Sweep along path gets twisted?

[Anonymous]

Hi, i am trying to design a marble track. For this i need to do serveral sweeps with a half circle profile.

In order to keep the marble in the track, the sweep should not twist down the end. 

I attached an image of the problem.

Any help would be greatly appreciated!

[jeff_strater · Accepted solution]

hi @miguel_antheunisse, you should use Sweep with guide surface for this kind of operation.  It allows you to control how the sweep flows.  In this case, the guide surface would just be a work plane (the "floor plane").  Works pretty well:

Here's a screencast that illustrates:

[Anonymous]

Perfect! That did the trick! Thank you very much.