5 Sided Hole

How should I proceed?
Please help in rhino6 format.

train_1.3dm (373.0 KB)

Hi @hunterofrhino
The quick way is to DupEdge the highlighted edges


and then build a Patch using the curves for those edges and the edge of the surface from the remaining surface (with Adjust tangency" turned on)…

and then Join

HTH, Jakob

I’m looking for a solution other than Patch, thank you for your help.

The not-patch answer is to rethink how you’ve made this. Running into a “5-sided hole” generally means I’ve made a mistake. No exact solution exists to what you’ve set up, no matter what you do it’ll be a “patch.”

Ideally NURBS objects should be made out of larger “rectangular” surfaces that you trim off intersect, not by making a wireframe and trying to “fill it in.”