Pull failure - V6 and WIP

In the attached, using Pull to pull the curve to the surface (DeleteInput=No) fails silently with nothing done.

If you Shrink the underlying surface (ToEdge), then it succeeds. Probably Rhino is getting confused by the underlying spiral surface definition…

PullFail.3dm (76.0 KB)

Hi Mitch - got that, thanks. … it also works if the surface is untrimmed.