How to create a curve, in a specific point, perpendicular to another curve

Rhino Rhino for Windows
1

Hi!

Im having a lot of trouble trying to allign frames to be perpendicular to a specific curve.

I have points on a curve and now i need to create curves (on those points) which are perpendicular to the previous curve i mentioned. Does anyone come up with a way?

Thanks!

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2

There are a variety of ways.
Try the “Line” command. You’ll see it has “BothSides” and “Perpendicular” command line options.

The two curves you show on the kinks of your rail curve, are not perpendicular to either segment. The “Bisector” command line option in the Line command may be useful for those non-perpendicular curves.

Also, the OrientOnCrv command can be handy.