{"id":864,"date":"2021-04-21T11:08:45","date_gmt":"2021-04-21T15:08:45","guid":{"rendered":"https:\/\/opentextbc.ca\/autocad3d\/chapter\/solid-modeling-part-3\/"},"modified":"2021-11-04T11:39:04","modified_gmt":"2021-11-04T15:39:04","slug":"solid-modeling-part-3","status":"publish","type":"chapter","link":"https:\/\/opentextbc.ca\/autocad3d\/chapter\/solid-modeling-part-3\/","title":{"raw":"Module 19 Solid Modeling – Part 3","rendered":"Module 19 Solid Modeling – Part 3"},"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 how the UNION, SUBTRACT, and INTERSECT commands are used and applied when solid modeling.<\/li>\n \t
  2. Apply the INTERSECT, FILLETEDGE, CHAMFEREDGE, and OFFSETEDGE commands to construct and modify solid models.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n

    Working With Composite Solids<\/h1>\nWhen you are constructing solid models, it is important to ensure that the completed solid model consists of only one object. The three commands used to help you to do this are UNION, SUBTRACT and INTERSECT. Study the following figures to help you understand how these commands affect the solid model.\n\nFigure 19-1 shows two solid models in which parts of each one occupies the same 3D space. This, of course, would be impossible in real life.\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"196\"]\"\" Figure 19-1
    Two Solids[\/caption]\n\nFigure 19-2 shows the same model after the UNION command was used to join the two solids into one.\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"182\"]\"\" Figure 19-2
    One Solid[\/caption]\n\nFigure 19-3 shows a shaded model and how the model in Figure 19-1 will appear when the two solids are joined together with the UNION command.\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"179\"]\"\" Figure 19-3
    One Solid - Joined With UNION Command[\/caption]\n\nFigure 19-4 shows how the two solids in Figure 19-1 will appear when the cylinder is subtracted from the box using the SUBTRACT command.\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"179\"]\"\" Figure 19-4
    One Solid - Subtracted[\/caption]\n\nFigure 19-5 shows how the two models in Figure 19-1 would appear when the box is subtracted from the cylinder using the SUBTRACT command.\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"63\"]\"\" Figure 19-5
    One Solid
    Subtracted[\/caption]\n\nFigure 19-6 shows how the solid models in Figure 19-1 would appear if the INTERSECT command is used. Notice how only the volume shared by the two models remains.\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"59\"]\"\" Figure 19-6
    One Solid
    Intersection[\/caption]\n\n
    \n

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

    \n\nThe INTERSECT command is used to create a solid by finding the volume shared by two or more solids.\n\nShortcut: none\n\n[caption id=\"attachment_809\" align=\"aligncenter\" width=\"264\"]\"\" Solid Editing Toolbar[\/caption]\n\n[caption id=\"attachment_809\" align=\"aligncenter\" width=\"383\"]\"\" Modify Pull-down[\/caption]\n\n[caption id=\"attachment_809\" align=\"aligncenter\" width=\"236\"]\"\" Home Ribbon[\/caption]\n\n<\/div>\n<\/div>\n

    WORK ALONG: Creating a Solid Model by Intersecting Two or Three Solid Models<\/h1>\n

    Step 1<\/h2>\nUsing the NEW command, start a new drawing using template: 3D Layout English<\/span>.\n

    Step 2<\/h2>\nSave and name the drawing: AutoCAD 3D Workalong 19-1<\/span>.\n

    Step 3<\/h2>\nEnsure that the DELOBJ system variable is set to 0.\n

    Step 4<\/h2>\nSet layer: Pline<\/span> as the current layer, the current UCS to Front, the current view to SE Isometric, and the current visual style to 2D Wireframe.\n

    Step 5<\/h2>\nSet the current UCS to Front. Using the figures as a reference, draw the contour of the Front view. (Figure Step 5A and 5B)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"500\"]\"\" Figure Step 5A
    Dimensioned Wireframe Model[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"210\"]\"\" Figure Step 5B[\/caption]\n

    Step 6<\/h2>\nUsing the JOIN command, create a closed polyline. (Figure Step 6)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"178\"]\"\" Figure Step 6[\/caption]\n

    Step 7<\/h2>\nSet the current UCS to Right and relocate the UCS to the right side as shown in the figure. Using the PLINE command, draw a closed pline of the contour of the right side. (Figure Step 7)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"267\"]\"\" Figure Step 7[\/caption]\n

    Step 8<\/h2>\nSet the current UCS to Top and relocate it to the top corner of the model as shown in the figure. Using the PLINE command, draw a closed pline of the contour of the top view. (Figure Step 8)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"267\"]\"\" Figure Step 8[\/caption]\n\n
    AUTHOR'S COMMENTS: <\/strong>The contour of a view is the outside shape of the view as it would appear in a multiview drawing. Do not include any of the interior objects in the view.<\/div>\n

    Step 9<\/h2>\nSet layer: Solid 3<\/span> as the current layer. Extrude the Front view the depth of the model. (Figure Step 9)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"310\"]\"\" Figure Step 9[\/caption]\n

    Step 10<\/h2>\nSet the current visual style to Realistic to see the extruded solid. (Figure Step 10)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"308\"]\"\" Figure Step 10[\/caption]\n

    Step 11<\/h2>\nSet the current visual style to 2D Wireframe. Using PRESSPULL, extrude the Right Side and the Top view. Set the current visual style to Realistic to see all three extruded solids at the same time. (Figure Step 11A and 11B)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"280\"]\"\" Figure Step 11A[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"281\"]\"\" Figure Step 11B[\/caption]\n\n
    AUTHOR'S COMMENTS: <\/strong>You now have the three solids that occupy a portion of the same 3D space. The next step is to create a single solid model of the 3D space that they all share. To do this, use the INTERSECT command.\n<\/strong><\/div>\n

