You can project curves onto the faces of solid bodies, surfaces, or planes in the Siemens NX Modeling. You can project curves along a vector or along a face
You can draw freehand curves on the nonplanar surfaces in Siemens NX modeling. The model face works as a sketch zone and the curves that you draw stick on the
You can create curves that lie on a surface in Siemens NX Modeling. These curves can be spline or straight. You can use the curve on the surface to divide faces
In NX modeling, You can create a helical spline curve through a vector/straight line or a splined curve. The created helical splines might have a constant or