{"id":1650,"date":"2021-03-09T15:38:44","date_gmt":"2021-03-09T20:38:44","guid":{"rendered":"https:\/\/opentextbc.ca\/autocad2d\/chapter\/hatching\/"},"modified":"2021-11-03T16:46:33","modified_gmt":"2021-11-03T20:46:33","slug":"hatching","status":"publish","type":"chapter","link":"https:\/\/opentextbc.ca\/autocad2d\/chapter\/hatching\/","title":{"raw":"Module 32: Hatching","rendered":"Module 32: Hatching"},"content":{"raw":"
\n

Learning Outcomes<\/p>\n\n<\/header>\n

\n\nWhen you have completed this module, you will be able to:\n
    \n \t
  1. Describe crosshatching, hatching boundaries, hatching patterns, and associative and nonassociative hatching.<\/li>\n \t
  2. Explain sectional views, sections, and hatching in sectional views.<\/li>\n \t
  3. Apply the HATCH and HATCHEDIT commands to insert and edit crosshatching patterns.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n

    Crosshatching<\/h1>\nMany drawings require areas to be filled with a pattern. This is called crosshatching<\/span> <\/em>or just hatching<\/em><\/span>. There are many uses for hatch patterns on a drawing including displaying an object's material type, the solid material that was cut through in the sectional view, difference materials used in one area to another, plus many other applications.\n

    Hatching Boundaries<\/h2>\nThe HATCH command is used to insert hatch patterns. It allows you to select two different methods of selecting the boundary of the area to be filled in with the hatch pattern. The first method is picking an internal point and allow the HATCH command to find an enclosed boundary and the second method involves using an existing closed polyline to define the hatching boundary. The first method works well most of the time but for more complicated drawings, the second method must be used.\n

    Hatching Patterns<\/h2>\nThere are many predefined hatch patterns including ANSI standards, ISO standards, and a solid fill pattern that are part of AutoCAD's software. All hatch patterns are constructed using lines but hatch patterns are inserted as a single drawing object. This helps them to be easily manipulated and also keeps the drawing's database small. A hatching pattern can be exploded, using the EXPLODE command, to convert it to individual lines.\n

    Associative Verses Nonassociative Hatching<\/h2>\nAn associative hatch <\/em><\/span>will automatically adjust when the boundary, that was used to create it, is moved or changed. A nonassociative hatch<\/span> <\/em>remains the same size and in the same location regardless of the changes made to the hatch's boundary. An associative hatch is the default in the HATCH command.\n\nAn associative hatch can be changed to a nonassociative hatch by changing the properties of the object with the Properties window or with the HATCHEDIT command. A nonassociative hatch can never be changed to a associative hatch. It would have to be deleted and reinserted.\n
    \n

    AutoCAD Command: HATCH<\/p>\n\n<\/header>\n

    \n\nThe HATCH command is used to insert a hatch pattern.\n\nShortcut: H<\/strong>\n\n[caption id=\"attachment_1580\" align=\"aligncenter\" width=\"693\"]\"\" Draw Toolbar[\/caption]\n\n[caption id=\"attachment_1580\" align=\"aligncenter\" width=\"184\"]\"\" Draw Pull-down[\/caption]\n\n[caption id=\"attachment_1580\" align=\"aligncenter\" width=\"234\"]\"\" Home Ribbon[\/caption]\n\n<\/div>\n<\/div>\n
    \n

    AutoCAD Command: HATCHEDIT<\/p>\n\n<\/header>\n

    \n\nThe HATCHEDIT command is used to edit an existing hatch pattern.\n\nShortcut: none<\/strong>\n\n[caption id=\"attachment_1583\" align=\"aligncenter\" width=\"259\"]\"\" Modify II Toolbar[\/caption]\n\n[caption id=\"attachment_1583\" align=\"aligncenter\" width=\"286\"]\"\" Modify Pull-down[\/caption]\n\n[caption id=\"attachment_1583\" align=\"aligncenter\" width=\"366\"]\"\" Home Ribbon[\/caption]\n\n<\/div>\n<\/div>\n

    Drafting Lesson: Cross Sections - Part 1<\/h1>\nWhen a view of an object requires a clearer description of its interior or it is hard to dimension because of the hidden lines, a cross section view can be drawn in place of the normal multiview. See Figure 32-1\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"219\"]\"\" Figure 32-1
    Normal Front and Right Side View of an Object[\/caption]\n\nA cross section <\/em><\/span>view, also called a section<\/em><\/span>, is a view of the object as if it were cut along a cutting plane and the two pieces pulled apart exposing the inside of the object. See Figure 32-2 and 32-4.\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"334\"]\"\" Figure 32-2
    A Front view and Right Side Section View[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"277\"]\"\" Figure 32-3
    3D Model of the Object Showing the Cutting Plane Line[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"224\"]\"\" Figure 32-4
    3D Model of the Object Showing it Cut on the Cutting Plane Line[\/caption]\n\nA cutting plane <\/em><\/span>line is the line along the object where the cut would have been made. See Figure 32-2 and 32-3. The arrows point in the direction that you are looking when drawing the section view. The surfaces of the object that are solid, when cut, are crosshatched.\n

    WORKALONG: Inserting Hatch Patterns<\/h1>\n

    Step 1<\/h2>\nStart a new drawing using the template: 2D Layout English<\/span>.\n

    Step 2<\/h2>\nSave and name the drawing: AutoCAD 2D Workalong 32-1<\/span>.\n

    Step 3<\/h2>\nEnter the HATCH command. It will open the Hatch and Gradient dialogue box. The More\/Less icon, in the bottom right corner of the dialogue box, is used to open or close the advanced portion of the dialogue box. (Figure Step 3)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"600\"]\"\" Figure Step 3[\/caption]\n\n
    MUST KNOW:<\/strong> A hatch object is constructed using lines but acts as a single drawing object. This helps you manipulate the hatch object and also keeps your drawing's database small. A hatch object can be exploded into individual line objects with the EXPLODE command. If exploded, its associativity will be lost.<\/div>\n

    Step 4<\/h2>\nOpen drawing: AutoCAD 2D Workalong 30-1<\/span>. Using the SAVEAS command, save and name the drawing: AutoCAD 2D Workalong 32-1<\/span>. (Figure Step 4)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"267\"]\"\" Figure Step 4[\/caption]\n

