Forums >> Revit Systems >> Technical Support >> Void extrusion family visibility

itavarescorreia

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Joined: Tue, Nov 27, 2012
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I have a family of windows into which I want to load a family with a void extrusion with a visibility parameter so that I can determine whether it cuts into the host wall or not. The idea is to have a cavity beneath the window for a radiator in some types.

For this purpose, following some suggestions from here, I created a void extrusion family that starts outside of the host and then cuts into it depending on the yes/paramenter - with a formula which controls the depth. However, while this works perfectly inside the family of the void extrusion itself, as soon as I load it into the window family and attempt to turn it off, it says that the instance is not cutting anything and asks to delete it. How can I solve this? 

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dingohot

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Joined: Mon, Mar 15, 2010
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just make another small cut which always cuts host.

http://youtu.be/R88BMsX3A5w

hope it helps.

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hanbyjm

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Joined: Wed, Oct 3, 2018
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I downloaded this sink from Corian.  The void extrustion is cutting into my vanity front panel and is showing in elevation and the void is showing in section.  How can I make the void not cut the vanity and also not show in section?

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WWHub

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Joined: Tue, May 16, 2006
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Does this help? https://atgusa.com/revit-2021-new-feature-void-visibility-control/

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hanbyjm

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Joined: Wed, Oct 3, 2018
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I read that before I posted and it didn't help.  Thanks anyway.  I ended up using masking and filled regions to fudge the sections and elevations for now until I can fix it properly.

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marmiketin1

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Joined: Wed, Aug 19, 2015
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If it is just a simple rectangular void extrusion there is no need to make it a separate family. If you make it in the window family itself using reference planes to control its lenght and height and then assign a yes/no parameter to the 'cuts geometry' attribute it will work.

Then as long as you have the void always be intersecting the wall/host you will not get the error msg.

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