> = 8:16 E 5G Q TT : Draw Command Concepts 65 CHAPTER EXERCISES 1. Start a New Drawing Start a new drawing from the ACAD.DWT template. Type Z at the command line (command alias for Zoom) and enter. Then use A for the zoom All option. Next, use the Save command and save the drawing as CH3EX1. Remember to Save often as you complete the following exercises. 2. Use Mouse Input Draw a square with sides of 2 unit length. Locate the lower- left corner of the square at 2,2. Use the Line command with mouse input. (HINT: Turn on Grid Snap, Grid, and Polar Tracking.) 3. Use Dynamic Input FIGURE 3-29 до Draw another square with 2 unit sides using the Line command. Turn on Dynamic Input. Enter the correct values into the edit boxes. 4. Use Command Line Input Draw a third square (with 2 unit sides) using the Line command. Turn off Dynamic Input. Enter coordinates in any format at the Command line. 5. Use Direct Distance Entry Draw a fourth square (with 2 unit sides) beginning at the lower-left corner of 2,5. Ensure that Dynamic Input is off. Complete the square drawing Lines using direct distance coordinate entry. Don't forget to turn on Ortho or Polar Tracking. 6. Use Dynamic Input and Polar Tracking Draw an equilateral triangle with sides of 2 units. Turn on Polar Tracking and Dynamic Input. Make the appropriate angular increment settings in Drafting Settings dialog box. Begin by locating the lower-left corner at 5,5. (HINT: An equilateral triangle has interior angles of 60 degrees.) 7. Use Mouse Input Turn on Snap and Grid. Use mouse input to draw a Circle with a 1 unit radius. Locate the center at 9,6. 8. Use any method Draw another Circle with a 2 unit diameter. Using any method, locate the center 3 units below the previous Circle. 9. Save your drawing Use Save. Compare your results with Figure 3-29. When you are finished, Close the drawing. AA > 65 ‹ ☐ platform.virdocs.com = 8:16 5G 66 Chapter 3 10. In the next series of steps, you will create the Stamped Plate shown in Figure 3-30. Begin a New drawing. Use the ACAD.DWT template. Next, type Z at the command line (command alias for Zoom) and enter. Then enter A for the All option. Next, use the Save command and assign the name CH3EX2. Remember to Save often as you work. FIGURE 3-30 + 11. First, you will create the equi- lateral triangle as shown in Figure 3-31. All sides are equal and all angles are equal. To create the shape easily, you should use Polar Tracking with Dynamic Input. Access the Polar Tracking tab of the Drafting Settings dialog box and set the Increment Angle to 30. (Or, you can right-click on the Polar Tracking icon and select 30 from the shortcut menu.) On the Status Bar, make sure Polar Tracking and Dynamic FIGURE 3-31 (3,3) 2:5 ALL SIDES + Input are on, but not Snap, Ortho, Object Snap, Object Snap Tracking or Dynamic UCS. Grid is optional. 12. Use the Line command to create the equilateral triangle. Start at position 3,3 by entering absolute coordinates. All sides should be 2.5 units, so enter the distance values at the keyboard as you posi- tion the mouse in the desired direction for each line. The drawing at this point should look like that in Figure 3-31 (not including the notation). Save the drawing but do not Close it. > > 66 ‹ ☐ AA platform.virdocs.com > = 8:21 152 Chapter 8 4. Open CHSEX. Create the shape shown in Figure 8-30. Draw the two horizontal Lines and the vertical Line first by specifying the endpoints as given. Then create the Circle and Arcs. SaveAs CH8EX4. HINT: Use the Circle 2P method with Endpoint Object Snaps. The two upper Arcs can be drawn by the Start, End, Radius method. 5G FIGURE 8-30 6,8 R10 3,5 4.4,5 7.6,5 9,5 5. Open CHSEX. Draw the shape shown in Figure 8-31. Assume symmetry along a vertical axis. Start by drawing the two hori- zontal Lines at the base. Next, construct the side Arcs by the Start, Center, Angle method (you can specify a negative angle). The small Arc can be drawn by the 3P method. Use Object Snaps when needed (especially for the horizontal Line on top and the Line along the vertical axis). SaveAs CH8EX5. 6. Open CHSEX. Complete the geometry in Figure 8-32. Use the coordinates to establish the Lines. Draw the Circles using the Tangent, Tangent, Radius method. SaveAs CH8EX6. FIGURE 8-31 1.00 2.50 1.50- FIGURE 8-32 (3) @-4,4 $2.00 AA 2.2 (1) $1.00 45° 08.0 (2) > 152 ‹ ☐ platform.virdocs.com = 8:21 1. Open CHSEX. Create the geometry shown in Figure 8-27. Start the first Circle center at point 4,4.5 as shown. Do not copy the dimensions. SaveAs LINK (HINT: Locate and draw the two small Circles first. Use Arc, Start, Center, End or Center, Start, End for the rounded ends.) 2. Open CHSEX. Create the geometry as shown in Figure 8-28. Do not copy the dimensions. Assume symme- try about the vertical axis. SaveAs SLOTPLATE CH8. 5G Q TT : Draw Commands | 151 FIGURE 8-27 4.00 FIGURE 8-28 2X 1.00- $1.00 4.00 4,4.5 8.00 1.50- 5.00 4X R1.00- 1.00 -2.00 2.00 4.00- 8.00 FIGURE 8-29 4 TYP. 3. Open CHSEX. Create the shapes shown in Figure 8-29. Do not copy the dimensions. SaveAs CH8EX3. Draw the Lines at the bottom first, starting at coordinate 1,3. Then create Point objects at 5,7, 5.4,7, 5.8,7, etc. Change the Point Style to an X. Use the NODe Object Snap mode to draw the inclined Lines. Create the Arc on top with the Start, End, Direction option. 1,3. > AA 2.0 TYP. 1.50 T 1.00 5.00 1.00 4.00 1.00 L © REUSE U REUSE > 151 ‹ ☐ platform.virdocs.com = 8:17 E 5G Q TT : 13. Next, create the outside shape FIGURE 3-32 (Fig. 3-32). Since the dimen- sions are all at even unit inter- vals, use Grid Snap to create the rectangle. (HINT: Right- click on the icon and check Grid Snap.) At the Status Bar, make sure that Snap and Polar are on. Use the Line command to create the rectan- gular shape starting at point 2,2 (enter absolute coordi- nates). Draw Command Concepts 67 A 5.0000 14. The two inside shapes are easily created using Polar Tracking in combination with Polar Snap. Access the Grid and Snap tab of the Drafting Settings dialog box. (HINT: (2.2) 6.0000 Right-click on the Snap icon and select Snap Settings.) Set the Snap Type to Polar Snap and set the Polar Distance to .5. At the Status Bar, make sure that Snap, Polar Tracking, and Dynamic Input are on. Next, use the Line command and create the two shapes as shown in Figure 3-33. Specify the starting posi- tions for each shape (5.93,3.25 and 6.80,3.75) by entering absolute coordinates. Each rectangular shape is .5 units x 2.5 units. 15. When you are finished, Save the drawing and Exit AutoCAD. FIGURE 3-33 9 100 (6.80.3.75) C(5.93,3.251 < > 67 ( ☐ Reader Available