What's type operation in NX ? [ Edited ]

[#1]

Dear all,

what type of operation  in NX cam can do this toolpath?

attached file is part and nc programe

4F655.7z ‏224 KB

[#2]

*Fixed contour,

*drive method streamline,

   -2 flows, top and bottom curves, you can add cross vertical curves

   -helical pattern

*projection vector

     -away from line, line in the center of this area

[#3]

I would also look at tube milling.

[#4]

thanks for your help!
I think this toolpath like zlevel profile,,, I try out all operation in nx, but toolpath very bad

[#5]

If you can't get a path you like with Zlevel Profile, please contact GTAC, MBG, or your partner representative. 

[#6]

Zlevel does levels, constant levels,like cavity profile

Notice that in the video the bottom paths are offseted from something and even copy it.