Autocad Lecture 2 Introduction to Modify Toolbar

1. Autocad Lecture 2Introduction to Modify Toolbar University of Illinois at Chicago, Spring 2013, ME 250 By Sin-Pui Fu 13 February, 2013

2. Modify Toolbar • 1. Copy • 2. Mirror • 3. Trim • 4. Fillet • 5. Array • 6. Rotate • 7. Move

3. Function 1: Copy (co) • Step1: type command “co” • Step2: select object(s) • Step3: select a base point • Step4: Select a second displacement point Original Base point

4. Function 2: Mirror (mi) • Step1: type command “mi” • Step2:select objects • Step3: select a first point of mirror line • Step4: select a second point of mirror line Original Mirror line

5. Function 3: Trim (tr) • Step1: type command “tr” • Step2: select the first objects • Step3: select the second objects • Step4: select the object within the first and second objects • Step5: press ESC First selection (step2) Step4 second selection (step3)

6. Function 4: Fillet (f) • Step1: type command “f” • Step2: type “R” for radius • Step3: specify the radius • Step4: select the first object • Step5: select the second object Fillet Fillet

7. Function 5: Chamfer • Step1: type command “chamfer” • Step2: type “distance” • Step3: specify first distance • Step4: select second distance • Step5: select the first object • Step6: select the second object

8. Function 5: Rectangular type of Array (ar) • Step1: type command “ar” • Step2: select objects • Step3: enter type of array (Rectangular/Polar) • Step4: enter the number of rows • Step5: enter the number of columns • Step6: enter the distance between rows • Step7: enter the distance between columns Original

9. Function 5: Polar type of Array (ar) • Step1: type command “ar” • Step2: select objects • Step3: enter type of array (Rectangular/Polar) • Step4: specify the center point • Step5: enter the number of items • Step6: specify the angle to fill Center point of rotating axis Original

10. Function 6: Rotate (rotate) • Step 1: type command “rotate” • Step2: select objects • Step3: specify base point • Step4: specify rotation angle Base point

11. Function 7: Move (m) • Step1: type command “m” • Step2: select objects • Step3: specify base point • Step4: select a second displacement point Original Base point

12. Example 1: Drawing a Guitar

13. Step1: specify the points to draw lines • Step2: specify the center points to draw circles • Step3: draw lines to connect the circle and make the lines tangent to the circles • Step4: use “Trim” function to delete lines • Step5: use “Mirror” function to reflect another half side of guitar.

14. Use “Line” and “Circle” to draw half of guitar

15. Draw tangent line to connect the circles • Step1: type command “l” • Step2: type “tan” • Step3: select the first circle • Step4: type “tan” • Step5: select the second circle

16. Use “Trim” function to delete the lines First selection Second selection

17. Use “Mirror” function to create another half of guitar

18. Example 2: Drawing a Gear

19. Create three circles

20. Draw a line through the center of the circle

21. Use “Array” function to draw 96 lines in the circles

22. Use “fillet” to create gear teeth

23. Trim the outer circle First selection Second selection

24. Use array to create more teeth around the circle

26. Reminder and Tips • Turn on “Ortho Mode” to draw a straight line • Turn on “Object Snap Mode” to draw an object • Attach the title block • Practice

27. Cheating ?