Introduction To AutoCAD 2010

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Page 1Introduction to AutoCAD 2010Alf YarwoodChapter 7 Exercise 11. Open AutoCAD 2010 with a double-click on its shortcut icon in the Windows desktop.2. Open the template acadiso.dwt.3. Call the Polyline tool from the Home/Draw panel with a left-click on its tool icon.4. Set the Poyline width to 0.7 and construct the outline of the given front view on layer 0. Include the hiddenlines and centre lines with Polyline width set to 0.3.Note To draw the hidden detail and centre lines make the relevant layer the current layer.5. Add an end view to the left of the front view.6. Add the plan above the front view.7. Add all dimensions on the Dimensions layer.8. Add a border and title block.9. Save your drawing with the file name 7 Exercise01.dwg to your floppy disk.10. Left-click the Close button of the drawing window.Chapter 7 Exercise 21. Open acadiso.dwt - left-click New. in the Quick Access toolbar.2. Call the Polyline tool from the Home/Draw panel with a left-click on its tool icon.3. Set the Poyline width to 0.7 and construct the outline of the given front view on the layer 0. Include thehidden lines and centre lines with Polyline width set to 0.3 on the layers Hidden and Centre.4. Add an end view to the left of the front view.5. Add the plan above the front view.6. Add all dimensions working on the layer Dimensions.7. Add a border and title block, working on the layer Text.8. Save your drawing with the file name 7 Exercise02.dwg to your floppy disk.9. Left-click the Close button of the drawing window.Material accompanying Introduction to AutoCAD 2010, ISBN 978-1-85617-868-6. Copyright 2009, Alf Yarwood.Published by Elsevier Ltd. All rights reserved.

Page 2Chapter 7 Exercise 31. Open acadiso.dwt - left-click New. in the Quick Access toolbar.2. Set up an isometric drawing window:Command: enter snap right-clickSpecify snap spacing or [ON/OFF/Aspect/Rotate/Style/Type] 0 : enter s right-clickEnter snap grid style [Standard/Isometric] S : enter i right-clickSpecify vertical spacing 0 : enter 5 right-clickCommand:3. Toggle snap lines by pressing either F5 or Ctrl E.4. Construct the lines as shown using the Polyline tool - toggling isoplanes asneeded. At this stage it is best to have Ortho Mode set on.5. Set Isoplane Left and add ellipses as shown (these are isocircles):Command: ellipseSpecify axis endpoint of ellipse or [Arc/Center/Isocircle]:enter i right-clickSpecify center of isocircle: pickSpecify radius of isocircle or [Diameter]: enter 15 rightclickCommand:6. Draw tangential lines using the Polyline tool. Enter qua as the osnappoint when drawing these tangential lines.7. With the Trim tool trim unwanted detail.8. Save your drawing with the file name 7 Exercise03.dwg to your floppydisk.9. Left-click the Close button of the drawing window.Material accompanying Introduction to AutoCAD 2010, ISBN 978-1-85617-868-6. Copyright 2009, Alf Yarwood.Published by Elsevier Ltd. All rights reserved.

Page 3Chapter 7 Exercise 41. Open acadiso.dwt - left-click New. in the Quick Access toolbar.2. The drawing in answer to this exercise is shown below in a more elaborate border and title block than inprevious examples.3. Save your drawing with the file name 7 Exercise04.dwg to your floppy disk.4. Left-click the Close button of the drawing window.Chapter 7 Exercise 51. Open acadiso.dwt - left-click New. in the Quick Access toolbar.2. Set up an isometric drawing window.3. The isometric drawing constructed in answer to this exercise is given to theright.4. Save your drawing with the file name 7 Exercise05.dwg to your floppy disk.5. Left-click the Close button of the drawing window.Chapter 7 Exercise 61. Open acadiso.dwt - left-click New. in the Quick Access toolbar.2. Construct the three views using the tools Polyline (Widths 0.7 for the outlinesand 0.3 for hidden detail and centre lines), Fillet, Copy, Rotate, Circle andTrim. Copy and Rotate are used after constructing one of the slots in the front view and plan.3. Save your drawing with the file name 7 Exercise06.dwg to your floppy disk.4. Left-click the Close button of the drawing window.Material accompanying Introduction to AutoCAD 2010, ISBN 978-1-85617-868-6. Copyright 2009, AlfYarwood. Published by Elsevier Ltd. All rights reserved.

Page 4Chapter 7 Exercise 71. Open acadiso.dwt - left-click New. in the Quick Access toolbar.2. Set up the AutoCAD window for isometric drawing:Command: enter snap right-clickSpecify snap spacing or [ON/OFF/Aspect/Rotate/Style/Type] 5 : enter s right-clickEnter snap grid style [Standard/Isometric] S : enteri right-clickSpecify vertical spacing 5 : right-clickCommand:3. Construct the outlines of the drawing using the Polyline tool, adjustingthe isoplanes by pressing the F5 key.4. Add isometric circles to form the fillets at the corners of the bracketand trim to complete the fillets. At two fillets plines are drawn tangential to the trimmed fillets - make use of osnaps for this.5. Construct one of the slots for the base, using Polyline and isocircles.Trim unwanted parts and with Pedit form a single polyline for theslot. Then with Copy copy the slot to its two other positions.6. Repeat step 6 for the slots in the upright part of the drawing.Note: To draw an isocircle:Command: ellipseSpecify axis endpoint of ellipse or [Arc/Center/Isocircle]: enter i right-clickSpecify center of isocircle: pickSpecify radius of isocircle or [Diameter]: enter 10 rightclickCommand:7. Save your drawing with the file name 7 Exercise07.dwg.8. Left-click the Close button of the drawing window.Material accompanying Introduction to AutoCAD 2010, ISBN 978-1-85617-868-6. Copyright 2009, Alf Yarwood.Published by Elsevier Ltd. All rights reserved.

