Hello experts !
am trying to unfold a brep for fabrication well half of the unfold works proper
i tried to use lunch box, pufferfish and open nest plugins for unroll all give me same result
how can i fix this trying to figure out the basic concept of unfold
I doesn’t work because you work way too far off the origin - to be exact 127444.777 document units away -, which produces tolerance issues (and is generally a bad idea in CAD).
What you can do in your case is, move your geometry - in a non-destructive way - to the origin, and unroll it there.
You didn’t show this result that is wrong - I opened your file in Grasshopper in the current Rhino 7 version in a “Small Objects - millimeters” template and that seems to have worked fine without any modifications to your Grasshopper definition.