Tài liệu Introduction to AutoCAD 2009 2D and 3D Design- P3 ppt

Introduction to AutoCad 2009 CHAPTER 4 88 Another template A template A3_template.dwt – Fig. 4.24 In the Select Template dialog a click on any of the fi le names causes a preview of the template to appear in the Preview box of the dialog, unless the template is free of information – as is acadiso.dwt . To construct another template which includes a title block and other information based on the acadiso.dwt template, proceed as follows: 1. In an acadiso.dwt template construct the required border, title block. 2. Click the Layout1 button ( Fig. 4.23 ). The screen changes to a Paper Space setting. Fig. 4.23 The Model or Paper space button Fig. 4.24 The A3_template.dwt 3. Zoom to Extents . 4. It is suggested this template be saved as a Paper Space template with the name A3_template.dwt . N o t e 1. The outline for this template is a pline from 0,290 to 420,290 to 420,0 to 0,0 to 290,0 and of width 0.5 . 2. The upper line of the title block is a pline from 0,20 to 420,20 . 3 . Paper Space is two-dimensional. 4. Further uses for Layouts and Pspace are given in Chapter 15 . Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Zoom, Pan and templates CHAPTER 4 89 The AutoCAD Classic workspace It should be noted that any of the drawings described throughout Part 1: 2D Design of this book could equally well have been constructed in the AutoCAD Classic workspace as in the 2D Drafting & Annotation workspace. Tools could, as well, be selected in the toolbars: Draw – docked left, Modify – docked right and Standard – docked top, as can be seen in Fig. 4.25 . Fig. 4.25 The AutoCAD Classic workspace REVISION NOTES 1. The Zoom tools are important in that they allow even the smallest parts of drawings to be examined and, if necessary, amended or modifi ed. 2. The Zoom tools can be called with a click on the Zoom icon in the Home/Utilities panel, clicking the Zoom button in the status bar, from the Zoom toolbar, from the sub-menu of the View drop-down menu, or by entering z or zoom at the command line. The easiest is to enter z at the command line followed by a right-click . 3. There are fi ve methods of calling tools for use: selecting a tool icon in a panel from a group of panels shown as tabs in the Ribbon ; selecting a tool from a toolbar; entering the name of a tool in full at the command line; entering an abbreviation for a tool; selecting a tool from a drop-down menu. 4. When constructing large drawings, the Pan tool and the Aerial View window are of value for allowing work to be carried out in any part of a drawing, while showing the whole drawing in the Aerial View window. 5. An A3 sheet of paper is 420 mm by 297mm. If a drawing constructed in the template acadiso.dwt described in this book, is printed/plotted full size (scale 1:1), each unit in the drawing will be 1 mm in the print/plot. 6. When limits are set it is essential to call Zoom followed by a (All) to ensure that the limits of the drawing area are as set. 7. If the right-click menu appears when using tools, the menu can be aborted if required by setting the SHORTCUTMENU variable to 0 . Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Introduction to AutoCad 2009 90 Exercises If you have saved drawings constructed either by following the worked examples in this book or by answering exercises in Chapters 2 and 3, open some of them and practise zooms and pans. CHAPTER 4 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. 91 The Modify tools AIM OF THIS CHAPTER The aim of this chapter is to describe the uses of tools for modifying parts of drawings. Chapter 5 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Introduction to AutoCad 2009 CHAPTER 5 92 Introduction The Modify tools are among those most frequently used. The tools are found in the Home/Modify panel. A click on the arrow in the Home/ Modify panel brings down a further set of tool icons ( Fig. 5.1 ). They can also be selected from the Modify toolbar ( Fig. 5.2 ) or from the Modify drop-down menu. Using the Erase tool from Home/Modify was described in Chapter 2. Examples of tools other than the Explode follow. See also Chapter 10 for Explode . Fig. 5.1 The Modify tool icons in the Home / Modify panel Fig. 5.2 The Modify toolbar Fig. 5.3 First example – Copy Object – outlines T h e Copy tool First example – Copy ( Fig. 5.5 ) 1. Construct Fig. 5.3 using Polyline . Do not include the dimensions. 