    Step 5<\/h2>\nUsing the ROTATE command, rotate the diamond 45 degrees, using its center as the base point, to change it to a square. (Figure Step 5)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"210\"]\"\" Figure Step 5[\/caption]\n

    Step 6<\/h2>\nUsing the COPY command, copy the bottom object three times locating them by eye. Align the copies and center them using what you have learned to this point in the book. Their exact location is not important for this exercise but ensure that they are aligned.\n

    Step 7<\/h2>\nErase the 6 regular polygons above the rectangles. On layer: Text<\/span>, using the DTEXT command, add the text in each copy. Use the text style: 2D Modules<\/span> at a height of 0.25. Your drawing should appear similar to the figure. (Figure Step 7)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"467\"]\"\" Figure Step 7[\/caption]\n

    Step 8<\/h2>\nSet the current layer to layer: Hatch<\/span>. Enter the HATCH command. In the Hatch and Gradient dialogue box, set the Type and pattern to ANSI31. In the Angle and scale box, set the Angle to 0 and the Scale to 1. (Figure Step 8A and 8B)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"279\"]\"\" Figure Step 8A[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"279\"]\"\" Figure Step 8B[\/caption]\n

    Step 9<\/h2>\nIn the Options box, ensure that Associative is enabled. (Figure Step 9)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"176\"]\"\" Figure Step 9[\/caption]\n\n
    \n\nAUTHOR'S COMMENTS: <\/strong>When a hatch pattern is created as an associative, it will automatically adjust when the boundary, that was used when it was created, is moved or changed. A nonassociative hatch remains the same size and in the same location regardless of the changes made to the hatch's boundary.\n\n<\/div>\n

    Step 10<\/h2>\nIn the Boundaries box, click the Add Pick points icon and then pick the point P1 in Part A as shown in the figure. The hatch pattern will hatch the ellipse, without hatching over the text. (Figure Step 10A, 10B, and 10C)\n\n \n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"187\"]\"\" Figure Step 10 A[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"600\"]\"\" Figure Step 10B\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Figure Step 10C[\/caption]\n\n
    \n\nAUTHOR'S COMMENTS: <\/strong>The area to be hatched can be hatched using either the Pick Point method or the Select Object method. They will produce very different results and are used for different purposes as you will see as you work your way through this module.\n\n<\/div>\n

    Step 11<\/h2>\nClick OK to complete the command.\n

    Step 12<\/h2>\nEnter the HATCH command again. In the Hatch dialogue box, set the Pattern to ANSI31, the Angle to 45 degrees and the Scale to 0.5. (Figure step 12)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"279\"]\"\" Figure Step 12[\/caption]\n

    Step 13<\/h2>\nClick the Add Select objects icon and when prompted, select the ellipse in Part B as shown in the figure. The hatch pattern will ignore everything inside the object as you can see in the figure. (Figure Step 13A, 13B, and 13C)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"183\"]\"\" Figure Step 13A[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"670\"]\"\" Figure Step 13B\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Figure Step 13C[\/caption]\n

    Step 14<\/h2>\nEnter the HATCH command. Click the ... icon at the end of the Pattern box. This will open the Hatch Pattern Palette dialogue box. Select the AR-HBONE pattern. (Figure Step 14A and 14B)\n\n \n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"308\"]\"\" Figure Step 14A[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"388\"]\"\" Figure Step 14B[\/caption]\n

    Step 15<\/h2>\nWith the AR-HBONE pattern selected, set the Angle to 0 and the Scale to 0.01. (Figure Step 15)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"279\"]\"\" Figure Step 15[\/caption]\n

    Step 16<\/h2>\nUsing what you just learned, insert the hatching patterns in Part A using the Select Object method. Use the following specifications: (Figure Step 16)\n\nTriangle - Pattern Hr-HBone\n\nAngle - 0 Scale - 0.1\n\nSquare - Pattern Honey\n\nAngle - 0 Scale - 0.5\n\nHexagon - Pattern Gravel\n\nAngle - 0 Scale - 0.25\n\n8 Sided Polygon - Pattern Solid, Angle N\/A - Scale - N\/A\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"503\"]\"\" Figure Step 16[\/caption]\n

    Step 17<\/h2>\nOn layer: Object<\/span>, draw a 1 inch diameter circle in the center of the ellipses in Part C and Part D. (Figure Step 17)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"600\"]\"\" Figure Step 17[\/caption]\n

    Step 18<\/h2>\nEnter the HATCH command. Ensure that the Islands box is set to Normal as shown in the figure. Set the Types and pattern to Stars, the Angle to 0 and Scale to 0.5. (Figure Step 18A and 18B)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"278\"]\"\" Figure Step 18A[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"279\"]\"\" Figure Step 18B[\/caption]\n

    Step 19<\/h2>\nClick the Add Pick points icon. In Part C, select inside the rectangle as shown by P4. Part C should hatch as shown in the figure. (Figure Step 19A and 19B)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"643\"]\"\" Figure Step 19A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Figure Step 19B[\/caption]\n\n
    AUTHOR'S COMMENTS: <\/strong>When the Islands display style is set to Normal, the hatching pattern will hatch every other island.<\/div>\n

    Step 20<\/h2>\nEnter the HATCH command and set the Islands display style to Ignore<\/span>. (Figure Step 20)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"269\"]\"\" Figure Step 20[\/caption]\n

    Step 21<\/h2>\nClick the Add Pick points icon and select the location P5 in Part D. (Figure Step 21A and 21B)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"668\"]\"\" Figure Step 21A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Figure Step 21B[\/caption]\n\n
    AUTHOR'S COMMENTS: <\/strong> Note how all islands are ignored.<\/div>\n

    Step 22<\/h2>\nYour completed drawing should match the figure. (Figure Step 22)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"674\"]\"\" Figure Step 22[\/caption]\n

    Step 23<\/h2>\nSave and close the drawing.\n
    \n\nMUST KNOW:<\/strong> The FILL command controls the fill of a hatching pattern plus other feature in AutoCAD. If toggled off, hatch patterns will not appear on the drawing. This can help you work faster since the drawing regenerates faster. Do not forget to turn the FILL on when finished. The REGEN command must be executed to display the current fillmode after the FILL command has been executed.\n\n\"\"\n\n<\/div>\n

