Extrude along 3D Polyline

[stewi]

While extruding an object along a 3d spiral, the object rotates around the spiral. In example, if I draw a spiral and try to extrude a trapezoid through it, than after a few turns on the spiral the trapezoid stays upside down.
Is there a way to keep the object parallel to the coordinate system?

 

[pardal]

Hi Stewi.
All extrude figure will twist on the 3d spiral.
IT is a ACAD limitation, as far I know





Pardal

 

[pardal]

See here

http://www.eng-tips.com/viewthread.cfm?qid=101312

Pardal

 

[stewi]

Thank you. I was hoping there was something similar then the tool SCREW, which is built out of segments for any shape extrusion.