    Step 12<\/h2>\nSave drawing.\n

    Step 13<\/h2>\nSet the current visual style to 2D Wireframe. Enter the INTERSECT command, as shown below, to create the common solid from the three intersecting solids. (Figure Step 13)\n\nCommand: INTERSECT<\/strong>\n\nSelect objects: 1 found\n\nSelect objects: 1 found, 2 total\n\nSelect objects: 1 found, 3 total\n\n(Select each of the solid models.)<\/em><\/span>\n\nSelect objects:\n\nCommand:\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"283\"]\"\" Figure Step 13[\/caption]\n

    Step 14<\/h2>\nSet the current visual style to Realistic. (Figure Step 14)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"281\"]\"\" Figure Step 14[\/caption]\n

    Step 15<\/h2>\nSave and close the drawing.\n
    \n

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

    \n\nThe FILLETEDGE command is used to create a fillet (tangent arc) on the edge or edges of a solid model.\n\nShortcut: none<\/strong>\n\n[caption id=\"attachment_823\" align=\"aligncenter\" width=\"369\"]\"\" Modify Pull-Down[\/caption]\n\n[caption id=\"attachment_823\" align=\"aligncenter\" width=\"541\"]\"\" Solid Editing Toolbar[\/caption]\n\n[caption id=\"attachment_823\" align=\"aligncenter\" width=\"322\"]\"\" Solid Ribbon[\/caption]\n\n<\/div>\n<\/div>\n
    \n

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

    \n\nThe CHAMFEREDGE command is used to create a chamfer on the edge or edges of a solid model.\n\nShortcut:\u00a0 none<\/strong>\n\n[caption id=\"attachment_826\" align=\"aligncenter\" width=\"369\"]\"\" Modify Pull-down[\/caption]\n\n[caption id=\"attachment_826\" align=\"aligncenter\" width=\"500\"]\"\" Solid Editing Toolbar[\/caption]\n\n[caption id=\"attachment_826\" align=\"aligncenter\" width=\"323\"]\"\" Solid Ribbon[\/caption]\n\n<\/div>\n<\/div>\n

    WORK ALONG: Creating Fillets and Chamfers on Solid Models<\/h1>\n

    Step 1<\/h2>\nUsing the NEW command, start a new drawing using template: 3D Layout English<\/span>.\n

    Step 2<\/h2>\nSave and name the drawing: AutoCAD 3D Workalong 19-2<\/span>.\n

    Step 3<\/h2>\nSet layer: Pline as the current layer, the current UCS to Front, the current view to SE Isometric, and the current visual style to 2D Wireframe. Create a the closed pline on the Front view using the figures as a reference. Ignore the fillets and rounds. (Figure Step 3A, 3B, and 3C)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"487\"]\"\" Figure Step 3A
    Dimensioned Multiview of Model 1[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"229\"]\"\" Figure Step 3B Completed Solid Model of Model 1 -
    SE Isometric View[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"160\"]\"\" Figure Step 3C
    Location of 0,0,0[\/caption]\n

    Step 4<\/h2>\nOn layer: Solid 2<\/span>, create a solid model as shown in the figure. Do not include the fillets and rounds. For the hole, extrude a circle. Check to ensure that your model is one solid object only using the Properties window. (Figure Step 4A and 4B)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"279\"]\"\" Figure Step 4A[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"207\"]\"\" Figure Step 4B[\/caption]\n

    Step 5<\/h2>\nTurn layer: Pline<\/span> off.\n

    Step 6<\/h2>\nSet the current UCS to Top. Copy the solid model, that you completed in Step 4, 8 inches in the positive Y direction. The 8 inches is measured from the same point on model to the same point on the copy. The actual distance between the two model will be 5 inches. (Figure Step 6)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"492\"]\"\" Figure Step 6[\/caption]\n\nApply Steps 7 to 10 to the model on the left side of Figure Step 6.<\/strong><\/span>\n

    Step 7<\/h2>\nTurn layer: Pline<\/span> off. Enter the FILLETEDGE command, as shown below, to fillet the bottom corners. (Figure Step 7)\n\nCommand: FILLETEDGE<\/strong>\n\nRadius = 1.2500\n\nSelect an edge or [Chain\/Loop\/Radius]: P1 <\/strong>\n\nSelect an edge or [Chain\/Loop\/Radius]: P2<\/strong>\n\nSelect an edge or [Chain\/Loop\/Radius]:\n\n2 edge(s) selected for fillet.\n\nPress Enter to accept the fillet or [Radius]: R<\/strong>\n\nSpecify Radius or [Expression] <1.0000>: 1<\/strong>\n\nPress Enter to accept the fillet or [Radius]:\n\nCommand:\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"258\"]\"\" Figure Step 7[\/caption]\n\n
    AUTHOR'S COMMENTS:<\/strong> I had you turn layer Pline off so that the plines do not get in the way when you are selecting the fillet edges of the model.\n<\/strong><\/div>\n

    Step 8<\/h2>\nEnter the FILLETEDGE command, as shown below, to fillet the top edge. (Figure Step 8)\n\nCommand: FILLETEDGE<\/strong>\n\nRadius = 1.0000\n\nSelect an edge or [Chain\/Loop\/Radius]: P3<\/strong>\n\nselect an edge or [Chain\/Loop\/Radius]: C<\/strong>\n\n(Use the Chain option.)<\/em><\/span>\n\nSelect an edge chain or [Edge\/Radius]: E<\/strong>\n\nSelect an edge or [Chain\/Loop\/Radius]: P4<\/strong>\n\nSelect an edge or [Chain\/Loop\/Radius]: P5<\/strong>\n\nSelect an edge or [Chain\/Loop\/Radius]: P6<\/strong>\n\nSelect an edge or [Chain\/Loop\/Radius]: R<\/strong>\n\nEnter fillet radius or [Expression] <1.0000>: .125<\/strong>\n\nSelect an edge or [Chain\/Loop\/Radius]:\n\n4 edge(s) selected for fillet.\n\nPress Enter to accept the fillet or [Radius]:\n\nCommand:\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"217\"]\"\" Figure Step 8[\/caption]\n\n
    AUTHOR'S COMMENTS: <\/strong>It is important to use the Chain option when the fillet starts and ends at the same corner. When a chain is used, all the corners are filleted correctly.\n<\/strong><\/div>\n

