Extrusion of a self intersecting/open profile

Maniak Cad

8 Oct, 2017 09:03 AM

Normally CATIA does not allow user to extrude an open or self intersecting profile. It is not possible to extrude such profile unless you define a thickness of the extrusion.
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https://catia-tnt.blogspot.com/2017/10/extrusion-of-self-intersectingopen.html
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1. Step 1:

   Follow these steps to extrude an open and/or self intersecting sketch.

   1. Create a sketch with an open and/or self intersecting profile - Fig.1.

   

   Fig.1

   2. Use this sketch to create a Pad, in the Feature Definition Error window click on Yes - Fig.2

   
   

   

   Fig.2

   3. In the Pad Definition, in Profile/Surface section check the option Thick - Fig.3. Click on More to expand the Pad Definition window.

   

   Fig.3

   4. Define thickness or thicknesses of the extrusion in the Thin Pad - Fig.4. And click on OK.

   

   Fig.4

   5. An extrusion of a self intersection and open profile has been created - Fig.5.

   

   Fig.5