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Sweep a 3D poyline/spline?

Printed From: CAD Forum
Category: EN
Forum Name: AutoCAD
Forum Description: Discussion about AutoCAD and AutoCAD LT, viewers, DWG and DWF formats, Design Review, AutoCAD 360, add-ons
URL: https://www.cadforum.cz/forum_en/forum_posts.asp?TID=5137
Printed Date: 18.Apr.2026 at 07:36


Topic: Sweep a 3D poyline/spline?
Posted By: tulip3D
Subject: Sweep a 3D poyline/spline?
Date Posted: 17.Jan.2011 at 17:11
Hello,

Wondering if this is possible in acad....to sweep a spline that is NOT 2D, but twisted in multiple axis...meaning I pulled a few of the grips in opposite directions to make it truly 3D...its just a representation of coaxial cable...wanted to make it extra pretty, lol. But ran into the 'Unable to sweep 1 selected objects' error and now acad is stuck on stupid. or maybe me?
suggestions anyone? other than "its just a cable who cares"


Replies:
Posted By: HAWDesigner
Date Posted: 17.Jan.2011 at 20:59
It doesn't look like that can be done.

Objects that Can Be Swept: Line, Arc, Elliptical arc, 2D polyline, 2D spline, Circle, Ellipse,
Planar 3D face, 2D solid, Trace, Region, Planar surface, Planar faces of solid.

Objects that Can Be Used as a Sweep Path: Line, Arc, Elliptical arc, 2D polyline, 2D spline,
Circle, Ellipse, 3D spline, 3D polyline, Helix, Edges of solids or surface.



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R. Williams
AutoCAD 2010 Certified Professional
<!-- If all else fails hit F1 -->
<<AutoCAD 2009

Posted By: tulip3D
Date Posted: 18.Jan.2011 at 02:18
Wait Haw,
I think I may have miss-posted,  read correction:

I was having trouble sweeping a circle from one plane to another VIA a 3D spline....to make a realistic looking cable.
But as you posted, it should have worked...and it still didnt. I was finally able to 'splinedit' and change it into a 3D polyline I believe....it turned the spline into hundreds of tiny line segments. It literally slowed down the file open time, that single cable in a 3D solid.
I dont like it, and really wanted to know why it didnt work after I simply pulled some grips around.
Whats your take?
Sorry for the confusion!


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