[Sam A]

I have a keel profile drawing that I have extruded from a curve.

Curve looks great, but when I generate the 3d tool path it does not follow the curve and draws large flats that are 'away from the part' on one direction and then gets closer when generating in the other direction.

I am going to try to attach cad drawing with part of the tool path generated.

Original part drawing is hidden in yellow, cleaned up with spline is in blue hidden, extruded part is visable in green and tool path is in blue.

How can I get the tool path to follow the contour of the part? The flat's in the part can be both seen easily.

Thanks in advance.

Sam