Masterbait In The Shower What To Do And Use

Subject: Exporting DWG - blocks and elements that disappear

A serious problem export to DWG (which, until now we did not know how to fill, at least in the form automated) consuming time editing AutoCAD DWG to get a version of a picture that is faithful to the original Revit is the loss of pieces of the drawing, at random, leaving blank areas, or blocks away (windows, furniture, a wall, etc.). Ie incomplete DWG drawings.






Problem:
The diagnosis is, for us, a mystery. He seems to be reacting with blocks, or bad Revit families converted into blocks in the DWG, that are not shown. For example, the family "Mesa.rfa" inserted into a Revit project becomes a restaurant on the block "table" when exported to DWG. It can happen, then in the plan view of our building the high reaches the DWG as an empty space where more tables are missing all that filled him. In this case it is a problem with the block. But there are other cases in which one sector away from a window (a piece is another and is not), or structural elements, etc., Etc., Etc. The result of the export to DWG is completely unpredictable in this regard.





Solutions:
know of two, a "mediocre" (but sometimes, saving, especially when later discovered the omission of an item and do not want to restart the export operation and editing in AutoCAD) and a significantly more effective than we have recently discoursed, that takes more steps but it might lead to some sort of automated routine. In any case, we regret to say that these are post-export procedures must be done in AutoCAD.

Solution 1:
is applicable when block is incomplete or missing. The solution is to search the list of the DWG blocks Revit family name disappeared and insert a new copy of the block. This issue itself is visible. Then, to bring up all other intancias have to open it in the block editor and close it again. Voila!

Solution 2:
say that this operation is more efficient because (as far as we experienced today) not only prevents and resolves the problem of missing blocks, but also the missing sectors. These sectors are missing, it seems that also blocks but inscrutable name ($ X $ X1, etc.) And therefore very difficult to identify in the listing.
appears that much of the problem arises when export from Revit without generate each view as an XRef, that is, when we make Revit DWG generate a single file and not a collection of files, one for each view and some Moreover, with its attendant problems of handling. However, seems, too, that Revit "prefers" that method, because if we export with Xrefs, the AutoCAD drawings come complete without pieces missing or invisible blocks. Therefore, the steps of this method are:

1. Export to DWG with Xrefs.
2. Open the DWG file base (which cites the XRefs) and all subfiles will be charged to reconstituting the complete perfection.
3. In AutoCAD go to Insert > References External ... , and link all external references in the drawing. Select Bind then Insert mode (do not use Bind > bind, because it generates very long layer names RVTaDWG the routine does not handle well.
4. Go to the model space and exploit all the "views" (the Xrefs inserted).
5. Return to paper space and run the routine RVTaDWG.lsp

hope this works for you too.

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