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Working With Civil AutoCAD Files?

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    Working With Civil AutoCAD Files?

    We are an architectural firm using Revit for a few years. One thing we have struggled with is how to work with civil 3d AutoCAD files within our Revit model. When we get a file from civil there is so much stuff in it that we don't need, i.e., points, utilities, text, hatch patterns, etc. The civil files always seem to have line work that will stretch several thousand feet vertically.

    We want to be able to use the contours and all surface information, streets, sidewalks, curb and gutter, etc. I find myself having to spend hours cleaning up the civil file to be able to use it and then 3 weeks later we get another, updated civil file and I have to go thru the process again.

    It seems to be a mess. What are other doing in regards to working with civil files and incorporating them into Revit projects?

    #2
    Nobody here works with civil engineers?

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      #3
      This is a large pain point for us too. Most of our issues revolve around the proxy objects that Civil 3D creates. If Civil engineers and/or Surveyors would simply export their drawings to AutoCAD (or explode AEC Objects using eTransmit) before sending them, most of these problems would go away. Ask them to do this before sending you the files. If they are using eTransmit (they should be), it takes 30 seconds to set up and then it always works from then on. I have had bad experiences with the Autodesk Object enablers and hate to use them just on principle. This is the perfect example of why a BIM execution plan is a good idea.

      I think you will always expect to do some cleanup with layers, but having unexplodable AEC objects 250 miles from your project site can cause problems in Revit.
      Consequently, we have developed some workflows that involve varying degrees of escalation, but we usually end up write-blocking what we want out of the civil file being careful not to include any proxy-objects.

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        #4
        One solid method to loose all proxy object definitions is to use the 'Exporttoautocad' command. Works faster and better to give you clean dwg files. Ask that as inputfile for Revit. As civil engineer using both.
        Last edited by HansLammerts; August 3, 2017, 05:07 PM.

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