    Step 9<\/h2>\nEnter the FILLETEDGE command, as shown below, to fillet the top of the hole. (Figure Step 9)\n\nCommand: FILLETEDGE<\/strong>\n\nRadius = 0.1250\n\nSelect an edge or [Chain\/Loop\/Radius]: P7<\/strong>\n\nSelect an edge or [Chain\/Loop\/Radius]:\n\n1 edge(s) selected for fillet.\n\nPress Enter to accept the fillet or [Radius]:\n\nCommand:\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"217\"]\"\" Figure Step 9[\/caption]\n

    Step 10<\/h2>\nSet the visual style to Realistic. The drawing should appear as shown in the figure. (Figure Step 10)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"389\"]\"\" Figure Step 10[\/caption]\n

    Step 11<\/h2>\nReferring to the figures, edit the model shown in Steps 11 to 13. (Figure Step 11A and 11B)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"525\"]\"\" Figure Step 11A
    Dimensioned Multiview Of Model 2[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"250\"]\"\" Figure Step 11B
    Completed Solid Model of Model 2
    - SE Isometric View[\/caption]\n\nApply Steps 12 to 14 to the model on the right side in Figure Step 6.<\/strong><\/span>\n

    Step 12<\/h2>\nEnter the CHAMFEREDGE command, as shown below, to chamfer the bottom corner. (Figure Step 12A and 12B)\n\nCommand: CHAMFEREDGE<\/strong>\n\nDistance1 = 1.2500, Distance2 = 1.2500\n\nSelect an edge or [Loop\/Distance]: P1<\/strong>\n\nSelect another edge on the same face or [Loop\/Distance]: D<\/strong>\n\nSpecify Distance1 or [Expression] <1.0000>: 1<\/strong>\n\nSpecify Distance2 or [Expression] <1.0000>: 1<\/strong>\n\nSelect another edge on the same face or [Loop\/Distance]:\n\nPress Enter to accept the chamfer or [Distance]:\n\nCommand:\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"239\"]\"\" Figure Step 12A[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"239\"]\"\" Figure Step 12B[\/caption]\n

    Step 13<\/h2>\nEnter the CHAMFEREDGE command, as shown below, to chamfer the hole. (Figure Step 13A and 13B)\n\nCommand: CHAMFEREDGE<\/strong>\n\nDistance1 = 1.0000, Distance2 = 1.0000\n\nSelect an edge or [Loop\/Distance]: P2<\/strong>\n\nSelect another edge on the same face or [Loop\/Distance]: D<\/strong>\n\nSpecify Distance1 or [Expression] <1.0000>: .15<\/strong>\n\nSpecify Distance2 or [Expression] <1.0000>: .15<\/strong>\n\nSelect another edge on the same face or [Loop\/Distance]:\n\nPress Enter to accept the chamfer or [Distance]:\n\nCommand:\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"300\"]\"\" Figure Step 13A[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"181\"]\"\" Figure Step 13B[\/caption]\n

    Step 14<\/h2>\nEnter the CHAMFEREDGE command, as shown below, to create a loop chamfer around the top of the model. (Figure Step 14)\n\nCommand: CHAMFEREDGE<\/strong>\n\nDistance1 = 0.1500, Distance2 = 0.1500\n\nSelect an edge or [Loop\/Distance]: L<\/strong>\n\nSelect edge of loop or [Edge\/Distance]:\n\nEnter an option [Accept\/Next] <Accept>: N<\/strong>\n\nEnter an option [Accept\/Next] <Accept>:\n\nSelect edge of loop or [Edge\/Distance]: D<\/strong>\n\nSpecify Distance1 or [Expression] <0.1500>: 0.125<\/strong>\n\nSpecify Distance2 or [Expression] <0.1500>: 0.125<\/strong>\n\nSelect another edge on the same face or [Loop\/Distance]:\n\nPress Enter to accept the chamfer or [Distance]:\n\nCommand:\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"239\"]\"\" Figure Step 14[\/caption]\n\n
    AUTHOR'S COMMENTS: <\/strong>The CHAMFEREDGE command is a little tricky. When you select the edge, the command may highlight wrong plane. Continuing entering N until the correct plane highlights.\n<\/strong><\/div>\n
    AUTHOR'S COMMENTS:<\/strong> It is important to use the Loop option when the chamfer starts and ends at the same corner. When a loops is used, all the corners will be chamfered correctly.\n<\/strong><\/div>\n

    Step 15<\/h2>\nSet the current UCS to Realistic. The final drawing should appear as shown in the figure. (Figure Step 15)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"400\"]\"\" Figure Step 15[\/caption]\n

    Step 16<\/h2>\nSave and close the drawing.\n
    \n

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

    \n\nThe OFFSETEDGE command is used to create a closed polyline that is offset at a specified distance from the edges of a selected planar face on a 3D solid or surface.\n\nShortcut: none<\/strong>\n\n[caption id=\"attachment_845\" align=\"aligncenter\" width=\"319\"]\"\" Solid Ribbon[\/caption]\n\n<\/div>\n<\/div>\n

    WORK ALONG: Creating Fillets and Chamfers on Solid Models<\/h1>\n

    Step 1<\/h2>\nOpen the drawing: AutoCAD 3D Workalong 19-2<\/span>. Using SAVEAS, save the drawing with the name: AutoCAD 3D Workalong 19-3<\/span> (Figure Step 1)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"406\"]\"\" Figure Step 1[\/caption]\n

    Step 2<\/h2>\nSet layer: Pline<\/span> as the current layer.\n

    Step 3<\/h2>\nUsing the model on the left, enter the OFFSETEDGE command, as shown below, to create a closed polyline 0.25 inches from the edge. (Figure Step 3A and 3B)\n\nCommand: OFFSETEDGE<\/strong>\n\nCorner = Sharp\n\nSelect face:\n\nSpecify through point or [Distance\/Corner]: D<\/strong>\n\nSpecify distance <0.1250>: 0.25<\/strong>\n\nSpecify point on side to offset:\n\nSelect face:\n\nCommand:\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"178\"]\"\" Figure Step 3A[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"175\"]\"\" Figure Step 3B[\/caption]\n

