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Forums >> Revit Building >> Technical Support >> Opening cut and Void cut not allowed
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Joined: Thu, Jul 1, 2010
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don't suppose anyone knows why you can't have an opening cut and a void cut in the same family do they???
I know you can delete the opening and make a void, then have as many as you want, but a void never seems to work as good as an opening on mis-shaped walls.
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Joined: Tue, May 16, 2006
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That is correct - you can't have both in doors/windows. So..... delete the opening cut and create your own opening using a void.
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yeah that's what i do, but say for example on a curved wall, the opening cut will create an opening perpendicular to the wall where as a void cut will only work as you create it, in most cases, stay as a rectangular cut perpendicular to the window rather than the wall. if that makes sense.
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Sorry but you are wrong, the opening cut works just like your void would. See attached simple wall with standard door.
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Joined: Fri, Sep 22, 2006
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If you want the hole in the wall to taper, like a window opening might in a stone wall that you have been working on use a void blend wider on the outside narrower on the inside.
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See attached Hub
This is what I meant, wall opening creating a perpendicular cut to the curve. This was a standard wall opening, i suppose i could create a sweep with a bit of good maths that followed the radius of the curve not sure how i'd go abot it but i'm sure i'll figure it out 
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You are right. A wall opening does cutthe wall perpindicular to the faces. But you were initially talking about an opening cut in a family, which is something completely different than a wall opening. You can not place an "opening" in a family. That is a project system tool.
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it is not letting me delete the cut... im in revit 2013. Ideas?
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What is a 'cut' exactly ? There are 'openings' and there are 'voids'. There is no 'cut' object that I know of.
There are Wall Hosted families and there are surface hosted familes. Both opeinings and voids remove material and it depends on if you are in the family editor or in a project. Let's please clarify all of that before any advise can be effectively provided.
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"
What is a 'cut' exactly ? There are 'openings' and there are 'voids'. There is no 'cut' object that I know of.
There are Wall Hosted families and there are surface hosted familes. Both opeinings and voids remove material and it depends on if you are in the family editor or in a project. Let's please clarify all of that before any advise can be effectively provided.
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sorry, I did not explain. I have a "generic model" where I cannot delete the cut opening. Simple solution was to create a new generic model and copy paste my stuff into the new one with no cut opening. Now I can use my voids into the wall instead.
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andy, an explanation.
A void (has a specified x,y & z) - a model element used to form a void in specified model element(s) that they intersect. May be in a family or in the model. A hosted family may contain a void that will cut the host.
An opening(has - no depth) -a project system and hosted family tool to cut openings in hosted walls, roofs, slabs and faces. An opening cut is an opening in a hosted family -a special default family element available in wall based window and door elements. A family with an opening cut can not also have a void.
A family based opening or void should always be avilable for deletion. Yours may be in a nested family.
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