winded rope

[uwam2ie]

Today I've looked looked how to model a rolled up rope.
The helix has no option to use a path / along spline.
Can anybody give me an idea how to solve this?
thx in ad

 

[cowski]

It should be possible with law curves. Probably won't be easy, but should be possible. If you have more details to share some forum members will probably be able to help.

Attached is a sample file I got from CADpo a while back. I can't find the section on their site any longer. I think they have taken the old 'tips' section down and are headed a slightly different direction.

 

[kevklem]

Try using opposite handed concentric helixes. Example: Make first a RH helix w/ 12" radius, 1" pitch and say 5 turns. Next, make a LH helix w/ 11" radius and 1" pitch and 5 turns. Then Transform/Rotate the LH(inner) by 90 deg. Then use Bridge Curve to transition between the two helixes at. Then create decreasing rad helixes: RH, then LH and so on with transitions. Next, create a circle or shape on the end of the outer helix and use "Sweep Along Guide" to create the body.

 

[uwam2ie]

It works ...
Cool.... thanks a lot to NX Team
If attached a picture

 

[uwam2ie]

the picture

 

[hudson888]

The was simpler than I suspect we all thought.

What you have the are handed helices that have straight line axes. I think that Cowski and I both thought that you meant something like braided coiled rope. That is a fair bit more difficult and requires a law curve because the case of a helix where the axis is not a straight line isn't supported as standard. as Cowski hinted you would have to use a law curve.

Instead of sweeping a circular profile you would probably find it much easier to use the tube feature.

Regards

Hudson