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

    be 10 mm in radius.

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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.

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