Forums >> Revit Building >> Technical Support >> Building Pad not cutting Toposurface

ac1234

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Joined: Tue, Apr 12, 2011
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I want to use building pads to show excavations for site utilities.  But, the pad seems to be attaching a solid, rather than cutting through the toposurface.  I have checked to make sure the pad is below the lowest elevation and I have checked the phases.  What am I doing wrong?  Attached image, “Vinson Hall 3”, shows the solid on the underside of the toposurface.

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WWHub

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Joined: Tue, May 16, 2006
13079 Posts

Sorry ... not a mind reader.... a little text ... Arrows...something to point at what you are talking about would help us.

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itsmyalterego

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Joined: Thu, May 28, 2009
829 Posts

how thick is your slab...?  And is your slab glass? ...or something similar?  I think I see what you're trying to do, lay down the excavation for the pipe.  First thing I would do is make the slab 1" thick instead of a monolith... I don't know why I feel this woudl help, but it might.  Is there a possibility that you have two topo surfaces layerd on top of one another by mistake? 

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Building Pad not cutting through terrain (or cutting ALL of it!) See Pic

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Toposurface & Pads

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building pad

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Toposurface Issues

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Building Pad Problem

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