2. Call the Copy tool – left-click on its tool icon in the Home/Modify panel ( Fig. 5.4 ), pick Copy from the Modify toolbar, or enter cp or copy at the command line. The command line shows: Command: _copy Select objects: pick the cross 1 found Select objects: right-click Current settings: Copy mode ϭ Multiple Specify base point or [Displacement/mode/Multiple] Ͻ Displacement Ͼ : pick Specify second point or Ͻ use first point as displacement Ͼ : pick The result is given in Fig. 5.5 . Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. The Modify tools CHAPTER 5 93 Second example – Copy – Multiple copy ( Fig. 5.6 ) 1. Erase the copied object. 2. Call the Copy tool. The command line shows: Command: _copy Select objects: pick the cross 1 found Select objects: right-click Current settings: Copy mode ϭ Multiple Specify base point or [Displacement/mode] Ͻ Displacement Ͼ : pick Specify second point or Ͻ use first point as displacement Ͼ : pick Specify second point or [Exit/Undo] Ͻ Exit Ͼ : pick Specify second point or [Exit/Undo] Ͻ Exit Ͼ : pick Specify second point or [Exit/Undo] Ͻ Exit Ͼ : e (Exit) Command : The result is shown in Fig. 5.6 . Fig. 5.4 The Copy tool from the Home / Modify panel Fig. 5.5 First example – Copy Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Introduction to AutoCad 2009 CHAPTER 5 94 T h e Mirror tool First example – Mirror ( Fig. 5.9 ) 1. Construct the outline shown in Fig. 5.8 using the Line and Arc tools. 2. Call the Mirror tool – left-click on its tool icon in the Home/Modify panel ( Fig. 5.7 ), pick the Mirror tool icon from the Modify toolbar, pick Mirror from the Modify drop-down menu, or enter mi or mirror at the command line. The command line shows: Command: _mirror Select objects: pick first corner Specify opposite corner: pick 7 found Select objects: right-click Specify first point of mirror line: end of pick Specify second point of mirror line: end of pick Erase source objects [Yes/No] Ͻ N Ͼ : right-click Command: The result is shown in Fig. 5.9 . Fig. 5.7 The Mirror tool from the Modify toolbar Fig. 5.6 Second example – Copy – Mutiple – Multiple copy Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. The Modify tools CHAPTER 5 95 Second example – Mirror ( Fig. 5.10 ) 1. Construct the outline shown in the dimensioned polyline in the upper drawing of Fig. 5.10 . 2. Call Mirror and using the tool three times complete the given outline. The two points shown in Fig. 5.10 are to mirror the right-hand side of the outline. Fig. 5.8 First example – Mirror – outline Fig. 5.9 First example – Mirror Fig. 5.10 Second example – Mirror Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Introduction to AutoCad 2009 CHAPTER 5 96 Third example – Mirror ( Fig. 5.11 ) If text is involved when using the Mirror tool, the set variable MIRRTEXT must be set correctly. To set the variable: Command: mirrtext Enter new value for MIRRTEXT Ͻ 1 Ͼ : 0 Command: If set to 0 text will mirror without distortion. If set to 1 text will read backwards as indicated in Fig. 5.11 . T h e O set tool Examples – O set ( Fig. 5.14 ) 1. Construct the four outlines shown in Fig. 5.13 . 2. Call the Offset tool – left-click its tool icon in the Home/Modify panel ( Fig. 5.12 ), pick the tool from the Modify toolbar, pick the tool name in the Modify drop-down menu, or enter o or offset at the command line. The command line shows: Fig. 5.12 The Offset tool from the Home / Modify panel Fig. 5.11 Third example – Mirror Command: _offset Current settings: Erase source ϭ No Layer ϭ Source OFFSETGAPTYPE ϭ 0 Specify offset distance or [Through/Erase/Layer] Ͻ Through Ͼ : 10 Select object to offset or [Exit/Undo] Ͻ Exit Ͼ : pick drawing 1 Specify point on side to offset or [Exit/Multiple/ Undo] Ͻ Exit Ͼ : pick inside the rectangle Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. The Modify tools CHAPTER 5 97 Select object to offset or [Exit/Undo] Ͻ Exit Ͼ : e (Exit) Command: 3. Repeat for drawings 2 , 3 and 4 in Fig. 5.13 as shown in Fig. 5.14 . Fig. 5.13 Examples – Offset – outlines Fig. 5.14 Examples – Offset T h e Array tool Arrays can be either in a Rectangular form or in a Polar form as shown in the examples below. First example – Rectangular Array ( Fig. 5.17 ) 1. Construct the drawing as shown in Fig. 5.15 . 2. Call the Array tool – either click Array in the Modify drop-down menu ( Fig. 5.16 ), from the Home/Modify panel, pick the Array tool icon from the Modify toolbar, or enter ar or array at the command line. The Array dialog appears ( Fig. 5.17 ). 