Sweep one or more profile curves along two path curves (birail)

1. Select Surfaces > Birail > Birail n Tool based on how many profile curves you want to use (1, 2, or 3-or-more).
2. Click the curve(s) you want to use a profile curves, then click the two rail curves.

   Instructions appear on the help line at each step.

   
   
   

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