    Step 4<\/h2>\nSet layer: Solid 2<\/span> as the current layer. Enter the PRESSPULL command. When prompted, select inside the polyline and enter the height of -0.35 as shown below. (Figure Step 4A and 4B)\n\nCommand: PRESSPULL<\/strong>\n\nSelect object or bounded area: Specify extrusion height or [Multiple]:\n\nSpecify extrusion height or [Multiple]: -0.35<\/strong>\n\n1 extrusion(s) created\n\nSelect object or bounded area:\n\nCommand:\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"178\"]\"\" Figure Step 4A[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"178\"]\"\" Figure Step 4B[\/caption]\n

    Step 5<\/h2>\nSave and close the drawing.\n

    Key Principles<\/h1>\n
    \n

    Key Principles in Module 19<\/p>\n\n<\/header>\n

    \n
      \n \t
    1. When constructing solid models, it is important to ensure that the completed solid model consists of one AutoCAD object.<\/li>\n \t
    2. The INTERSECT command is used to create a solid by finding the volume shared by two or more solids.<\/li>\n \t
    3. It is important to use the Chain option when starting a fillet on a solid model that starts and ends at the same That ensures that all the corners are filleted correctly.<\/li>\n \t
    4. It is important to use the Loop option when starting a chamfer on a solid model that starts and ends at the same That ensures that all the corners are chamfered correctly.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n

      Lab Exercise 19-1<\/h1>\nTime allowed: 30 minutes.\n\n\n\n\n
      Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
      AutoCAD 3D Lab 19-1<\/td>\n3D Layout Metric<\/td>\nMillimeters<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Step 1<\/h2>\nOn layer: Solid 3<\/span>, draw a solid model of the object. (Figure Step 1A, 1B, and 1C)\n

      Step 2<\/h2>\nDraw the closed plines on layer: Pline<\/span>.\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"450\"]\"\" Figure Step 1A
      Dimensioned Wireframe Model[\/caption]\n\n
      AUTHOR'S COMMENTS: <\/strong>Since the Top view is a rectangle, you do not have to include it. The model can be obtained from the intersection of the front and right side views only.\n<\/strong><\/div>\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"300\"]\"\" Figure Step 1B Completed Solid Model SE Isometric View[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"300\"]\"\" Figure Step 1C
      Hint[\/caption]\n

      Step 3<\/h2>\nUse the INTERSECT command and the two extruded solids to create the solid model.\n

      Step 4<\/h2>\nTurn layer: Pline<\/span> off and set the current visual style to Realistic.\n

      Step 5<\/h2>\nSet the Insertion Units, change the current UCS to World, and check the model with the key.\n

      Step 6<\/h2>\nSave and close the drawing.\n

      Lab Exercise 19-2<\/h1>\nTime allowed: 40 minutes.\n\n\n\n\n
      Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
      AutoCAD 3D Lab 19-2<\/td>\n3D Layout Metric<\/td>\nMillimeters<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Step 1<\/h2>\nDraw the closed plines on layer: Pline<\/span>.\n

      Step 2<\/h2>\nOn layer: Solid 3<\/span>, draw a solid model of the object shown in the figures. (Figure Step 2A, 2B, and 2C)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"500\"]\"\" Figure Step 2A
      Dimensioned Multiview Drawing[\/caption]\n\n
      AUTHOR'S COMMENTS: <\/strong>Since the Top view is a rectangle, you do not have to include it. The model can be obtained from the intersection of the front and right side views only.\n<\/strong><\/div>\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"300\"]\"\" Figure Step 2B Completed Solid Model SE Isometric View[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"297\"]\"\" Figure Step 2C
      Hint[\/caption]\n

      Step 3<\/h2>\nUse the INTERSECT command and the two extruded solids to create the solid model.\n

      Step 4<\/h2>\nAdd the fillets and chamfers to the solid model.\n

      Step 5<\/h2>\nTurn layer: Pline<\/span> off and set the current visual style to Realistic.\n

      Step 6<\/h2>\nSet the Insertion Units, change the current UCS to World, and check the model with the key.\n

      Step 7<\/h2>\nSave and close the drawing.\n

      Lab Exercise 19-3<\/h1>\nTime allowed: 40 minutes.\n\n\n\n\n
      Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
      AutoCAD 3D Lab 19-3<\/td>\n3D Layout English<\/td>\nInches<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Step 1<\/h2>\nDraw the closed plines on layer Pline<\/span>.\n

      Step 2<\/h2>\nOn layer: Solid 3<\/span>, draw a solid model of the object shown in the figures. (Figure Step 2A, 2B, and 2C)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"450\"]\"\" Figure Step 2A
      Dimensioned Multiview Drawing[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"217\"]\"\" Figure Step 2B
      Location of 0,0,0[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"300\"]\"\" Figure Step 2C Completed Model SE Isometric View[\/caption]\n

      Step 3<\/h2>\nAdd the fillets and chamfers to the solid model.\n

      Step 4<\/h2>\nTurn layer: Pline<\/span> off and set the current visual style to Realistic.\n

      Step 5<\/h2>\nSet the Insertion Units, change the current UCS to World, and check the model with the key.\n

      Step 6<\/h2>\nSave and close the drawing.\n

      Lab Exercise 19-4<\/h1>\nTime allowed: 40 minutes.\n\n\n\n\n
      Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
      AutoCAD 3D Lab 19-4<\/td>\n3D Layout English<\/td>\nInches<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Step 1<\/h2>\nDraw the closed plines on layer: Pline<\/span>.\n

      Step 2<\/h2>\nOn layer: Solid 4<\/span>, draw a solid model of the object shown in the figures. Figure Step 2A, 2B, 2C, and 2D)\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"500\"]\"\" Figure Step 2A
      Dimensioned Multiview Drawing[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"302\"]\"\" Figure Step 2B
      Auxiliary View[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"264\"]\"\" Figure Step 2C
      SE Isometric View[\/caption]\n\n[caption id=\"attachment_863\" align=\"aligncenter\" width=\"264\"]\"\" Figure Step 2D
      Location of 0,0,0[\/caption]\n

