How do you create a surface in fillet corners like this?
Is it possible to get G1 on every edge here?
This is a general question about similar situations like this.
How would you expect to get G1 on all edges when 2 of them meet at 90 degrees?
Most of these complex filleting problems become 10X easier when you use FilletSrf instead of FilletEdge. Extend those two fillets until they intersect, then how to proceed will become much clearer.
I solve it like this but I am not sure is okay or maybe there is a better solution.
I could do that G0 triangle even smaller.
Can you send 3D of that immediate area?
I’m on the edge of my seat 
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Jim is correct to suggest the fillet surface and extend to identify the edge in the corner.
Attached an example; I used network srf and some blendcrvs.
LZ_Blend.3dm (259.8 KB)
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here’s another way: you could split the edge at the matching point to the other edge, then make a blend surface and fill in the rest with a patch:
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I did something like you but I used Xnurbs and edgesurf with matchSrf. Your patch looks better. Thanks
yes that was going to be my second suggestion, to replace the patch with an edge surface. This way you still have ways to match. The patch isn’t going to be very precise
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Your picture shows it best. Why would there be a square corner below that fillet?—-Mark
not sure what you are referring to?
I think he asks about that.
That small triangle is moving dirt under the carpet. The problem is still there but is smaller 
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That’s really cool 
Imma start using that 
, at my dayjob ppl ‘move dirt under the carpet’ alot
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Thank you guys. I feel now that I know more ways now to handle that type of problem.
The beauty of Rhino’s surgical tools:
Oh I see now the challenge is the offset edges. I wasn’t sure how anyone got the file…
I wonder what Plasticity would do… It might fail, depending on order of operations or something.
Would probably have to invent a ‘solid’ example haha.
there is no file, I just made something that looked similar
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what you call dirt under the carpet, is in fact a mathematical impossibility. You will have to end up with some sort of compromise. I don’t have XNurbs here right now, but I bet you get a similar result, where you have to select some edges to stay G0
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Hi Gijs, it was below all the filleting. Doesn’t seem like sharp corners are good. That’s all.—-Mark
I see, well, I would try to avoid that as well, but that might be design intent. I can’t tell.
You are right. It was designed like that.