Forums >> Revit Building >> Technical Support >> Void Extrusion in window family problem

MrSchumi

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Joined: Tue, May 18, 2010
8 Posts

Hi! I'm using Revit 2013 and I am trying to add a pc concrete sill to a window family.

I am creating the sill as an extrusion which extends 100mm into the wall, but it does not cut a void into the wall so I am adding a void extrusion. Only problem is the void extrusion cuts a void in my sill as well as the wall, even though I select the wall only for the void extrusion to cut.

Can anyone explain what I should do?

Thanks in advance.

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WWHub

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Joined: Tue, May 16, 2006
13079 Posts

Easiest fix is to create your void somewhere on the wall not close to your other elements and finish it.  Then relocate it to where you want it.

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develocon

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Joined: Wed, Nov 19, 2008
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you need to use the Uncut Geometry tool underthe modify tab, and then select the void and the PC sill.

once you have made the void uncut, it may also stop cutting the wall, if so just use the Cut geometry tool and select the void then the wall, this way the void will not interact with the PC sill

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mar000000

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Joined: Fri, Jan 23, 2015
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I know this is an old post however I have just come across it. I find the easiest way around this problem is to create a solid first and then convert the solid to a void. This can be done by selecting the solid geometry, with the solid geometry selected you should have the opportunity to change from solid to void in the properties. You are now able to use cut geometry.

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