Forums >> Revit Systems >> Technical Support >> Creating an attenuator family - air flow problem

DaveCBG

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Joined: Thu, Jan 6, 2011
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I have made a basic attenuator family in Revit MEP 2012 as I couldn't find any metric ones to download, but I am having a problem in that the air flow in the duct does not carry o nthrough the attenuator. I have it set up as a duct fitting family type, and the duct connectors are set to 'Calculated' under 'Flow Configuration'. I have also linked the connectors and tried all sorts of things like playing with parameters, setting them as instance and type, using shared parameters, and using none at all, but it still will not work correctly.

I have attached the family, so if anyone has any ideas and wants to have a go at making it work then by all means try it out.

Thanks.

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dgcad

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Joined: Thu, Mar 17, 2005
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Did you look at these ? > http://seek.autodesk.com/category/Sound+Attenuators

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DaveCBG

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I did, but they are all in imperial sizes, which is why I wanted to make my own.

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teafoe5

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I believe you can go under the Manage Tab, Project Units, and change the units to read how you want.

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DaveCBG

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I managed to get mine working, I changed the connectors to 'Global' types, same as a Ruskin one I downloaded to see how they'd doneit, and also realised that I had placed the whole unit on the level 0 reference plane, instead of having the level going through the middle of it.

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