BlendSrf

Creates a continuous blend surface between two surfaces.

Steps:

  1. Select

    a surface edge.

  2. Select adjacent edges or press Enter

    .

  3. Select the edges to blend to and press Enter

    .

  4. Select adjacent edges or press Enter

    .

  5. Select and adjust control points or press Enter

    .

Options

AutoChain/ChainContinuity

PlanarSections

Forces all shape curves to be planar and parallel to the specified direction.

AddShapes

Add additional curve profile shapes to increase control over the blend surface shape. This is especially important if the input shapes are complex and you want to control the shape in more locations.

Click a location on each surface edge to add another shape curve.

Continuity_1/Continuity_2

Keys for control

Alt

By default the shape curves are perpendicular to the surface edge or parallel to the surface isocurves.

If the edge is trimmed, the shapes are perpendicular to the surface edge.

If the edge is untrimmed, the shapes are parallel to the surface isocurves.

Hold the Alt

key while dragging the handles to change the angle between the shape curve and the surface edge.

Shift

By default the shape curves are separately edited at each end, Hold the Shift

key to retain symmetry. With symmetry, point editing is mirrored to the other end of the curve.

Adjust Curve Seams

Adjust Blend Bulge Dialog Box Options

Lock

Select the Lock checkbox to maintain the relationship between the two curve ends.

Slider

Rhinoceros blendsrf 020 Blend

Determines the distance of influence the surface has on the edge curve.

Select the checkbox (1) to lock the sliders to each other.

Sliders control each curve end (2).

Same height shapes

If the gaps between the surfaces vary, this option maintains the height of the shape curves throughout the blend.

Preview

Displays the potential surface in a shaded preview.

Notes

  • If you try to create a blend between a surface and a hole in another surface that is exactly the same size as the surface, Rhino will be forced to make the blend surface dip in quite a bit so it is smooth to both surfaces.

  • Rhinoceros blendsrf 002 Blend
    Hole the same size as surface.

    Rhinoceros blendsrf 004 Blend
    Hole larger than surface.

  • If the edges of two surfaces you are trying to blend share a corner intersection, the BlendSrf command will select all the contiguous edges as one. To choose the second edge separately, press Enter

    after choosing the first edge, then choose the edge of the second surface.

  • Sometimes some holes appear in rendering between blend surfaces and their original surfaces appear in rendering. This is because the rendering was done with polygon mesh approximations of the true surfaces, so the meshes are not matching up exactly.

  • Use the Join
    command to join them together into one object so the rendering and meshing won’t have any cracks in it and will match up exactly.

Rhinoceros blendsrf Blend

Surface Tools > Blend Surface

Rhinoceros Menu2 Blend

Surface > Blend Surface

Rhinoceros Gray Book Open Blend Related topics…

VariableBlendSrf

Creates a blend surface between surface edges with varying radius values, trims the original surfaces faces, and joins the resulting surfaces.

Steps:

  1. Select

    the surfaces.

  2. Type the radius distance.

  3. Pick

    a radius location.

Options

CurrentRadius

Specifies the radius for the current handle.

AddHandle

Adds a handle along the edges.

CopyHandle

Adds a new handle using the radius from the selected handle.

SetAll

Set the radius for all handles.

LinkHandles

If Yes, editing a single handle will update all handles.

RemoveHandle

Visible only when at least one handle has been added.

Notes:

  • Only added handles can be removed.

  • The default handles at the ends of each open edge segment cannot be moved or deleted. This is the minimum information the command needs in order to work.

  • The handle at the end of a single closed edge can be moved but not deleted.

RailType

Selects between three rail type options.

DistBetweenRails

DistFromEdge

RollingBall

Preview

Preview the surface.

 

Rhinoceros VariableBlendSrf Blend

Surface Tools > Variable Radius Surface Blend (Right click)

Rhinoceros Menu2 Blend

Surface > Variable Fillet/Blend/Chamfer > Variable Blend Surfaces

Rhinoceros Gray Book Open Blend Related topics…

BlendEdge

Creates a curvature continuous blend surface between multiple polysurface edges with varying radius values, trims the original faces, and joins the blend surfaces to them.

Steps:

  1. Select

    edges.

  2. Select a handle.

Options

CurrentRadius

Specifies the radius for the current handle.

AddHandle

Adds a handle along the edges.

CopyHandle

Adds a new handle using the radius from the selected handle.

SetAll

Set the radius for all handles.

LinkHandles

If Yes, editing a single handle will update all handles.

RemoveHandle

Visible only when at least one handle has been added.

Notes:

  • Only added handles can be removed.

  • The default handles at the ends of each open edge segment cannot be moved or deleted. This is the minimum information the command needs in order to work.

  • The handle at the end of a single closed edge can be moved but not deleted.

RailType

Selects between three rail type options.

DistBetweenRails

DistFromEdge

RollingBall

TrimAndJoin

If Yes, the surfaces are trimmed and joined to the blend.

Preview

Preview the surface.

Rhinoceros BlendEdge Blend

Solid Tools > Variable Radius Blend (Right click)

Rhinoceros Menu2 Blend

Solid > Fillet Edge > Blend Edge

Rhinoceros Gray Book Open Blend Related topics…

 

Blend