Under Decimal Precision select Under Fractional Precision select 1 8. For the Area select Square Centimeters and for Decimal Precision select Select Metric for the Measurement System. Under Angle select Degrees; select 0.01 for Decimal Precision; select Standard (+CCW) for Orientation. Under Scalar Precision select Make sure the box next to Show Leading Zeros is checked and the Period is selected for Decimal Symbol. Make sure the box is checked next to Display Units. Click on the Grid tab and select Rectangular. Select Major as Interval and Keep Grid Square. Select Snap Interval = 1 cm, Major Interval = 1 cm, Minor Style = Subdivisions, Minor Subdivisions = 5. Verify that the Grid Position and the Origin are 0 cm and 0 cm. Click on OK. Turn on Gridpoint Snap only. From the Menu bar, select Tools and then click on Graphic Options. The Graphic Options dialog box appears. Click on the Layer tab. Click under the word Name. In the Layer Name box that is now highlighted, enter Walls (do not type quotation marks). Click on OK. You ll notice that Walls appears as the current layer on the Property bar. (If it does not, click on the down arrow to view the Layer drop-down list and click on Walls ). Walls Layer on Property Bar 7. Let s add some more layers. From the Menu bar, select Tools and then click on Graphic Options again Click on the Layer tab from the Graphic Options dialog box. Click on the New Layer button. In the Layer Name box, enter Furniture. Press the Enter key on the keyboard. Now click on the new layer button again and enter Dimensions in the Layer Name box and press the Enter key again. You now have three layers. Click on OK. You want the word walls to appear as the Current Layer box on the Property bar. Click on the down arrow to view the Layer dropdown list and click on walls if it is not there already. Save your work before you go any further. Click on File and then Save. Make sure you are saving your work in Drawings folder. If you are not in this folder, click on the down arrow that appears in the Save in: box. Click on the Drawing folder. In the Filename box, enter New Layer Button Tech-Design by Lab-Volt 21