3. Make settings in the dialog: ● Rectangular Array radio button set on (dot in button) ● Row fi eld – enter 5 Fig. 5.15 First example – Array – drawing to be arrayed Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. [...]... objects to join to source: pick a pline 1 found Select objects to join to source: pick another 1 found, 2 total Select objects to join to source: pick another 1 found, 3 total Select objects to join to source: right-click 3 segments added to polyline Command: right-click JOIN Select source object: pick one of the lines Select lines to join to source: pick the other 1 found Select lines to join to source:... Command: The result is given in Fig 5.25 Fig 5.23 Example – Move – drawing Fig 5.24 The Move tool from the Home/Modify toolbar Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark 101 CHAPTER 5 The Modify tools Introduction to AutoCad 2009 CHAPTER 5 102 Fig 5.25 Example – Move The Rotate tool When using the Rotate tool remember the default rotation of objects within AutoCAD 2009. .. www.verypdf.com to remove this watermark 109 CHAPTER 5 The Modify tools CHAPTER 5 110 Introduction to AutoCad 2009 2 Call the Join tool – click the Join tool icon in the Home/Modify panel (Fig 5.37), left-click its tool icon in the Modify toolbar, select Join from the Modify drop-down menu or enter join or j at the command line The command line shows: Fig 5.37 The Join tool icon from the Home/Modify panel Command:... www.verypdf.com to remove this watermark CHAPTER 5 100 Introduction to AutoCad 2009 3 Click the Select objects button of the dialog and window the drawing The dialog returns to screen Click the Pick center point button (Fig 5.21) and when the dialog disappears, pick a center point for the array 4 The dialog reappears Click its Preview Ͻ button The array appears and the command line shows: Pick or press Esc to. .. AutoCAD 2009 is counterclockwise This applies to the use of the Break tool The Join tool The Join tool can be used to join plines provided their ends are touching; to join lines which are in line with each other; to join arcs and convert arcs to circles Examples – Join (Fig 5.38) 1 Construct a rectangle from four separate plines – drawing 1 of Fig 5.38; construct two lines – drawing 2 of Fig 5.38 and. .. Modify tools Introduction to AutoCad 2009 Command: _scale Select objects: window drawing 2 5 found Select objects: right-click Specify base point: pick Specify scale factor or [Copy/Reference] Ͻ1Ͼ: 0.75 Command: CHAPTER 5 104 3 Repeat for the other two drawings 3 and 4 scaling to the scales given with the drawings The results are shown in Fig 5.29 Fig 5.29 Examples – Scale The Trim tool This tool is... www.verypdf.com to remove this watermark Select second line or shift-select to apply corner: pick Command: The other two rectangles are chamfered in a similar manner except that the No trim prompt is brought into operation with the bottom left-hand example Fig 5.44 Examples – Chamfer REVISION NOTES 1 The Modify tools are among the most frequently used tools in AutoCAD 2009 2 The abbreviations for the Modify tools... shift-select to apply corner: pick Command: Three examples are given in Fig 5.42 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark 113 CHAPTER 5 The Modify tools Introduction to AutoCad 2009 CHAPTER 5 114 Fig 5.42 Examples – Fillet Examples – Chamfer (Fig 5.44) 1 Construct three rectangles 100 by 60 using either the Line or the Polyline tool 2 Call Chamfer – click the arrow to the... times to give drawings 2, 3 and 4 2 Call Scale – left-click its tool icon in the Home/Draw panel (Fig 5.28), pick its tool icon in the Modify toolbar, pick Scale from the Modify drop-down-menu or, click its tool in the Modify toolbar or, enter sc or scale at the command line which then shows: Fig 5.28 The Scale tool icon from the Home/Modify toolbar Please purchase PDF Split-Merge on www.verypdf.com to. .. the trims at the left-hand end of the drawing 5 Repeat for the right-hand end The final result is shown in the drawing labelled Result in Fig 5.31 Fig 5.31 First example – Trim Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark 105 CHAPTER 5 The Modify tools Introduction to AutoCad 2009 Second example – Trim (Fig 5.32) CHAPTER 5 106 1 Construct the left-hand drawing of Fig 5.32 . www.verypdf.com to remove this watermark. Introduction to AutoCad 2009 CHAPTER 5 92 Introduction The Modify tools are among those most frequently used. The tools. www.verypdf.com to remove this watermark. Introduction to AutoCad 2009 CHAPTER 5 100 3. Click the Select objects button of the dialog and window the drawing.