Vector from line

How to draw perpendicular lines from a line along a point?
Thank you) (3.9 KB)
Canvas at 13;42;28

and if the points on the line are already fixed and through the “Perp Frames” node is not an option?

Like this? (4.2 KB)

does not work(

post the gh file with internalized curve to take a look.
(You are connecting the tangents to the parameter input of curve frame, this won’t work well)

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V1.3dm (35.5 KB) (4.1 KB) (7.0 KB)

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thank you)

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No need to use Derivatives. Just use the Tangent output from Divide Curve as A vector for the cross product.