Page 5Chapter 7 Exercise 81. Open acadiso.dwt - left-click New. in the Quick Access toolbar.2. The third angle projection is given below.3. The first angle projection is given below.4. Save your drawing with the file name 7 Exercise08.dwg.5. Left-click the Close button of the drawing window.Chapter 7 Exercise 91. Open acadiso.dwt - left-click New. in the Quick Access toolbar.2. Enter snap at the command line and set up the AutoCAD window for the drawing of isometric views.3. Construct the base of the drawing using the Polyline and Ellipse tools. Before using the Ellipse tool set theset variable PELLIPSE to 1 in order to be able to trim unwanted parts of the ellipses.Material accompanying Introduction to AutoCAD 2010, ISBN 978-1-85617-868-6. Copyright 2009, Alf Yarwood.Published by Elsevier Ltd. All rights reserved.

Page 64. Care is needed to ensure the axes of the part ellipses forming the R5 fillets and the upper part of the base areof the correct size.5. Construct other details of the drawing using the Polyline and Ellipse tools.6. Save your drawing with the file name 7 Exercise09.dwg.7. Left-click the Close button of the drawing window.Additional exercises1. The drawing shows a three-view first angleorthographic projection of a bracket. Constructan isometric drawing of the bracket.Material accompanying Introduction to AutoCAD 2010, ISBN 978-1-85617-868-6. Copyright 2009, Alf Yarwood.Published by Elsevier Ltd. All rights reserved.

Page 72. The drawing shows a two-view first angleprojection of the pointer.Construct a third angle projection of the pointerto a scale of 1:1, with the front view in section.The section plane is to be central to the plan.3. The given drawing is a two-view first angleprojection of a tray from a drilling machine.Construct a two-view third angle projection ofthe tray to include a sectional front view, thesection plane to be central to the plan.4. The main drawing is a three-view firstangle projection of a fork connector.Construct a fully dimensioned threeview third angle projection of the connector which includes a sectional endview with the section plane central tothe front view.The smaller drawing is a two-view orthographic projection of a pin and awasher for fitting over the end of the pin.Include views of the pin with its washerin position fitted in the vertical holes ofthe connector.Material accompanying Introduction to AutoCAD 2010, ISBN 978-1-85617-868-6. Copyright 2009, AlfYarwood. Published by Elsevier Ltd. All rights reserved.

Page 85. Construct an isometric drawing of theconnector shown in the drawing forexercise 4. Include an isometric drawingof the pin placed in position and its washer.6. The given drawing is a two-view first angleorthographic projection of a stop from aplaning machine stop. Construct a fullscale isometric drawing of the stop.Multiple choice questions1. In first angle orthographic projection an end view is:(a) Always placed to the right of the front view(b) Viewed from the one side and placed on the other side of the front view(c) Always placed to the left of the front view(d) Placed either side of the front view irrespective of the viewing position2. In third angle orthographic projection a plan is:(a) Placed either above or below the front view depending upon whether the viewing is from above orbelow(b) Always placed above the front view(c) Always placed below the front view(d) Placed either above or below no matter which viewing direction is chosen3. Isometric drawing is:(a) A true 3D (three-dimensional) pictorial view of the object being drawn(b) A 2D (two-dimensional) pictorial view of the object(c) An accurate perspective drawing of the object(d) None of the items a, b or c4. If a layer is locked:(a) Details can be added to a locked layer(b) Details can be erased from a locked layer(c) Details cannot be added or erased from a locked layer(d) Details can be added to a locked layer but they disappear when the drawing file is savedMaterial accompanying Introduction to AutoCAD 2010, ISBN 978-1-85617-868-6. Copyright 2009, Alf Yarwood.Published by Elsevier Ltd. All rights reserved.

Page 95. When a layer is turned off:(a) File space is saved when saving the file(b) It makes no real difference. Details can still be added to the layer(c) Details cannot be erased from the layer(d) Details on the layer cannot be seenMaterial accompanying Introduction to AutoCAD 2010, ISBN 978-1-85617-868-6. Copyright 2009, Alf Yarwood.Published by Elsevier Ltd. All rights reserved.

Construct an isometric drawing of the connector shown in the drawing for exercise 4. Include an isometric drawing of the pin placed in position and its washer. 6. The given drawing is a two-view first angle orthographic projection of a stop from a planing machine stop. Construct a full scale isometric drawing of the stop. Multiple choice .

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