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Tutorial
Surface Modeling - A Pair of Goggles - Part 2

Tushar Suradkar
www.oocities.org/SeGuruCool

  segurucool @ indiatimes.com


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    Trim Surface - Surface Step


    Select the Trim Surface     tool from the Surfacing toolbar.

    Select the Bluesurf as the surface to trim.






    Trim Surface - Curve Step

    Select the projected curves as the trimming curves.

    Click accept     on the ribbon bar.





    Trim Surface - Side Step

    Indicate the arrow pointing away from the frame as the part to trim off.

    See figure.





    Surface Trimmed

    The Bluesurf is trimmed as shown in figure.

    Also, I have applied Steel to it using the Part Painter.





    Normal Plane

    Click on the Plane Normal to Curve tool on the features toolbar.





    Specify the Curve

    Select the goggle frame curve as shown in figure.





    Plane Created

    Click at the end point of the curve as shown in figure in last step.

    The plane is created as seen in figure.





    Sketch the Cross Section

    Sketch a small circle in the newly created plane.

    See Figure.

    This circle is the crosss section of the goggle frame.





    Sweep

    create a swept protrusion using the circle as cross section and the projected curve as path.

    Also create the frame for the other frame in the pair.

    Connect the two frame with another swept protrusion along an arc that connects the two frames.

    See figure.





    Surface to Solid


    Click the Thicken     tool on the Features toolbar.

    The Thicken tool is in the same flyout as the Thin Wall and Thin Region tools.

    Select the Trimmed Bluesurf as the surface to thicken.

    Use a small value of 1 mm to thicken in any direction.

    Using Part Painter, apply White (clear) to the bluesurf.





    The EarRest

    Next, we will create the ear-rest for the goggle.






    EarRest - Top View

    This is not a simple protrusion.

    When viewed from the top, the ear-rest is bent at two places.

    First, where the free end goes behind the ears to See figure.





    EarRest - Front View

    Create a sketch in the x-z plane for the front view.

    See figure.





    EarRest - Top View

    Create a sketch in the x-y plane for the top view.

    As shown in figure, align the ends with the extremes of the front view.





    Cross Curve


    Select the Cross Curve command from the Surfacing toolbar as shown.





    First Curve


    Select the front view curve as the first curve.

    Click accept     on the ribbon bar.





    Second Curve


    Select the top view curve as the second curve.

    Click accept     on the ribbon bar.





    Cross Curve


    Click Finish on the ribbon bar.

    Soon the cross curve is formed.

    The cross curve is neither in the top plane nor in the front plane.

    It is bent as pointed in the figure besides.





    Bounded Surface

    Hide all sketches.

    Click the Bounded Surface     tool from the Surfacing toolbar.

    Drag a window around the cross curve to select it.

    See figure.






    Bounded Surface Done

    Click accept   Preview and Finish in that order.

    A bounded surface will be formed as shown in figure.





    Surface to Solid


    Click the Thicken     tool on the Features toolbar.

    Select the bounded surface as shown in figure.

    Specify the direction to thicken as shown in figure

    Type a value for the thickness of the fork in the ribbon bar.

    Click Finish on the ribbon bar.





    Surface to Solid Done

    This makes it a solid thing.





    Assemble It

    Finally, assemble the goggle with the kadi and wear it.




    Click Here to go to previous part of this tutorial

    Tushar Suradkar     segurucool @ indiatimes.com

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