AutoCAD Notes

3D Array
by Lucas W. Nicholson

1. In the VIEW toolbar, select the TOP VIEW option to reset the display.
2. Select the RECTANGLE icon in the DRAW toolbar.

3. On your own, create a rectangle that is 1.0" x .25" toward the upper right side of the solid model.

4. On your own, convert the rectangle into a region.

5. On your own, create a centerline that is 1.125 " below the rectangle with the left endpoint aligned to the center of the rectangle as shown

6. Select REVOLVE in the MODELING toolbar as shown.

7. In the command prompt area, the message "Select objects:" is displayed. Select the rectangular region by clicking on any of the displayed segments.

8. Inside the graphics window, right-mouse-click to accept the selection and proceed with the REVOLVE command.

9. In the command prompt area, the message "Define axis by (object/x(axis)/y(axis)):" is displayed. Pick the lower left corner of the region.

10. In the command prompt area, the message "Specify endpoint of axis:" is displayed. Pick the lower right corner of the region.

11. In the command prompt area, the message "Specify angle of revolution <360>:" is displayed. Enter: 360.0 ENTER

12. In the VIEW toolbar, click on the SE ISOMETRIC VIEW icon.
13. In the pull down menus, select MODIFY-3D OPERATIONS-3D ARRAY.

14. In the command prompt area, the message "Select objects:" is displayed. Select the small cylinder by clicking on any edge of the cylinder.

15. Inside the graphics window, right-mouse-click to accept the selection.

16. In the command prompt area, the message "Enter the type of array (rectangular/polar :" is displayed. Choose the POLAR option by entering: P ENTER

17. In the command prompt area, the message " Enter the number of items in the array:" is displayed. We will create 6 items by entering: 6 ENTER

18. In the command prompt area, the message "Specify the angle to fill (+=ccw, -=cw) <360>:" is displayed. Enter: 360 ENTER
19. In the command prompt area, the message "Rotate arrayed objects? (yes/no) :" is displayed. Enter: N ENTER

20. In the command prompt area, the message "Specify center point of array:" is displayed. Pick the LEFT endpoint of the centerline.

21. In the command prompt area, the message "Specify second point on axis of rotation:" is displayed. Pick the RIGHT endpoint of the centerline.

1. In the VIEW toolbar, select the TOP VIEW option to reset the display. 2. Select the RECTANGLE icon in the DRAW toolbar. 3. On your own, create a rectangle that is 1.0" x .25" toward the upper right side of the solid model. 4. On your own, convert the rectangle into a region. 5. On your own, create a centerline that is 1.125 " below the rectangle with the left endpoint aligned to the center of the rectangle as shown 6. Select REVOLVE in the MODELING toolbar as shown. 7. In the command prompt area, the message "Select objects:" is displayed. Select the rectangular region by clicking on any of the displayed segments. 8. Inside the graphics window, right-mouse-click to accept the selection and proceed with the REVOLVE command. 9. In the command prompt area, the message "Define axis by (object/x(axis)/y(axis)):" is displayed. Pick the lower left corner of the region. 10. In the command prompt area, the message "Specify endpoint of axis:" is displayed. Pick the lower right corner of the region. 11. In the command prompt area, the message "Specify angle of revolution <360>:" is displayed. Enter: 360.0 ENTER

12. In the VIEW toolbar, click on the SE ISOMETRIC VIEW icon. 13. In the pull down menus, select MODIFY-3D OPERATIONS-3D ARRAY. 14. In the command prompt area, the message "Select objects:" is displayed. Select the small cylinder by clicking on any edge of the cylinder. 15. Inside the graphics window, right-mouse-click to accept the selection. 16. In the command prompt area, the message "Enter the type of array (rectangular/polar :" is displayed. Choose the POLAR option by entering: P ENTER 17. In the command prompt area, the message " Enter the number of items in the array:" is displayed. We will create 6 items by entering: 6 ENTER

18. In the command prompt area, the message "Specify the angle to fill (+=ccw, -=cw) <360>:" is displayed. Enter: 360 ENTER 19. In the command prompt area, the message "Rotate arrayed objects? (yes/no) :" is displayed. Enter: N ENTER 20. In the command prompt area, the message "Specify center point of array:" is displayed. Pick the LEFT endpoint of the centerline. 21. In the command prompt area, the message "Specify second point on axis of rotation:" is displayed. Pick the RIGHT endpoint of the centerline.