Curve wrap on a surface

[stevethb]

Hi there

What would be the best way to wrap a curve ( spiral ) on a surface ?

I attach the prt file as well as a paint sketch.

I have been trying to use a wrap curve but it doesn`t work on a multiple face sheet. Also the surface size changes from bottom to up which might be a challenge.

Any ideas would be helpful.

It is done in NX9, but I also have NX10 if it helps

Thank you in advance

 

[stevethb]

I don`t know how to add two attachments to one post so I put it here

 

[Toost]

A couple of variants i think of : - depending on the shape you want.
1) draw a line in the center of that surface shape.
draw a helix around the line and outside the surfaces.
Use Project curve, towards a line, and ... See example.
( See manual for full description of method.)

2) draw a line in the center , draw a line perpendicular to the line.
Use Sweep - orientation Method = angular law, linear 0 to n_revolutions*360
then use intersection curve between the surfaces.
( not done in the uploaded part.)
- The sweep is there, the result from 1) and 2) seems to be the same.

( Do you want that bump in the side of the shape or is that un-intentional?)

Regards,
Tomas

 

[Toost]

Da... -Missed the final click on the attachment, Again...