Difficult grid

Hello, I am interested in such question - if to create a surface on a grid of curves and to use Blend Surfaces - whether it is possible to create the correct smoothing?

1.3dm (162.2 KB)

You have not explained clearly what you want.

Try to use Blend Surfaces for smoothing of 2 surfaces (in the enclosed file) - bad result

Yes it is possible 1x.3dm (174.3 KB)

You have created new surfaces :wink:
Interests me - whether it is possible to smooth the available surfaces through Blend Surfaces?

BlendSrf creates new surfaces. It does not modify existing surfaces.

There is a particular reason for keeping this suface density ?
Blend fail, you can try with a sweep 2.

1-Sweep.3dm (1.4 MB)

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The rounded corners where the u and v isolines become tangent can cause problems. An alternative approach is to create a square/rectangular surface with the desired shape. For your example with the planar surfaces a simple plane can be used. Then trim the corners as desired.

Build the blend surfaces to the trimmed edges.

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@davidcockey, @Cyver, I am aware what it is possible to use the Sweep 2 tool or in general to cut off initial surfaces, I want to learn - whether it is possible to use somehow in my case Blend Surfaces and to receive good result?

Jim in his post provided an example using a trimmed surface.

As I said above problems frequently occur when trying to use surfaces where where the u and v isolines become tangent such as in your corners. That is the cause of the problems using BlendSrf in your example.

I used BlendCrv to create a cross section of a blend surface, then Sweep2 to create the blend surfaces. See attached file. 1 DC.3dm (674.0 KB)

I will mean! :slightly_smiling_face:

You asked if it can be done. I showed you the sensible way to do it.

If you take a simple uncomplicated surface and turn it into a degenerate complicated surface you are going to have problems with lots of commands - not just blendsrf.


You can do this as a single surface with Rail revolve.


Good idea! :grinning: