# Spline from 2D coordinates

**URL:** <https://discourse.shapr3d.com/t/spline-from-2d-coordinates/8743>\
**Category:** Modeling Questions\
**Created:** [August 24, 2020, 1:51pm UTC](https://discourse.shapr3d.com/t/spline-from-2d-coordinates/8743 "2020-08-24T13:51:22Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Larsinka](https://avatars.discourse-cdn.com/v4/letter/l/e68b1a/32.png) [@Larsinka](https://discourse.shapr3d.com/u/Larsinka)\
**Post date:** [August 24, 2020, 1:51pm UTC](https://discourse.shapr3d.com/t/spline-from-2d-coordinates/8743/1 "2020-08-24T13:51:22Z")

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Hi,

I want to create a spline from a set of coordinates from an airfoil plotter.

I know I can use other CAD software to create a dxf and import it to Shapr3D.

It would be nicer to do it in Shapr3D because if I import the dxf I get a set of polylines that don’t create a nice surface on extrusion.

Is there an other way to do that?

Kind regards,  
Lars

Image is an extruded dxf Sketch from AutoCAD.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/3/319d88957426a89afa5287b5a7c6eb361dd91f12.jpeg)