Creates a continuous blend surface between two surfaces.
Steps:
-
Select a surface edge.
-
Select adjacent edges or press Enter
.
-
Select the edges to blend to and press Enter
.
-
Select adjacent edges or press Enter
.
-
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
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.
-
Hole the same size as surface.
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.
|
Surface Tools > Blend Surface
Surface > Blend Surface
|
Related topics…
Creates a blend surface between surface edges with varying radius values, trims the original surfaces faces, and joins the resulting surfaces.
Steps:
-
Select
the surfaces.
-
Type the radius distance.
-
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.
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.
Preview
Preview the surface.
|
Surface Tools > Variable Radius Surface Blend (Right click)
Surface > Variable Fillet/Blend/Chamfer > Variable Blend Surfaces
|
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:
-
Select edges.
-
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.
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.
TrimAndJoin
If Yes, the surfaces are trimmed and joined to the blend.
Preview
Preview the surface.
|
Solid Tools > Variable Radius Blend (Right click)
Solid > Fillet Edge > Blend Edge
|
