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solidworks complex extrusion

solidworks complex extrusion

solidworks complex extrusion

(OP)
I have a bit of an issue which I can't seem to figure out. As you can see from the picture I have a tube with a saddle cut on the end of it. What I need to do is take the inside edge (highlighted) and project it outwards from center to the outside diameter so that I can create a clean cut that is normal to the tube surface all the way around and will take off the sharp tips. The problem I am having is trying to get a normal cut that follows the inside edge since it is a 3 dimensional curved line.

Does anyone know of a way to do this? I hope I am explaining it well enough if not I will try to clarify.

Thanks

RE: solidworks complex extrusion

Here's another method.

I used "Ruled Surface" as my primary feature, it takes an edge you pick and gives you various options, including normal to surface - you may need to play with the alternate face button to get it going in the right direction.

http://img.photobucket.com/albums/v252/Kev_Boy/SolidWorks/Ruled_Surface.jpg

I then used "Offset Surface" because the mathematical ruled surface has an area around the middle where itself and the solid lie on each-other, generating an invalid zero-thickness situation. Just a small value is sufficient, I used .010

http://img.photobucket.com/albums/v252/Kev_Boy/SolidWorks/Offset_Surface.jpg

CSWP-Surf

RE: solidworks complex extrusion

(OP)
These methods are all really helpful. Thanks everyone for there input.

RE: solidworks complex extrusion

All, Thanks for sharing so many methods.
Kevin, I have a question. Is there a reason for offsetting the surface. (Surface-Offset3 in your model)?
 

RE: solidworks complex extrusion

Kevin & Blueturtle,

If you use Replace Face instead of Cut With Surface, you will not need to offset the surface to get around the zero-thickness problem.

RE: solidworks complex extrusion

Cor,

Yep. That's absolutely right, I had to use a small offset to get around zero-thickness geometry which is when two faces only make contact with one-another at one point, or line. So there is no thickness there to create the solid body.

CSWP-Surf

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