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.


  • t0201

    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.

     

    t0202

    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.

     



    t0203

    Parallel Plane


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

     

    t0204

    Position of Plane


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

     

    t0205

    Sketch on the Plane


    Sketch a rectangle on the nascent plane as shown.

     

    t0206

    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.

     


    t0207

    Specify the surface


    Select the revolved surface as the object to project onto.

     

    t0208

    Projection Direction


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

     

    t0209

    Curve is Projected


    The curve is projected on the revolved surface.

     

    t0210

    Hide the sketch


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

     

    t0211

    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.

     



    t0212

    Who will Split the Curve


    Select Plane from the list on the ribbon bar.

     

    t0213

    Specify Splitting Plane


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

     

    t0214

    The Curve is Split


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

     

    t0215

    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).

     

    t0216

    Draw the Curve


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

     

    t0217

    Another One


    Similarly, create another keypoint curve on the other side.

     

    t0218

    Trim the Surface


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

     

    t0219

    Trimming Curves


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

     

    t0220

    Which side to remove


    Specify the side as shown in figure.

     

    t0221

    Surface is Trimmed


    The surface in the direction of the arrow is removed.


    The revolved surface is hollowed out.

     

    t0222

    Sketch a Spline


    Sketch   sketch   a spline in the x-z plane.

     

    t0223

    Something Like This


    The figure on right should give an even clearer idea.

     

    t0224

    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.

     


    t0225

    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.

     


    t0226

    The Guide Curve


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

     

    t0227

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

     

    t0228

    Preview and Finish


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

     

    t0229

    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.

     

    t0230

    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.

     



    t0231

    Stitch it together


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

     

    t0201[4]

    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

    t0232

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