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Registered: ‎01-08-2013
Message 1 of 4 (995 Views)
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Extrude Cut from 3D Sketch (or something like it)

995 Views, 3 Replies
01-09-2013 09:54 AM

I know my subject is somewhat mis-named, because I gather that you cannot really extrude from a 3D sketch, however I am looking for a way to accomplish what extruding a cut from a 3D sketch would accomplish.

 

The problem is this: I have a simple 2D sketch that I've projected onto a curved surface (imagine a square projected onto the outside of a hollow cylinder). Now that I have a 3D sketch on the surface of the cylinder, I want to use that sketch as a "cookie cutter" through one wall of the cylinder.

 

If I were to simply extrude the cut from the 2D sketch, the "cookie" is wider at the edges than at the center. I want the cut to be perpendicular to the projected 3D sketch at all points. 

 

I've attached a simple example that illustrates my problem.

 

Can anyone help? Thank you in advance!

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Posts: 25,276
Registered: ‎04-20-2006
Message 2 of 4 (992 Views)

Re: Extrude Cut from 3D Sketch (or something like it)

01-09-2013 10:02 AM in reply to: tvernonbaker

Split and Thicken-Cut

Emboss might also be a solution.

Please mark this response as "Accept as Solution" if it answers your question.
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Posts: 13
Registered: ‎01-08-2013
Message 3 of 4 (986 Views)

Re: Extrude Cut from 3D Sketch (or something like it)

01-09-2013 10:10 AM in reply to: JDMather

Thanks!

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Posts: 1
Registered: ‎12-03-2013
Message 4 of 4 (393 Views)

Re: Extrude Cut from 3D Sketch (or something like it)

12-03-2013 12:57 PM in reply to: JDMather

I know this is old, but good god, you just saved me so much time.  We do a lot of odd shape and transition HVAC style ducting, this saves my life!

 

Thank you, thank you, thank you!

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