Surface intersection not found

Rhino
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1

Hi All,

Today I’m having an issue with a pair of surfaces that intersect, but the _Intersect command can’t find the curve.
Can someone tell me what is happening? I tried with V9 and 8.

image
image1499×840 101 KB

Intersection Issue_260424.3dm (98.5 KB)

2

I don’t know why this happens, but if you are looking for a workaround:

run _InsertKnot on the blue surface in V direction (automatic once), then intersect, copy the curve and undo the change to the surface, and paste the curve back in.

I’ve logged it as RH-95031 No surface intersection found

3

I found another workaround: split the surface, e.g.:

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image763×559 57.9 KB

4

Thanks @Gijs ,yes, I splitted the big surface with isocurve to get a smaller surface near the area of contact, and it worked as expected.