    WORKALONG: Using the HATCHEDIT Command<\/h1>\n

    Step 1<\/h2>\nOpen the drawing: AutoCAD 2D Workalong 32-1<\/span>. Using the SAVEAS command, save and name the drawing: AutoCAD 2D Workalong 32-2<\/span>. (Figure Step 1)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"674\"]\"\" Figure Step 1[\/caption]\n

    Step 2<\/h2>\nEnter the HATCHEDIT command, as shown below. (Figure Step 2)\n\nCommand: HATCHEDIT<\/strong>\n\nSelect hatch object: P1<\/strong>\n\n(Select the hatching pattern inside the ellipse of PART A. This will open the Hatch Edit dialogue box.)<\/em><\/span>\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"335\"]\"\" Figure Step 2[\/caption]\n

    Step 3<\/h2>\nIn the Angle and scale box change the Angle to 135 and the Scale to 2 as shown in Figure Step 3A. Click OK. Notice the change to the hatching pattern. (Figure Step 3A and 3B)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"279\"]\"\" Figure Step 3A[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"336\"]\"\" Figure Step 3B[\/caption]\n

    Step 4<\/h2>\nTo edit the hatching pattern for Part B, double click the pattern to open the Hatchedit dialogue box. On the pull-down list for Pattern, select Net. (Figure Step 4A and 4B)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"299\"]\"\" Figure Step 4A[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"336\"]\"\" Figure Step 4B[\/caption]\n

    Step 5<\/h2>\nIn the Angle and scale box, change the Angle to 0 and the Scale to 3. Click OK. Note the change to the hatching pattern. (Figure Step 5A and 5B)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"279\"]\"\" Figure Step 5A[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"300\"]\"\" Figure Step 5B[\/caption]\n

    Step 6<\/h2>\nDelete the hatch in Part D. (Figure Step 6)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"300\"]\"\" Figure Step 6[\/caption]\n

    Step 7<\/h2>\nEnter the HATCH command and click the Inherit Properties icon. Select the Net hatch pattern in Part B. With the paint brush graphic cursor, select inside the ellipse in Part D. (Figure Step 7A, 7B, 7C, and 7D)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"131\"]\"\" Figure Step 7A[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"286\"]\"\" Figure Step 7B[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"302\"]\"\" Figure Step 7C[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"610\"]\"\" Figure Step 7D[\/caption]\n

    Step 8<\/h2>\nEnter the commands shown below. Note how the hatching patterns will not display when Fill is Off and display when it is On. (Figure Step 8A and 8B)\n\nCommand: FILL<\/strong>\n\nEnter mode [ON\/OFF] <ON>: OFF<\/strong>\n\nCommand: REGEN <\/strong>\n\nRegenerating model.\n\nCommand: FILL<\/strong>\n\nEnter mode [ON\/OFF] <OFF>: ON<\/strong>\n\nCommand: REGEN<\/strong>\n\nRegenerating model. Command\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"391\"]\"\" Figure Step 8A[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"392\"]\"\" Figure Step 8B[\/caption]\n\n
    AUTHOR'S COMMENTS: <\/strong> To speed drawing regeneration, turn Fill off and on while you are working on the drawing. Turn it on when you complete the drawing and are ready to plot.<\/div>\n

    Key Principles<\/h1>\n
    \n

    Key Principles in Module 32<\/p>\n\n<\/header>\n

    \n
      \n \t
    1. When using the Select object method to hatch, a closed polyline must be created before executing the HATCH command. Since a circle, rectangle, or an ellipse are closed objects, they can be used as a closed polyline.<\/li>\n \t
    2. All hatch patterns are constructed using lines but the hatch pattern is created as a single object in the drawing. This helps to manipulate the hatch patterns and keep the drawing's database smaller. A hatching pattern can be exploded back into its individual line objects using the EXPLODE command.<\/li>\n \t
    3. An associative hatch will automatically adjust when the boundary, that was used when it was created, is moved or changed. A nonassociative hatch remains the same size and in the same location regardless of the changes made to the hatch boundary.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n

      Lab Exercise 32-1<\/h1>\nTime allowed: 40 minutes.\n\n\n\n\n
      Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
      AutoCAD 2D Lab 32-1<\/td>\n2D Layout English<\/td>\nInches<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Step 1<\/h2>\nOn layer: Object<\/span>, draw the top and front views of the object shown in figures. (Figure Step 1)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"600\"]\"\" Figure Step 1[\/caption]\n

      Step 2<\/h2>\nUse the spacing between views as shown in the figure. (Figure Step 2)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"361\"]\"\" Figure Step 2
      Top and Front View Locations[\/caption]\n

      Step 3<\/h2>\nOn the Front view, add the full cross section. The cutting plane line is shown in Figure Step 3A. On layer: Hatch<\/span>, insert the cross hatching pattern using the pattern ANSI31. Select an appropriate scale. (Figure Step 3A and 3B)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"330\"]\"\" Figure Step 3A[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"280\"]\"\" Figure Step 3B
      Completed Drawing[\/caption]\n\n
      AUTHOR'S CONSTRUCTION HINTS: <\/strong> Do your best to complete the lab exercise drawing without using the following hints. If you get stuck and cannot complete it on your own, use the following hints to help you.<\/div>\n

      Hint 1<\/h2>\nIf you have trouble visualizing the object and the section view you have to draw, study the solid models of the object shown below. The solid modeling views were done using AutoCAD. Solid Modeling is taught in the AutoCAD 3D book.\n\n \n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"299\"]\"\" Solid Model Isometric View[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"357\"]\"\" Solid Model Sliced on Cutting Plane Line[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"339\"]\"\"
      Solid Model View from Bottom[\/caption]\n

      Lab Exercise 32-2<\/h1>\nTime allowed: 50 minutes.\n\n\n\n\n
      Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
      AutoCAD 2D Lab 32-2<\/td>\n2D Layout English<\/td>\nInches<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Step 1<\/h2>\nOn layer: Object<\/span>, draw the Front and Right Side views of the figure. Draw the Right Side view as a full section. (Figure Step 1A, 1B, and 1C)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"287\"]\"\" Figure Step 1A
      Location of the Views[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"600\"]\"\" Figure Step 1B[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"600\"]\"\" Figure Step 1C
      Detail of Gear Teeth[\/caption]\n

