Align plane to 2 curves


I am working on a project where i got planes perpendicular to a line, extracted from a surface, but I need a second align of the plane. I can’t get it to work and tried a lot but without succes. Anybody know the magic component for this?

All the best Stijn (23.2 KB)
ribbel stoel.3dm (2.5 MB)
Uploading: Screenshot 2021-12-17 at 12.39.07.png…

Dag Stijn -

It doesn’t look like that image came across and I can’t tell what you are asking for without it.

FWIW, here’s a version of your definition that doesn’t require that 3rd party plug-in to be installed and has the Rhino geometry internalized so that people don’t need a 3dm file… (55.6 KB)

Ah, weird, ok I hope the image is ok now and explains what I am looking for;