Question About RebuildEdges and Tiny Surface Gaps

[brvdln (Brv)]

@Gijs When I run RebuildEdges, as shown in this example, I notice that in the area I’m zooming into the surfaces no longer touch. The gap is extremely small, but if I want to eliminate it—for example by using MatchSrf—it doesn’t seem to work for such tiny distances. Is there a setting I should change?
Are there any recommended solutions for cases like this that don’t involve manually moving the surface with control points?

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test fillet patch.3dm (1.2 MB)

[Gijs (Gijs de Zwart)]

RebuildEdges recovers the original surface edges within the set tolerance. Edges that appear to have no gaps can be a result of joining within tolerance, or from a forced Join out of tolerance.
There is no other way to fix this than actually moving the surfaces / edges. How did those surfaces get created?

[brvdln (Brv)]

This is a file I downloaded from another user here, @DM9. I’m not sure how it was created or whether it came from Rhino or another CAD program.

Rhino BETA Feature: Patch re-implemented

Here is an example, when filling in that surface as untrimmed, the U and V selectors as well as the refine option do nothing. The resulting surface looks fine, but I would like to have control over the points, since I might e.g. use that surface to recreate the surrounding ones. [image] main surface.3dm (269.6 KB)

I noticed that area from “GEC”.

[brvdln (Brv)]

In the end, I rebuilt that surface. If you turn on the control points, you can see that they’re part of a larger surface. After fixing the defective area (even though it was a very small one), the BlendSrf I created afterwards came out much better.

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new

[brian (Brian Gillespie)]

RH-97002 is fixed in Rhino BETA