      Step 3<\/h2>\nTurn layer: Pline<\/span> off and set the current visual style to Realistic.\n

      Step 4<\/h2>\nSet the Insertion Units, change the current UCS to World, and check the model with the key.\n

      Step 5<\/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 how the UNION, SUBTRACT, and INTERSECT commands are used and applied when solid modeling.<\/li>\n
      2. Apply the INTERSECT, FILLETEDGE, CHAMFEREDGE, and OFFSETEDGE commands to construct and modify solid models.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n

        Working With Composite Solids<\/h1>\n

        When you are constructing solid models, it is important to ensure that the completed solid model consists of only one object. The three commands used to help you to do this are UNION, SUBTRACT and INTERSECT. Study the following figures to help you understand how these commands affect the solid model.<\/p>\n

        Figure 19-1 shows two solid models in which parts of each one occupies the same 3D space. This, of course, would be impossible in real life.<\/p>\n

        \"\"
        Figure 19-1
        Two Solids<\/figcaption><\/figure>\n

        Figure 19-2 shows the same model after the UNION command was used to join the two solids into one.<\/p>\n

        \"\"
        Figure 19-2
        One Solid<\/figcaption><\/figure>\n

        Figure 19-3 shows a shaded model and how the model in Figure 19-1 will appear when the two solids are joined together with the UNION command.<\/p>\n

        \"\"
        Figure 19-3
        One Solid – Joined With UNION Command<\/figcaption><\/figure>\n

        Figure 19-4 shows how the two solids in Figure 19-1 will appear when the cylinder is subtracted from the box using the SUBTRACT command.<\/p>\n

        \"\"
        Figure 19-4
        One Solid – Subtracted<\/figcaption><\/figure>\n

        Figure 19-5 shows how the two models in Figure 19-1 would appear when the box is subtracted from the cylinder using the SUBTRACT command.<\/p>\n

        \"\"
        Figure 19-5
        One Solid
        Subtracted<\/figcaption><\/figure>\n

        Figure 19-6 shows how the solid models in Figure 19-1 would appear if the INTERSECT command is used. Notice how only the volume shared by the two models remains.<\/p>\n

        \"\"
        Figure 19-6
        One Solid
        Intersection<\/figcaption><\/figure>\n
        \n
        \n

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

        \n

        The INTERSECT command is used to create a solid by finding the volume shared by two or more solids.<\/p>\n

        Shortcut: none<\/p>\n

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

        WORK ALONG: Creating a Solid Model by Intersecting Two or Three Solid Models<\/h1>\n

        Step 1<\/h2>\n

        Using the NEW command, start a new drawing using template: 3D Layout English<\/span>.<\/p>\n

        Step 2<\/h2>\n

        Save and name the drawing: AutoCAD 3D Workalong 19-1<\/span>.<\/p>\n

        Step 3<\/h2>\n

        Ensure that the DELOBJ system variable is set to 0.<\/p>\n

        Step 4<\/h2>\n

        Set layer: Pline<\/span> as the current layer, the current UCS to Front, the current view to SE Isometric, and the current visual style to 2D Wireframe.<\/p>\n

        Step 5<\/h2>\n

        Set the current UCS to Front. Using the figures as a reference, draw the contour of the Front view. (Figure Step 5A and 5B)<\/p>\n

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

        Step 6<\/h2>\n

        Using the JOIN command, create a closed polyline. (Figure Step 6)<\/p>\n

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

        Step 7<\/h2>\n

        Set the current UCS to Right and relocate the UCS to the right side as shown in the figure. Using the PLINE command, draw a closed pline of the contour of the right side. (Figure Step 7)<\/p>\n

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

        Step 8<\/h2>\n

        Set the current UCS to Top and relocate it to the top corner of the model as shown in the figure. Using the PLINE command, draw a closed pline of the contour of the top view. (Figure Step 8)<\/p>\n

        \"\"
        Figure Step 8<\/figcaption><\/figure>\n
        AUTHOR’S COMMENTS: <\/strong>The contour of a view is the outside shape of the view as it would appear in a multiview drawing. Do not include any of the interior objects in the view.<\/div>\n

        Step 9<\/h2>\n

        Set layer: Solid 3<\/span> as the current layer. Extrude the Front view the depth of the model. (Figure Step 9)<\/p>\n

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

        Step 10<\/h2>\n

        Set the current visual style to Realistic to see the extruded solid. (Figure Step 10)<\/p>\n

        \"\"
        Figure Step 10<\/figcaption><\/figure>\n

        Step 11<\/h2>\n

        Set the current visual style to 2D Wireframe. Using PRESSPULL, extrude the Right Side and the Top view. Set the current visual style to Realistic to see all three extruded solids at the same time. (Figure Step 11A and 11B)<\/p>\n

        \"\"
        Figure Step 11A<\/figcaption><\/figure>\n
        \"\"
        Figure Step 11B<\/figcaption><\/figure>\n
        AUTHOR’S COMMENTS: <\/strong>You now have the three solids that occupy a portion of the same 3D space. The next step is to create a single solid model of the 3D space that they all share. To do this, use the INTERSECT command.
        \n<\/strong><\/div>\n

        Step 12<\/h2>\n

        Save drawing.<\/p>\n

        Step 13<\/h2>\n

        Set the current visual style to 2D Wireframe. Enter the INTERSECT command, as shown below, to create the common solid from the three intersecting solids. (Figure Step 13)<\/p>\n

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

        Select objects: 1 found<\/p>\n

        Select objects: 1 found, 2 total<\/p>\n

        Select objects: 1 found, 3 total<\/p>\n

        (Select each of the solid models.)<\/em><\/span><\/p>\n

        Select objects:<\/p>\n

        Command:<\/p>\n

        \"\"
        Figure Step 13<\/figcaption><\/figure>\n

        Step 14<\/h2>\n

        Set the current visual style to Realistic. (Figure Step 14)<\/p>\n

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

        Step 15<\/h2>\n

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

        \n
        \n

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

        \n

        The FILLETEDGE command is used to create a fillet (tangent arc) on the edge or edges of a solid model.<\/p>\n

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

        \"\"
        Modify Pull-Down<\/figcaption><\/figure>\n
        \"\"
        Solid Editing Toolbar<\/figcaption><\/figure>\n
        \"\"
        Solid Ribbon<\/figcaption><\/figure>\n<\/div>\n<\/div>\n
        \n
        \n

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

        \n

        The CHAMFEREDGE command is used to create a chamfer on the edge or edges of a solid model.<\/p>\n

        Shortcut:\u00a0 none<\/strong><\/p>\n

        \"\"
        Modify Pull-down<\/figcaption><\/figure>\n
        \"\"
        Solid Editing Toolbar<\/figcaption><\/figure>\n
        \"\"
        Solid Ribbon<\/figcaption><\/figure>\n<\/div>\n<\/div>\n

        WORK ALONG: Creating Fillets and Chamfers on Solid Models<\/h1>\n

        Step 1<\/h2>\n

        Using the NEW command, start a new drawing using template: 3D Layout English<\/span>.<\/p>\n

        Step 2<\/h2>\n

        Save and name the drawing: AutoCAD 3D Workalong 19-2<\/span>.<\/p>\n

        Step 3<\/h2>\n

        Set layer: Pline as the current layer, the current UCS to Front, the current view to SE Isometric, and the current visual style to 2D Wireframe. Create a the closed pline on the Front view using the figures as a reference. Ignore the fillets and rounds. (Figure Step 3A, 3B, and 3C)<\/p>\n

        \"\"
        Figure Step 3A
        Dimensioned Multiview of Model 1<\/figcaption><\/figure>\n
        \"\"
        Figure Step 3B Completed Solid Model of Model 1 –
        SE Isometric View<\/figcaption><\/figure>\n
        \"\"
        Figure Step 3C
        Location of 0,0,0<\/figcaption><\/figure>\n

        Step 4<\/h2>\n

        On layer: Solid 2<\/span>, create a solid model as shown in the figure. Do not include the fillets and rounds. For the hole, extrude a circle. Check to ensure that your model is one solid object only using the Properties window. (Figure Step 4A and 4B)<\/p>\n

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

        Step 5<\/h2>\n

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

        Step 6<\/h2>\n

        Set the current UCS to Top. Copy the solid model, that you completed in Step 4, 8 inches in the positive Y direction. The 8 inches is measured from the same point on model to the same point on the copy. The actual distance between the two model will be 5 inches. (Figure Step 6)<\/p>\n

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

        Apply Steps 7 to 10 to the model on the left side of Figure Step 6.<\/strong><\/span><\/p>\n

        Step 7<\/h2>\n

        Turn layer: Pline<\/span> off. Enter the FILLETEDGE command, as shown below, to fillet the bottom corners. (Figure Step 7)<\/p>\n

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

        Radius = 1.2500<\/p>\n

        Select an edge or [Chain\/Loop\/Radius]: P1 <\/strong><\/p>\n

        Select an edge or [Chain\/Loop\/Radius]: P2<\/strong><\/p>\n

        Select an edge or [Chain\/Loop\/Radius]:<\/p>\n

        2 edge(s) selected for fillet.<\/p>\n

        Press Enter to accept the fillet or [Radius]: R<\/strong><\/p>\n

        Specify Radius or [Expression] <1.0000>: 1<\/strong><\/p>\n

        Press Enter to accept the fillet or [Radius]:<\/p>\n

        Command:<\/p>\n

        \"\"
        Figure Step 7<\/figcaption><\/figure>\n
        AUTHOR’S COMMENTS:<\/strong> I had you turn layer Pline off so that the plines do not get in the way when you are selecting the fillet edges of the model.
        \n<\/strong><\/div>\n

        Step 8<\/h2>\n

        Enter the FILLETEDGE command, as shown below, to fillet the top edge. (Figure Step 8)<\/p>\n

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

        Radius = 1.0000<\/p>\n

        Select an edge or [Chain\/Loop\/Radius]: P3<\/strong><\/p>\n

        select an edge or [Chain\/Loop\/Radius]: C<\/strong><\/p>\n

        (Use the Chain option.)<\/em><\/span><\/p>\n

        Select an edge chain or [Edge\/Radius]: E<\/strong><\/p>\n

        Select an edge or [Chain\/Loop\/Radius]: P4<\/strong><\/p>\n

        Select an edge or [Chain\/Loop\/Radius]: P5<\/strong><\/p>\n

        Select an edge or [Chain\/Loop\/Radius]: P6<\/strong><\/p>\n

        Select an edge or [Chain\/Loop\/Radius]: R<\/strong><\/p>\n

        Enter fillet radius or [Expression] <1.0000>: .125<\/strong><\/p>\n

        Select an edge or [Chain\/Loop\/Radius]:<\/p>\n

        4 edge(s) selected for fillet.<\/p>\n

        Press Enter to accept the fillet or [Radius]:<\/p>\n

        Command:<\/p>\n

        \"\"
        Figure Step 8<\/figcaption><\/figure>\n
        AUTHOR’S COMMENTS: <\/strong>It is important to use the Chain option when the fillet starts and ends at the same corner. When a chain is used, all the corners are filleted correctly.
        \n<\/strong><\/div>\n

        Step 9<\/h2>\n

        Enter the FILLETEDGE command, as shown below, to fillet the top of the hole. (Figure Step 9)<\/p>\n

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

        Radius = 0.1250<\/p>\n

        Select an edge or [Chain\/Loop\/Radius]: P7<\/strong><\/p>\n

        Select an edge or [Chain\/Loop\/Radius]:<\/p>\n

        1 edge(s) selected for fillet.<\/p>\n

        Press Enter to accept the fillet or [Radius]:<\/p>\n

        Command:<\/p>\n

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

        Step 10<\/h2>\n

        Set the visual style to Realistic. The drawing should appear as shown in the figure. (Figure Step 10)<\/p>\n