      Step 2<\/h2>\nOn layer: Hatch<\/span>, insert the cross hatching pattern using the pattern ANSI32 at a scale of 0.5. (Figure Step 2)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"600\"]\"\" Figure Step 2[\/caption]\n\n
      AUTHOR'S CONSTRUCTION HINTS: <\/strong> Do your best to complete the lab exercise drawing without using the following hint. If you get stuck and cannot complete it on your own, use the following hint to help you.<\/div>\n

      Hint 1<\/h2>\nTo draw the gear teeth, see the five steps in the figure. Step 1 - Draw one line of the teeth. Step 2 - Array the line 64 times. Step 3 and 4 - Add lines to create one tooth and the repeat pattern. Erase the unwanted lines. Step 5 - Array the tooth 32 times. (Figure Hint 1)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"600\"]\"\" Figure Hint 1[\/caption]\n\n
      AUTHOR'S CONSTRUCTION HINTS: <\/strong> Do your best to complete the lab exercise drawing without using the following hints. If you get stuck and cannot complete it on your own, use the following hints to help you.<\/div>\n

      Hint 2<\/h2>\nIf you have trouble visualizing the object, study the solid models of the object shown below. The solid modeling views were done using AutoCAD. Solid Modeling is taught in the AutoCAD 3D book.\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"300\"]\"\" Solid Model of Object[\/caption]\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"300\"]\"\" Solid Model of Object[\/caption]\n

      Lab Exercise 32-3<\/h1>\nTime allowed: 80 minutes.\n\n\n\n\n
      Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
      AutoCAD 2D Lab 32-3<\/td>\n2D Layout Metric<\/td>\nMillimeters<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"479\"]\"\" Figure Step 1A[\/caption]\n

      Step 1<\/h2>\nUsing the dimensioned drawing as a reference, on layer: Lot Lines, draw only the four outside lot lines or the boundary of the lot. The dimensions on the drawing are in meters but the input is in millimeters so you must be careful. 1 meter = 1000 millimeters (Figure Step 1A and 1B)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"183\"]\"\" Figure Step 1B[\/caption]\n\n
      AUTHOR'S COMMENTS: <\/strong>When the dimension of a line is 14.02, draw the line 14020 mm.<\/div>\n

      Step 2<\/h2>\nUsing the dimensioned drawing as a reference, on layer: Object<\/span>, draw the lines and arcs of the driveway, garage, house and patio. (Figure Step 2)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"259\"]\"\" Figure Step 2[\/caption]\n

      Step 3<\/h2>\nOn layer: Boundary<\/span>, use the BOUNDARY command to create a closed pline around each of the seven areas shown in the figure. (Figure Step 3)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"227\"]\"\" Figure Step 3[\/caption]\n

      Step 4<\/h2>\nTurn layer: Object<\/span> off.\n

      Step 5<\/h2>\nOn layer: Lot Hatch<\/span>, insert the hatch patterns in the seven areas as follows:\n\nA <\/strong>Grass\n\nB <\/strong>AR-CONC\n\nC <\/strong>Net\n\nD <\/strong>Net - at an angle of 45 degrees\n\nE <\/strong>Gravel\n\nF <\/strong>AR-HBONE\n\nG <\/strong>Solid\n\n(Figure Step 5A and 5B)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"224\"]\"\" Figure Step 5A[\/caption]\n\n
      AUTHOR'S COMMENTS: <\/strong>You will have to adjust the scale of each hatch pattern. Insert them and then edit them until they appear correct on your drawing. If HATCH will not insert them at the scale you selected, change the scale and try again.<\/div>\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"309\"]\"\" Figure Step 5B[\/caption]\n

      Step 6<\/h2>\nEnable layout: Module Layout A2<\/span>. On layer: Viewport<\/span>, create a viewport and set the scale to 1:100 (0.01). (Figure Step 6)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"600\"]\"\" Figure Step 6[\/caption]\n

      Step 7<\/h2>\nFind the areas and of the seven areas. Set the text style to:2D Modules. In Paper space, on layer: Text, insert the text as shown in the figure and include your answers. Set an appropriate text height. (Figure Step 7)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"263\"]\"\" Figure Step 7[\/caption]\n

      Step 8<\/h2>\nOn layer: Titleblock Text<\/span>, fill in the titleblock using the standard shown in Module 20.\n

      Step 9<\/h2>\nTurn layer: Viewport<\/span> off. (Figure Step 9)\n\n[caption id=\"attachment_1649\" align=\"aligncenter\" width=\"600\"]\"\" Figure Step 9[\/caption]\n

      Step 10<\/h2>\nSave and close the drawing.","rendered":"
      \n
      \n

      Learning Outcomes<\/p>\n<\/header>\n

      \n

      When you have completed this module, you will be able to:<\/p>\n

        \n
      1. Describe crosshatching, hatching boundaries, hatching patterns, and associative and nonassociative hatching.<\/li>\n
      2. Explain sectional views, sections, and hatching in sectional views.<\/li>\n
      3. Apply the HATCH and HATCHEDIT commands to insert and edit crosshatching patterns.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n

        Crosshatching<\/h1>\n

        Many drawings require areas to be filled with a pattern. This is called crosshatching<\/span> <\/em>or just hatching<\/em><\/span>. There are many uses for hatch patterns on a drawing including displaying an object’s material type, the solid material that was cut through in the sectional view, difference materials used in one area to another, plus many other applications.<\/p>\n

        Hatching Boundaries<\/h2>\n

        The HATCH command is used to insert hatch patterns. It allows you to select two different methods of selecting the boundary of the area to be filled in with the hatch pattern. The first method is picking an internal point and allow the HATCH command to find an enclosed boundary and the second method involves using an existing closed polyline to define the hatching boundary. The first method works well most of the time but for more complicated drawings, the second method must be used.<\/p>\n

        Hatching Patterns<\/h2>\n

        There are many predefined hatch patterns including ANSI standards, ISO standards, and a solid fill pattern that are part of AutoCAD’s software. All hatch patterns are constructed using lines but hatch patterns are inserted as a single drawing object. This helps them to be easily manipulated and also keeps the drawing’s database small. A hatching pattern can be exploded, using the EXPLODE command, to convert it to individual lines.<\/p>\n

