Hi, all. I just realized there is a problem in Creo in handling 180 rotation while sweeping along a circular section. I was trying to create a Mobius with 180-deg twist but the sweep feature failed miserably. After many attempts, I managed to model out the geometry through a few different ways:
1. Toroidal bend.
The sweep is done through a straight line before bending it to 360-deg by Toroidal bend.
2. Split sweep.
Sweep is performed twice, along half circle each time.
3. Projected sweep
The single trajectory is extracted from a helical sweep created prior to it.
I am sure many of you have come across the similar problem before. I am attaching my proe file here with the hope that I can learn your workarounds too. Many thanks in advanced for your sharing.