        \"\"
        Figure Step 10<\/figcaption><\/figure>\n

        Step 11<\/h2>\n

        Referring to the figures, edit the model shown in Steps 11 to 13. (Figure Step 11A and 11B)<\/p>\n

        \"\"
        Figure Step 11A
        Dimensioned Multiview Of Model 2<\/figcaption><\/figure>\n
        \"\"
        Figure Step 11B
        Completed Solid Model of Model 2
        – SE Isometric View<\/figcaption><\/figure>\n

        Apply Steps 12 to 14 to the model on the right side in Figure Step 6.<\/strong><\/span><\/p>\n

        Step 12<\/h2>\n

        Enter the CHAMFEREDGE command, as shown below, to chamfer the bottom corner. (Figure Step 12A and 12B)<\/p>\n

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

        Distance1 = 1.2500, Distance2 = 1.2500<\/p>\n

        Select an edge or [Loop\/Distance]: P1<\/strong><\/p>\n

        Select another edge on the same face or [Loop\/Distance]: D<\/strong><\/p>\n

        Specify Distance1 or [Expression] <1.0000>: 1<\/strong><\/p>\n

        Specify Distance2 or [Expression] <1.0000>: 1<\/strong><\/p>\n

        Select another edge on the same face or [Loop\/Distance]:<\/p>\n

        Press Enter to accept the chamfer or [Distance]:<\/p>\n

        Command:<\/p>\n

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

        Step 13<\/h2>\n

        Enter the CHAMFEREDGE command, as shown below, to chamfer the hole. (Figure Step 13A and 13B)<\/p>\n

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

        Distance1 = 1.0000, Distance2 = 1.0000<\/p>\n

        Select an edge or [Loop\/Distance]: P2<\/strong><\/p>\n

        Select another edge on the same face or [Loop\/Distance]: D<\/strong><\/p>\n

        Specify Distance1 or [Expression] <1.0000>: .15<\/strong><\/p>\n

        Specify Distance2 or [Expression] <1.0000>: .15<\/strong><\/p>\n

        Select another edge on the same face or [Loop\/Distance]:<\/p>\n

        Press Enter to accept the chamfer or [Distance]:<\/p>\n

        Command:<\/p>\n

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

        Step 14<\/h2>\n

        Enter the CHAMFEREDGE command, as shown below, to create a loop chamfer around the top of the model. (Figure Step 14)<\/p>\n

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

        Distance1 = 0.1500, Distance2 = 0.1500<\/p>\n

        Select an edge or [Loop\/Distance]: L<\/strong><\/p>\n

        Select edge of loop or [Edge\/Distance]:<\/p>\n

        Enter an option [Accept\/Next] <Accept>: N<\/strong><\/p>\n

        Enter an option [Accept\/Next] <Accept>:<\/p>\n

        Select edge of loop or [Edge\/Distance]: D<\/strong><\/p>\n

        Specify Distance1 or [Expression] <0.1500>: 0.125<\/strong><\/p>\n

        Specify Distance2 or [Expression] <0.1500>: 0.125<\/strong><\/p>\n

        Select another edge on the same face or [Loop\/Distance]:<\/p>\n

        Press Enter to accept the chamfer or [Distance]:<\/p>\n

        Command:<\/p>\n

        \"\"
        Figure Step 14<\/figcaption><\/figure>\n
        AUTHOR’S COMMENTS: <\/strong>The CHAMFEREDGE command is a little tricky. When you select the edge, the command may highlight wrong plane. Continuing entering N until the correct plane highlights.
        \n<\/strong><\/div>\n
        AUTHOR’S COMMENTS:<\/strong> It is important to use the Loop option when the chamfer starts and ends at the same corner. When a loops is used, all the corners will be chamfered correctly.
        \n<\/strong><\/div>\n

        Step 15<\/h2>\n

        Set the current UCS to Realistic. The final drawing should appear as shown in the figure. (Figure Step 15)<\/p>\n

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

        Step 16<\/h2>\n

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

        \n
        \n

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

        \n

        The OFFSETEDGE command is used to create a closed polyline that is offset at a specified distance from the edges of a selected planar face on a 3D solid or surface.<\/p>\n

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

        \"\"
        Solid Ribbon<\/figcaption><\/figure>\n<\/div>\n<\/div>\n

        WORK ALONG: Creating Fillets and Chamfers on Solid Models<\/h1>\n

        Step 1<\/h2>\n

        Open the drawing: AutoCAD 3D Workalong 19-2<\/span>. Using SAVEAS, save the drawing with the name: AutoCAD 3D Workalong 19-3<\/span> (Figure Step 1)<\/p>\n

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

        Step 2<\/h2>\n

        Set layer: Pline<\/span> as the current layer.<\/p>\n

        Step 3<\/h2>\n

        Using the model on the left, enter the OFFSETEDGE command, as shown below, to create a closed polyline 0.25 inches from the edge. (Figure Step 3A and 3B)<\/p>\n

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

        Corner = Sharp<\/p>\n

        Select face:<\/p>\n

        Specify through point or [Distance\/Corner]: D<\/strong><\/p>\n

        Specify distance <0.1250>: 0.25<\/strong><\/p>\n

        Specify point on side to offset:<\/p>\n

        Select face:<\/p>\n

        Command:<\/p>\n

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

        Step 4<\/h2>\n

        Set layer: Solid 2<\/span> as the current layer. Enter the PRESSPULL command. When prompted, select inside the polyline and enter the height of -0.35 as shown below. (Figure Step 4A and 4B)<\/p>\n