        Associative Verses Nonassociative Hatching<\/h2>\n

        An associative hatch <\/em><\/span>will automatically adjust when the boundary, that was used to create it, is moved or changed. A nonassociative hatch<\/span> <\/em>remains the same size and in the same location regardless of the changes made to the hatch’s boundary. An associative hatch is the default in the HATCH command.<\/p>\n

        An associative hatch can be changed to a nonassociative hatch by changing the properties of the object with the Properties window or with the HATCHEDIT command. A nonassociative hatch can never be changed to a associative hatch. It would have to be deleted and reinserted.<\/p>\n

        \n
        \n

        AutoCAD Command: HATCH<\/p>\n<\/header>\n

        \n

        The HATCH command is used to insert a hatch pattern.<\/p>\n

        Shortcut: H<\/strong><\/p>\n

        \"\"
        Draw Toolbar<\/figcaption><\/figure>\n
        \"\"
        Draw Pull-down<\/figcaption><\/figure>\n
        \"\"
        Home Ribbon<\/figcaption><\/figure>\n<\/div>\n<\/div>\n
        \n
        \n

        AutoCAD Command: HATCHEDIT<\/p>\n<\/header>\n

        \n

        The HATCHEDIT command is used to edit an existing hatch pattern.<\/p>\n

        Shortcut: none<\/strong><\/p>\n

        \"\"
        Modify II Toolbar<\/figcaption><\/figure>\n
        \"\"
        Modify Pull-down<\/figcaption><\/figure>\n
        \"\"
        Home Ribbon<\/figcaption><\/figure>\n<\/div>\n<\/div>\n

        Drafting Lesson: Cross Sections – Part 1<\/h1>\n

        When a view of an object requires a clearer description of its interior or it is hard to dimension because of the hidden lines, a cross section view can be drawn in place of the normal multiview. See Figure 32-1<\/p>\n

        \"\"
        Figure 32-1
        Normal Front and Right Side View of an Object<\/figcaption><\/figure>\n

        A cross section <\/em><\/span>view, also called a section<\/em><\/span>, is a view of the object as if it were cut along a cutting plane and the two pieces pulled apart exposing the inside of the object. See Figure 32-2 and 32-4.<\/p>\n

        \"\"
        Figure 32-2
        A Front view and Right Side Section View<\/figcaption><\/figure>\n
        \"\"
        Figure 32-3
        3D Model of the Object Showing the Cutting Plane Line<\/figcaption><\/figure>\n
        \"\"
        Figure 32-4
        3D Model of the Object Showing it Cut on the Cutting Plane Line<\/figcaption><\/figure>\n

        A cutting plane <\/em><\/span>line is the line along the object where the cut would have been made. See Figure 32-2 and 32-3. The arrows point in the direction that you are looking when drawing the section view. The surfaces of the object that are solid, when cut, are crosshatched.<\/p>\n

        WORKALONG: Inserting Hatch Patterns<\/h1>\n

        Step 1<\/h2>\n

        Start a new drawing using the template: 2D Layout English<\/span>.<\/p>\n

        Step 2<\/h2>\n

        Save and name the drawing: AutoCAD 2D Workalong 32-1<\/span>.<\/p>\n

        Step 3<\/h2>\n

        Enter the HATCH command. It will open the Hatch and Gradient dialogue box. The More\/Less icon, in the bottom right corner of the dialogue box, is used to open or close the advanced portion of the dialogue box. (Figure Step 3)<\/p>\n

        \"\"
        Figure Step 3<\/figcaption><\/figure>\n
        MUST KNOW:<\/strong> A hatch object is constructed using lines but acts as a single drawing object. This helps you manipulate the hatch object and also keeps your drawing’s database small. A hatch object can be exploded into individual line objects with the EXPLODE command. If exploded, its associativity will be lost.<\/div>\n

        Step 4<\/h2>\n

        Open drawing: AutoCAD 2D Workalong 30-1<\/span>. Using the SAVEAS command, save and name the drawing: AutoCAD 2D Workalong 32-1<\/span>. (Figure Step 4)<\/p>\n

        \"\"
        Figure Step 4<\/figcaption><\/figure>\n

        Step 5<\/h2>\n

        Using the ROTATE command, rotate the diamond 45 degrees, using its center as the base point, to change it to a square. (Figure Step 5)<\/p>\n

        \"\"
        Figure Step 5<\/figcaption><\/figure>\n

        Step 6<\/h2>\n

        Using the COPY command, copy the bottom object three times locating them by eye. Align the copies and center them using what you have learned to this point in the book. Their exact location is not important for this exercise but ensure that they are aligned.<\/p>\n

        Step 7<\/h2>\n

        Erase the 6 regular polygons above the rectangles. On layer: Text<\/span>, using the DTEXT command, add the text in each copy. Use the text style: 2D Modules<\/span> at a height of 0.25. Your drawing should appear similar to the figure. (Figure Step 7)<\/p>\n

        \"\"
        Figure Step 7<\/figcaption><\/figure>\n

        Step 8<\/h2>\n

        Set the current layer to layer: Hatch<\/span>. Enter the HATCH command. In the Hatch and Gradient dialogue box, set the Type and pattern to ANSI31. In the Angle and scale box, set the Angle to 0 and the Scale to 1. (Figure Step 8A and 8B)<\/p>\n

        \"\"
        Figure Step 8A<\/figcaption><\/figure>\n
        \"\"
        Figure Step 8B<\/figcaption><\/figure>\n

        Step 9<\/h2>\n

        In the Options box, ensure that Associative is enabled. (Figure Step 9)<\/p>\n

        \"\"
        Figure Step 9<\/figcaption><\/figure>\n
        \n

        AUTHOR’S COMMENTS: <\/strong>When a hatch pattern is created as an associative, it will automatically adjust when the boundary, that was used when it was created, is moved or changed. A nonassociative hatch remains the same size and in the same location regardless of the changes made to the hatch’s boundary.<\/p>\n<\/div>\n

        Step 10<\/h2>\n

        In the Boundaries box, click the Add Pick points icon and then pick the point P1 in Part A as shown in the figure. The hatch pattern will hatch the ellipse, without hatching over the text. (Figure Step 10A, 10B, and 10C)<\/p>\n

