Choose Surfacing tab→Surfaces group→Project Curve 
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On the Project Curve command bar, click the Project Curve Options button.
On the Project Curve Options Dialog Box, click the Along Vector option.
Click the curve or point you want to project onto a surface and then click the Accept (check mark) button.
Click the surface onto which you want to project the curve and then click the Accept (check mark) button.
Click to specify the direction you want project the curve.
Finish the feature.
Tip:
When you are projecting a planar curve along a vector, the Projection Plane Step is skipped, and the plane the curve is on is used to define the normal direction in which to project the curve. If you want to project along a different normal, you can click the Projection Plane Step button and define the plane you want.
You can also use the Project Curve command to project a point onto a surface.
You can use the command bar to specify that you want to project a single element, a chain of elements, a point, or an entire sketch.