Perp Frame question

Hi! I want to create series of planes that are perpendicular to curve on specific points(that the interpolate curve is based on). I googled ‘how to get perpendicular plane’ and most of answer advised to use ‘Perp Frame’, however, my perpendicular plane does not align to my desired points. They are just condensed on the end of the curve.

Can you help me how to create perpendicular planes based on the green points in this image?


thanks!!
PerpendicularPlane.gh (6.7 KB)

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Amazing! Thanks!