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

        Select object or bounded area: Specify extrusion height or [Multiple]:<\/p>\n

        Specify extrusion height or [Multiple]: -0.35<\/strong><\/p>\n

        1 extrusion(s) created<\/p>\n

        Select object or bounded area:<\/p>\n

        Command:<\/p>\n

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

        Step 5<\/h2>\n

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

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

        Key Principles in Module 19<\/p>\n<\/header>\n

        \n
          \n
        1. When constructing solid models, it is important to ensure that the completed solid model consists of one AutoCAD object.<\/li>\n
        2. The INTERSECT command is used to create a solid by finding the volume shared by two or more solids.<\/li>\n
        3. It is important to use the Chain option when starting a fillet on a solid model that starts and ends at the same That ensures that all the corners are filleted correctly.<\/li>\n
        4. It is important to use the Loop option when starting a chamfer on a solid model that starts and ends at the same That ensures that all the corners are chamfered correctly.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n

          Lab Exercise 19-1<\/h1>\n

          Time allowed: 30 minutes.<\/p>\n\n\n\n\n
          Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
          AutoCAD 3D Lab 19-1<\/td>\n3D Layout Metric<\/td>\nMillimeters<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Step 1<\/h2>\n

          On layer: Solid 3<\/span>, draw a solid model of the object. (Figure Step 1A, 1B, and 1C)<\/p>\n

          Step 2<\/h2>\n

          Draw the closed plines on layer: Pline<\/span>.<\/p>\n

          \"\"
          Figure Step 1A
          Dimensioned Wireframe Model<\/figcaption><\/figure>\n
          AUTHOR’S COMMENTS: <\/strong>Since the Top view is a rectangle, you do not have to include it. The model can be obtained from the intersection of the front and right side views only.
          \n<\/strong><\/div>\n
          \"\"
          Figure Step 1B Completed Solid Model SE Isometric View<\/figcaption><\/figure>\n
          \"\"
          Figure Step 1C
          Hint<\/figcaption><\/figure>\n

          Step 3<\/h2>\n

          Use the INTERSECT command and the two extruded solids to create the solid model.<\/p>\n

          Step 4<\/h2>\n

          Turn layer: Pline<\/span> off and set the current visual style to Realistic.<\/p>\n

          Step 5<\/h2>\n

          Set the Insertion Units, change the current UCS to World, and check the model with the key.<\/p>\n

          Step 6<\/h2>\n

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

          Lab Exercise 19-2<\/h1>\n

          Time allowed: 40 minutes.<\/p>\n\n\n\n\n
          Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
          AutoCAD 3D Lab 19-2<\/td>\n3D Layout Metric<\/td>\nMillimeters<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Step 1<\/h2>\n

          Draw the closed plines on layer: Pline<\/span>.<\/p>\n

          Step 2<\/h2>\n

          On layer: Solid 3<\/span>, draw a solid model of the object shown in the figures. (Figure Step 2A, 2B, and 2C)<\/p>\n

          \"\"
          Figure Step 2A
          Dimensioned Multiview Drawing<\/figcaption><\/figure>\n
          AUTHOR’S COMMENTS: <\/strong>Since the Top view is a rectangle, you do not have to include it. The model can be obtained from the intersection of the front and right side views only.
          \n<\/strong><\/div>\n
          \"\"
          Figure Step 2B Completed Solid Model SE Isometric View<\/figcaption><\/figure>\n
          \"\"
          Figure Step 2C
          Hint<\/figcaption><\/figure>\n

          Step 3<\/h2>\n

          Use the INTERSECT command and the two extruded solids to create the solid model.<\/p>\n

          Step 4<\/h2>\n

          Add the fillets and chamfers to the solid model.<\/p>\n

          Step 5<\/h2>\n

          Turn layer: Pline<\/span> off and set the current visual style to Realistic.<\/p>\n

          Step 6<\/h2>\n

          Set the Insertion Units, change the current UCS to World, and check the model with the key.<\/p>\n

          Step 7<\/h2>\n

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

          Lab Exercise 19-3<\/h1>\n

          Time allowed: 40 minutes.<\/p>\n\n\n\n\n
          Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
          AutoCAD 3D Lab 19-3<\/td>\n3D Layout English<\/td>\nInches<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Step 1<\/h2>\n

          Draw the closed plines on layer Pline<\/span>.<\/p>\n

          Step 2<\/h2>\n

          On layer: Solid 3<\/span>, draw a solid model of the object shown in the figures. (Figure Step 2A, 2B, and 2C)<\/p>\n

          \"\"
          Figure Step 2A
          Dimensioned Multiview Drawing<\/figcaption><\/figure>\n
          \"\"
          Figure Step 2B
          Location of 0,0,0<\/figcaption><\/figure>\n
          \"\"
          Figure Step 2C Completed Model SE Isometric View<\/figcaption><\/figure>\n

          Step 3<\/h2>\n

          Add the fillets and chamfers to the solid model.<\/p>\n

          Step 4<\/h2>\n

          Turn layer: Pline<\/span> off and set the current visual style to Realistic.<\/p>\n

          Step 5<\/h2>\n

          Set the Insertion Units, change the current UCS to World, and check the model with the key.<\/p>\n

          Step 6<\/h2>\n

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

          Lab Exercise 19-4<\/h1>\n

          Time allowed: 40 minutes.<\/p>\n\n\n\n\n
          Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
          AutoCAD 3D Lab 19-4<\/td>\n3D Layout English<\/td>\nInches<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Step 1<\/h2>\n

          Draw the closed plines on layer: Pline<\/span>.<\/p>\n

          Step 2<\/h2>\n

          On layer: Solid 4<\/span>, draw a solid model of the object shown in the figures. Figure Step 2A, 2B, 2C, and 2D)<\/p>\n

          \"\"
          Figure Step 2A
          Dimensioned Multiview Drawing<\/figcaption><\/figure>\n
          \"\"
          Figure Step 2B
          Auxiliary View<\/figcaption><\/figure>\n
          \"\"
          Figure Step 2C
          SE Isometric View<\/figcaption><\/figure>\n
          \"\"
          Figure Step 2D
          Location of 0,0,0<\/figcaption><\/figure>\n

          Step 3<\/h2>\n

          Turn layer: Pline<\/span> off and set the current visual style to Realistic.<\/p>\n

          Step 4<\/h2>\n

          Set the Insertion Units, change the current UCS to World, and check the model with the key.<\/p>\n

          Step 5<\/h2>\n

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