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Forums >> Revit Building >> Technical Support >> nested void family
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Joined: Thu, May 24, 2007
3 Posts No Rating |
Hi I'm trying to load and array a nested void into another family to create slots in rhs steel posts and regular spacings. The void family is a generic model and simply a void extrusion size is parameter driven. The post family is a sweep and when I load the void family it seems to give me no option to cut the post with the void. I can of course create voids in the post family and array them but you get the old message about "too many instances, try nesting a family" which is what I'm trying to do but with not much luck. Any help would be much appreciated. Cheers. Blair
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Joined: Tue, May 16, 2006
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What you are doing seems rather complicated. I would think a post is a simple form ... extrusion or whatever - and the voids are created as part of that from and set to cut it. One void - not multiple voids. (Remember - you can have multiple shapes in one extrusion (-be it a void or soild) just as long as the closed loops do not cross each other.... O O O could be three voids in one void description.
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Joined: Thu, May 24, 2007
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Thanks for that but I'm trying to control the slot size and array length by parameters. That way this same slot can be used in multiple families I need. Oh well maybe it's not possible. Cheers.
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Try making the void family using a face based template. Make your void, then make it cut the generic block that represents the host. Then when you load it into your post family, it will ask for a face as a host. It should then cut out whatever it is hosted on.
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I have a different but related issue where I have made a void extrusion on a face-based template, and it loads up fine into my family and cuts the host correctly, but I have an object directly underneath the void's host that I would like to also get cut by the void. Is that possible? The void shows as extending through the 2 objects, but it doesn't cut the lower one. I tried using Cut Geometry tool, but it won't recognize the void for me to pick it (presumably because it's inside a nested array?). Any ideas?
Jason
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