         <\/p>\n

        \"\"
        Figure Step 10 A<\/figcaption><\/figure>\n
        \"\"
        Figure Step 10B\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Figure Step 10C<\/figcaption><\/figure>\n
        \n

        AUTHOR’S COMMENTS: <\/strong>The area to be hatched can be hatched using either the Pick Point method or the Select Object method. They will produce very different results and are used for different purposes as you will see as you work your way through this module.<\/p>\n<\/div>\n

        Step 11<\/h2>\n

        Click OK to complete the command.<\/p>\n

        Step 12<\/h2>\n

        Enter the HATCH command again. In the Hatch dialogue box, set the Pattern to ANSI31, the Angle to 45 degrees and the Scale to 0.5. (Figure step 12)<\/p>\n

        \"\"
        Figure Step 12<\/figcaption><\/figure>\n

        Step 13<\/h2>\n

        Click the Add Select objects icon and when prompted, select the ellipse in Part B as shown in the figure. The hatch pattern will ignore everything inside the object as you can see in the figure. (Figure Step 13A, 13B, and 13C)<\/p>\n

        \"\"
        Figure Step 13A<\/figcaption><\/figure>\n
        \"\"
        Figure Step 13B\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Figure Step 13C<\/figcaption><\/figure>\n

        Step 14<\/h2>\n

        Enter the HATCH command. Click the … icon at the end of the Pattern box. This will open the Hatch Pattern Palette dialogue box. Select the AR-HBONE pattern. (Figure Step 14A and 14B)<\/p>\n

         <\/p>\n

        \"\"
        Figure Step 14A<\/figcaption><\/figure>\n
        \"\"
        Figure Step 14B<\/figcaption><\/figure>\n

        Step 15<\/h2>\n

        With the AR-HBONE pattern selected, set the Angle to 0 and the Scale to 0.01. (Figure Step 15)<\/p>\n

        \"\"
        Figure Step 15<\/figcaption><\/figure>\n

        Step 16<\/h2>\n

        Using what you just learned, insert the hatching patterns in Part A using the Select Object method. Use the following specifications: (Figure Step 16)<\/p>\n

        Triangle – Pattern Hr-HBone<\/p>\n

        Angle – 0 Scale – 0.1<\/p>\n

        Square – Pattern Honey<\/p>\n

        Angle – 0 Scale – 0.5<\/p>\n

        Hexagon – Pattern Gravel<\/p>\n

        Angle – 0 Scale – 0.25<\/p>\n

        8 Sided Polygon – Pattern Solid, Angle N\/A – Scale – N\/A<\/p>\n

        \"\"
        Figure Step 16<\/figcaption><\/figure>\n

        Step 17<\/h2>\n

        On layer: Object<\/span>, draw a 1 inch diameter circle in the center of the ellipses in Part C and Part D. (Figure Step 17)<\/p>\n

        \"\"
        Figure Step 17<\/figcaption><\/figure>\n

        Step 18<\/h2>\n

        Enter the HATCH command. Ensure that the Islands box is set to Normal as shown in the figure. Set the Types and pattern to Stars, the Angle to 0 and Scale to 0.5. (Figure Step 18A and 18B)<\/p>\n

        \"\"
        Figure Step 18A<\/figcaption><\/figure>\n
        \"\"
        Figure Step 18B<\/figcaption><\/figure>\n

        Step 19<\/h2>\n

        Click the Add Pick points icon. In Part C, select inside the rectangle as shown by P4. Part C should hatch as shown in the figure. (Figure Step 19A and 19B)<\/p>\n

        \"\"
        Figure Step 19A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Figure Step 19B<\/figcaption><\/figure>\n
        AUTHOR’S COMMENTS: <\/strong>When the Islands display style is set to Normal, the hatching pattern will hatch every other island.<\/div>\n

        Step 20<\/h2>\n

        Enter the HATCH command and set the Islands display style to Ignore<\/span>. (Figure Step 20)<\/p>\n

        \"\"
        Figure Step 20<\/figcaption><\/figure>\n

        Step 21<\/h2>\n

        Click the Add Pick points icon and select the location P5 in Part D. (Figure Step 21A and 21B)<\/p>\n

        \"\"
        Figure Step 21A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Figure Step 21B<\/figcaption><\/figure>\n
        AUTHOR’S COMMENTS: <\/strong> Note how all islands are ignored.<\/div>\n

        Step 22<\/h2>\n

        Your completed drawing should match the figure. (Figure Step 22)<\/p>\n

        \"\"
        Figure Step 22<\/figcaption><\/figure>\n

        Step 23<\/h2>\n

        Save and close the drawing.<\/p>\n

        \n

        MUST KNOW:<\/strong> The FILL command controls the fill of a hatching pattern plus other feature in AutoCAD. If toggled off, hatch patterns will not appear on the drawing. This can help you work faster since the drawing regenerates faster. Do not forget to turn the FILL on when finished. The REGEN command must be executed to display the current fillmode after the FILL command has been executed.<\/p>\n

        \"\"<\/p>\n<\/div>\n

        WORKALONG: Using the HATCHEDIT Command<\/h1>\n

        Step 1<\/h2>\n

        Open the drawing: AutoCAD 2D Workalong 32-1<\/span>. Using the SAVEAS command, save and name the drawing: AutoCAD 2D Workalong 32-2<\/span>. (Figure Step 1)<\/p>\n

        \"\"
        Figure Step 1<\/figcaption><\/figure>\n

        Step 2<\/h2>\n

        Enter the HATCHEDIT command, as shown below. (Figure Step 2)<\/p>\n

        Command: HATCHEDIT<\/strong><\/p>\n

        Select hatch object: P1<\/strong><\/p>\n

        (Select the hatching pattern inside the ellipse of PART A. This will open the Hatch Edit dialogue box.)<\/em><\/span><\/p>\n

        \"\"
        Figure Step 2<\/figcaption><\/figure>\n

        Step 3<\/h2>\n

        In the Angle and scale box change the Angle to 135 and the Scale to 2 as shown in Figure Step 3A. Click OK. Notice the change to the hatching pattern. (Figure Step 3A and 3B)<\/p>\n

        \"\"
        Figure Step 3A<\/figcaption><\/figure>\n
        \"\"
        Figure Step 3B<\/figcaption><\/figure>\n

