# sketcher catia

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CATIA TUTORIAL

SKETCHER

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We are going to sketch the

following:

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1. Go to Start Mechanical Design Sketches.

2. Select a plane. (Click on the XY plane).

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3. Click on this icon to create a rectangle.4. Next, put the dimension as below using the

constraint icon .

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5. Double click at the dimensions. Put in the following:

length along x axis 120, length along y axis 163.

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6. Create 4 circles using the circle icon .

7. Modify the dimensions of each of the circles to

be of radius 25, 20, 10 and 10 mm respectively.

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8. Click on the vertical line. Then press Ctrland click onthe circle (R25).

9. Click constraint define in dialog box . Click on tangent

in the dialog box.

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10.Repeat the procedure by clicking the horizontal line andthe circle. You should get as the picture below.

11. Repeat the procedure with the R20 circle.

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12. Add lines into the sketch.

13. Align the lines accordingly with circles.

14. Tangent the lines with the circles where necessary.

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15. Click on the lines tangential to the circle R25 (use Ctrl),then the constraint icon.

16. Modify the angle to 15 .

17. Repeat the same procedure for the circle R20. Modifythe dimension to be 25 .

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18. Click on the Quick Trim icon to trim off the

unwanted parts. Your sketch should look like the picture

below once trimming is done.

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19. Click on the vertical line and the axis to which you wantthe line to coincide with.

20. In the constraint definition dialog box, click on

coincidence.

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21. Add circles to the sketch as shown. The circle above

should be 15 mm in radius while the circle below should

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22. Make a horizontal line 35 mm from the vertical line.

23. From the end of the line, make a vertical line (the

length of the line to be decided by you.)

24. Trim the 35 mm horizontal line.

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25. Click on the all remaining parts of the sketch.

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25. Click on the mirror icon to mirror the image.

26. Click on the coincidence axis when prompted.

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27. Make a circle at the bottom of the sketch and make aline to tangentially align the circle.

28. Repeat the procedure with another circle on the other

side.

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29. Trim the necessary elements.

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30.Find the elongated hole icon and click on it to create anelongated hole as shown.

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31. Click on the middle line of the sketch and the middleline if the elongated hole

32. Coincide the two lines.

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33. The elongated hole will move to the middle of the

sketch.

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FINISH SKETCH TUTORIAL

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Extra: Try making the following using line, spline and arc

commands.