How to make an Helix over a 3D spline

Can somebody help me to solve my problem. I need to make a tube surrounded
by a helix. The tube has a circular section. The sweep path is a 3D sketch
or a spline.

Thanks in advance,

Hans

 

our SolidSketch add-in can wrap any sketch around any surface (see
www.solidplus.com/solidsketch )
see http://www.solidplus.com/solidsketch/gallery/spiral.htm for a sample and
tutorial similar to what you want to do (but we sweep an ellipse...)
If you meet any problem, e-mail me your model and I'll test it with the
newer version of SolidSketch that we're about to release.

 

draw a circle for the helix diameter and then use the helix tool as
appropriate to make your path, make a normal plane on one end and draw your
profile with pierce relation, sweep. make your tube as required by usual
means

 

I agree with Neil, but add that you can also make your tube then insert a
cut using the Curve / helix and then cut the profile into the tube on the
helix.

Tony