        Step 4<\/h2>\n

        To edit the hatching pattern for Part B, double click the pattern to open the Hatchedit dialogue box. On the pull-down list for Pattern, select Net. (Figure Step 4A and 4B)<\/p>\n

        \"\"
        Figure Step 4A<\/figcaption><\/figure>\n
        \"\"
        Figure Step 4B<\/figcaption><\/figure>\n

        Step 5<\/h2>\n

        In the Angle and scale box, change the Angle to 0 and the Scale to 3. Click OK. Note the change to the hatching pattern. (Figure Step 5A and 5B)<\/p>\n

        \"\"
        Figure Step 5A<\/figcaption><\/figure>\n
        \"\"
        Figure Step 5B<\/figcaption><\/figure>\n

        Step 6<\/h2>\n

        Delete the hatch in Part D. (Figure Step 6)<\/p>\n

        \"\"
        Figure Step 6<\/figcaption><\/figure>\n

        Step 7<\/h2>\n

        Enter the HATCH command and click the Inherit Properties icon. Select the Net hatch pattern in Part B. With the paint brush graphic cursor, select inside the ellipse in Part D. (Figure Step 7A, 7B, 7C, and 7D)<\/p>\n

        \"\"
        Figure Step 7A<\/figcaption><\/figure>\n
        \"\"
        Figure Step 7B<\/figcaption><\/figure>\n
        \"\"
        Figure Step 7C<\/figcaption><\/figure>\n
        \"\"
        Figure Step 7D<\/figcaption><\/figure>\n

        Step 8<\/h2>\n

        Enter the commands shown below. Note how the hatching patterns will not display when Fill is Off and display when it is On. (Figure Step 8A and 8B)<\/p>\n

        Command: FILL<\/strong><\/p>\n

        Enter mode [ON\/OFF] <ON>: OFF<\/strong><\/p>\n

        Command: REGEN <\/strong><\/p>\n

        Regenerating model.<\/p>\n

        Command: FILL<\/strong><\/p>\n

        Enter mode [ON\/OFF] <OFF>: ON<\/strong><\/p>\n

        Command: REGEN<\/strong><\/p>\n

        Regenerating model. Command<\/p>\n

        \"\"
        Figure Step 8A<\/figcaption><\/figure>\n
        \"\"
        Figure Step 8B<\/figcaption><\/figure>\n
        AUTHOR’S COMMENTS: <\/strong> To speed drawing regeneration, turn Fill off and on while you are working on the drawing. Turn it on when you complete the drawing and are ready to plot.<\/div>\n

        Key Principles<\/h1>\n
        \n
        \n

        Key Principles in Module 32<\/p>\n<\/header>\n

        \n
          \n
        1. When using the Select object method to hatch, a closed polyline must be created before executing the HATCH command. Since a circle, rectangle, or an ellipse are closed objects, they can be used as a closed polyline.<\/li>\n
        2. All hatch patterns are constructed using lines but the hatch pattern is created as a single object in the drawing. This helps to manipulate the hatch patterns and keep the drawing’s database smaller. A hatching pattern can be exploded back into its individual line objects using the EXPLODE command.<\/li>\n
        3. An associative hatch will automatically adjust when the boundary, that was used when it was created, is moved or changed. A nonassociative hatch remains the same size and in the same location regardless of the changes made to the hatch boundary.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n

          Lab Exercise 32-1<\/h1>\n

          Time allowed: 40 minutes.<\/p>\n\n\n\n\n
          Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
          AutoCAD 2D Lab 32-1<\/td>\n2D Layout English<\/td>\nInches<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Step 1<\/h2>\n

          On layer: Object<\/span>, draw the top and front views of the object shown in figures. (Figure Step 1)<\/p>\n

          \"\"
          Figure Step 1<\/figcaption><\/figure>\n

          Step 2<\/h2>\n

          Use the spacing between views as shown in the figure. (Figure Step 2)<\/p>\n

          \"\"
          Figure Step 2
          Top and Front View Locations<\/figcaption><\/figure>\n

          Step 3<\/h2>\n

          On the Front view, add the full cross section. The cutting plane line is shown in Figure Step 3A. On layer: Hatch<\/span>, insert the cross hatching pattern using the pattern ANSI31. Select an appropriate scale. (Figure Step 3A and 3B)<\/p>\n

          \"\"
          Figure Step 3A<\/figcaption><\/figure>\n
          \"\"
          Figure Step 3B
          Completed Drawing<\/figcaption><\/figure>\n
          AUTHOR’S CONSTRUCTION HINTS: <\/strong> Do your best to complete the lab exercise drawing without using the following hints. If you get stuck and cannot complete it on your own, use the following hints to help you.<\/div>\n

          Hint 1<\/h2>\n

          If you have trouble visualizing the object and the section view you have to draw, study the solid models of the object shown below. The solid modeling views were done using AutoCAD. Solid Modeling is taught in the AutoCAD 3D book.<\/p>\n

           <\/p>\n

          \"\"
          Solid Model Isometric View<\/figcaption><\/figure>\n
          \"\"
          Solid Model Sliced on Cutting Plane Line<\/figcaption><\/figure>\n
          \"\"
          Solid Model View from Bottom<\/figcaption><\/figure>\n

          Lab Exercise 32-2<\/h1>\n

          Time allowed: 50 minutes.<\/p>\n\n\n\n\n
          Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
          AutoCAD 2D Lab 32-2<\/td>\n2D Layout English<\/td>\nInches<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Step 1<\/h2>\n

          On layer: Object<\/span>, draw the Front and Right Side views of the figure. Draw the Right Side view as a full section. (Figure Step 1A, 1B, and 1C)<\/p>\n

          \"\"
          Figure Step 1A
          Location of the Views<\/figcaption><\/figure>\n
          \"\"
          Figure Step 1B<\/figcaption><\/figure>\n
          \"\"
          Figure Step 1C
          Detail of Gear Teeth<\/figcaption><\/figure>\n

          Step 2<\/h2>\n

          On layer: Hatch<\/span>, insert the cross hatching pattern using the pattern ANSI32 at a scale of 0.5. (Figure Step 2)<\/p>\n

