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How to use attaching and overlaying xref

Attach or Overlay Xrefs in AutoCAD


Now in this video, we are going to learn about attaching and overlaying of xref command.

There are much use of an external reference (Xref). We will see that with the help of an example.

Suppose two designers are working on the same project. One is working on furniture while the other is working on the layout of the house. So both of them want the reference of their opposite partner's work, i.e. the designer who is working on furniture wants the reference of the house's layout to design furniture. In contrast, the other one wants the reference of furniture to develop the house's whole layout.

We will open the external reference menu by pressing the shortcut key 'X+R+Enter' key. It will open one external reference menu in front of our screen.

We have given DWG options on the top left corner of it, which used to attach any DWG file, image file, DWF file, DGN file, PDF file, point cloud file, and coordination model file.

In our case, we will select attach DWG file and then select our required file, which we want to attach. As soon as we select the file, one dialogue box will open in front of our screen named 'Attach External Reference'.

We will see preview, reference type, scale, insertion point, path type, rotation, and block unit options in the dialogue box.
In which we will select attachment as our reference type. Similarly, we will edit all other options as per our requirement. And after doing all this, we will click OK.

After that, we will see that the file we selected has been added to the External References Menu.

Now will see that the furniture drawing file attached to the layout file on our main screen.

Now we will change the reference type to overlay in place of attachment and save it. After that, we will go to the furniture file and use the Xref command. Now from here, we will attach the layout .dwg file, keeping all the settings as default. So this will provide the reference of the layout of the house concerning furniture.


If we select Attachment type, all xrefs we enter into our drawing will be carried over to the next drawing when we xref your drawing into another. If you select Overlay type instead, the xref that was placed into our drawing file will not be carried over to the next drawing.

Revit gives you two options when linking a Revit model: Attach or Overlay. The visibility of nested models (models linked to the link) in the primary model is defined here. Overlay just loads the linked model, while Attachment loads layered linked models and shows them in the project (and not the ones linked into it).

At the command prompt, press Ctrl+Shift+C or type COPYBASE. Choose a starting location. Press Enter after selecting the objects to copy. The objects can now be pasted into another drawing or into the same drawing.

By pressing Shift+Space or utilising the Selection dialogue box, you can pick amongst overlapping objects.

To bind an Xref to the current drawing, follow these steps:

  • Select the Insert tab. Panel of experts to consult Launcher for dialogue boxes. Find.
  • Select the reference name you want to bind in the External References panel.
  • Bind can be accessed by right-clicking and selecting Bind.
  • Select one of the following options in the Bind Xrefs dialogue box: ...
  • To close each dialogue box, click OK.

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