Wednesday, 30 July 2014

BlueSurf - Modeling an Accelerator Grip

In this tutorial you learn :

 

  • How to model an accelerator Grip using the BlueSurf feature in Solid Edge
  • How to use the cross-curve command
  • The use of extruded surface
  • Trimming surfaces in Solid Edge
  • Thicken surfaces to make solids
    It is assumed that you are familiar with the basics of Solid Edge Part modeling.

    Index of all Solid Edge surfacing tutorials on this blog is here.


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    Why BlueSurf


    The Accelerator grip looks like an obvious revolved protrusion.
    The tricky part here is the grip troughs and crests which can be more easily modeled using BlueSurf.

     

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    Revolved Surface


    Click the Revolved Surface   revsurf   tool on the Surfacing toolbar.
    Sketch on the x-z plane as shown in figure.
    The sketch has two vertical lines and a horizontal line at the bottom.
    Also, sketch an axis as shown in figure.
    The sketch will revolve about the axis to form a revolved surface.

     



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    Parallel Plane


    Create a parallel plane to the x-y plane as shown in figure.

     

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    Position of Plane


    Place the new plane well above the revolved surface.
    See figure on right.

     

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    Sketch on the Plane


    Sketch a rectangle on the nascent plane as shown.

     

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    Project the Curve


    Click the Project Curve   projcurv   tool on the Surfacing toolbar.
    Select the rectangle as the curve to project as shown in figure.
    Click accept  
    accept   on the ribbon bar.

     


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    Specify the surface


    Select the revolved surface as the object to project onto.

     

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    Projection Direction


    Indicate the direction towards the revolved surface as shown in figure.

     

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    Curve is Projected


    The curve is projected on the revolved surface.

     

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    Hide the sketch


    Click Finish on the ribbon bar.
    Hide the sketch.
    Your figure should look like as shown on the right.

     

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    Split the curve


    Click the Split Curve   splitcur   tool on the Surfacing toolbar.
    Select one of the projected curves as the curve to split - as shown in figure.
    Click accept  
    accept[4]   on the ribbon bar.

     



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    Who will Split the Curve


    Select Plane from the list on the ribbon bar.

     

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    Specify Splitting Plane


    Select the x-y plane as the splitting plane.
    Click accept  
    accept[6]   on the ribbon bar.

     

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    The Curve is Split


    The curve is split.
    Keypoints appear at two places on each curve where the x-y plane intersect them.

     

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    Keypoint Curve


    Click the Keypoint Curve   keycurve   tool on the Surfacing toolbar.
    Move the pointer on the split curve and when the endpoint mark appears - click (see figure).

     

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    Draw the Curve


    Click on the corresponding point on the other split curve.
    Click accept  
    accept[8]   on the ribbon bar.

     

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    Another One


    Similarly, create another keypoint curve on the other side.

     

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    Trim the Surface


    Click the Trim Surface   trimsurf   tool on the Surfacing toolbar.
    Select the revolved surface as the surface to trim.

     

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    Trimming Curves


    Select the four curves as trimming curves (see figure).
    Click accept  
    accept[10]   on the ribbon bar.

     

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    Which side to remove


    Specify the side as shown in figure.

     

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    Surface is Trimmed


    The surface in the direction of the arrow is removed.


    The revolved surface is hollowed out.

     

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    Sketch a Spline


    Sketch   sketch   a spline in the x-z plane.

     

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    Something Like This


    The figure on right should give an even clearer idea.

     

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    The meaty part

    Click the BlueSurf   bluesurf   tool on the Surfacing toolbar.
    Select the split curve on the near side as shown in figure.
    Click accept  
    accept[12]   on the ribbon bar.

     


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    The Guide Curve
    Click the Guide Curve step  
    guidecur   tool on the ribbon bar.
    Select the straight curve on the near side as shown in figure.
    Click accept  
    accept[14]   on the ribbon bar.

     


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    The Guide Curve


    The BlueSurf is created.
    This surface simply closes the opening created by trim surface.
    It needs some more guidance.

     

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    Another Guide Curve
    Still in the Guide Curve step  
    guidecur[4]   select the spline.
    Click accept  
    accept[16]   on the ribbon bar.

     

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    Preview and Finish


    The required blue surface (crest and trough) is created.
    Hide all sketches  
    hidesket

     

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    Stitch it together
    Click the Stitched Surface tool  
    stitchsu   tool on the Surfacing toolbar.
    Select the two surfaces (revolve-trimmed and BlueSurf)
    Click accept  
    accept[18]   on the ribbon bar.

     

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    Stitch it together


    Solid Edge exclaims that the stitched surfaces resulted in a solid body.
    With no other significant button to click on this dialog, press Enter.

     



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    Stitch it together


    Its only after stitching the surfaces that you can apply rounds and other features to it.

     

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    Stitch it together


    And finally a brief summary of the commands and their sequence.

    Index of Solid Edge surfacing tutorials on this blog is here.

    Do you know what cMayoCAD is…?

    cMayoCADH

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