          \"\"
          Figure Step 2<\/figcaption><\/figure>\n
          AUTHOR’S CONSTRUCTION HINTS: <\/strong> Do your best to complete the lab exercise drawing without using the following hint. If you get stuck and cannot complete it on your own, use the following hint to help you.<\/div>\n

          Hint 1<\/h2>\n

          To draw the gear teeth, see the five steps in the figure. Step 1 – Draw one line of the teeth. Step 2 – Array the line 64 times. Step 3 and 4 – Add lines to create one tooth and the repeat pattern. Erase the unwanted lines. Step 5 – Array the tooth 32 times. (Figure Hint 1)<\/p>\n

          \"\"
          Figure Hint 1<\/figcaption><\/figure>\n
          AUTHOR’S CONSTRUCTION HINTS: <\/strong> Do your best to complete the lab exercise drawing without using the following hints. If you get stuck and cannot complete it on your own, use the following hints to help you.<\/div>\n

          Hint 2<\/h2>\n

          If you have trouble visualizing the object, study the solid models of the object shown below. The solid modeling views were done using AutoCAD. Solid Modeling is taught in the AutoCAD 3D book.<\/p>\n

          \"\"
          Solid Model of Object<\/figcaption><\/figure>\n
          \"\"
          Solid Model of Object<\/figcaption><\/figure>\n

          Lab Exercise 32-3<\/h1>\n

          Time allowed: 80 minutes.<\/p>\n\n\n\n\n
          Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
          AutoCAD 2D Lab 32-3<\/td>\n2D Layout Metric<\/td>\nMillimeters<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
          \"\"
          Figure Step 1A<\/figcaption><\/figure>\n

          Step 1<\/h2>\n

          Using the dimensioned drawing as a reference, on layer: Lot Lines, draw only the four outside lot lines or the boundary of the lot. The dimensions on the drawing are in meters but the input is in millimeters so you must be careful. 1 meter = 1000 millimeters (Figure Step 1A and 1B)<\/p>\n

          \"\"
          Figure Step 1B<\/figcaption><\/figure>\n
          AUTHOR’S COMMENTS: <\/strong>When the dimension of a line is 14.02, draw the line 14020 mm.<\/div>\n

          Step 2<\/h2>\n

          Using the dimensioned drawing as a reference, on layer: Object<\/span>, draw the lines and arcs of the driveway, garage, house and patio. (Figure Step 2)<\/p>\n

          \"\"
          Figure Step 2<\/figcaption><\/figure>\n

          Step 3<\/h2>\n

          On layer: Boundary<\/span>, use the BOUNDARY command to create a closed pline around each of the seven areas shown in the figure. (Figure Step 3)<\/p>\n

          \"\"
          Figure Step 3<\/figcaption><\/figure>\n

          Step 4<\/h2>\n

          Turn layer: Object<\/span> off.<\/p>\n

          Step 5<\/h2>\n

          On layer: Lot Hatch<\/span>, insert the hatch patterns in the seven areas as follows:<\/p>\n

          A <\/strong>Grass<\/p>\n

          B <\/strong>AR-CONC<\/p>\n

          C <\/strong>Net<\/p>\n

          D <\/strong>Net – at an angle of 45 degrees<\/p>\n

          E <\/strong>Gravel<\/p>\n

          F <\/strong>AR-HBONE<\/p>\n

          G <\/strong>Solid<\/p>\n

          (Figure Step 5A and 5B)<\/p>\n

          \"\"
          Figure Step 5A<\/figcaption><\/figure>\n
          AUTHOR’S COMMENTS: <\/strong>You will have to adjust the scale of each hatch pattern. Insert them and then edit them until they appear correct on your drawing. If HATCH will not insert them at the scale you selected, change the scale and try again.<\/div>\n
          \"\"
          Figure Step 5B<\/figcaption><\/figure>\n

          Step 6<\/h2>\n

          Enable layout: Module Layout A2<\/span>. On layer: Viewport<\/span>, create a viewport and set the scale to 1:100 (0.01). (Figure Step 6)<\/p>\n

          \"\"
          Figure Step 6<\/figcaption><\/figure>\n

          Step 7<\/h2>\n

          Find the areas and of the seven areas. Set the text style to:2D Modules. In Paper space, on layer: Text, insert the text as shown in the figure and include your answers. Set an appropriate text height. (Figure Step 7)<\/p>\n

          \"\"
          Figure Step 7<\/figcaption><\/figure>\n

          Step 8<\/h2>\n

          On layer: Titleblock Text<\/span>, fill in the titleblock using the standard shown in Module 20.<\/p>\n

          Step 9<\/h2>\n

          Turn layer: Viewport<\/span> off. (Figure Step 9)<\/p>\n

          \"\"
          Figure Step 9<\/figcaption><\/figure>\n

          Step 10<\/h2>\n

          Save and close the drawing.<\/p>\n","protected":false},"author":90,"menu_order":1,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-1650","chapter","type-chapter","status-publish","hentry"],"part":1577,"_links":{"self":[{"href":"https:\/\/opentextbc.ca\/autocad2d\/wp-json\/pressbooks\/v2\/chapters\/1650","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/opentextbc.ca\/autocad2d\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/opentextbc.ca\/autocad2d\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/opentextbc.ca\/autocad2d\/wp-json\/wp\/v2\/users\/90"}],"version-history":[{"count":1,"href":"https:\/\/opentextbc.ca\/autocad2d\/wp-json\/pressbooks\/v2\/chapters\/1650\/revisions"}],"predecessor-version":[{"id":1651,"href":"https:\/\/opentextbc.ca\/autocad2d\/wp-json\/pressbooks\/v2\/chapters\/1650\/revisions\/1651"}],"part":[{"href":"https:\/\/opentextbc.ca\/autocad2d\/wp-json\/pressbooks\/v2\/parts\/1577"}],"metadata":[{"href":"https:\/\/opentextbc.ca\/autocad2d\/wp-json\/pressbooks\/v2\/chapters\/1650\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/opentextbc.ca\/autocad2d\/wp-json\/wp\/v2\/media?parent=1650"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/opentextbc.ca\/autocad2d\/wp-json\/pressbooks\/v2\/chapter-type?post=1650"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/opentextbc.ca\/autocad2d\/wp-json\/wp\/v2\/contributor?post=1650"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/opentextbc.ca\/autocad2d\/wp-json\/wp\/v2\/license?post=1650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}