Revit Construction Modeling Tools
Illustration by Richard Downs

Adding and merging parts


Revit Construction Modeling Tools

with Paul F. Aubin

Video: Adding and merging parts

After I've divided up my parts, there's other tools that I And notice that here I can select this next layer

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Watch the Online Video Course Revit Construction Modeling Tools
2h 9m Intermediate Mar 11, 2014

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If your job requires working on Revit models created by someone else, then you have probably run into situations where portions of the model need to be reworked. Perhaps you're a subcontractor or an interior designer who needs to accurately convey finishes. Traditionally tasks like these would require a good deal of time, but with the three unique construction modeling tools in Revit, you can now add the details and refinements you need without rebuilding the entire model. Paul F. Aubin shows how model elements can be broken down into parts and articulated with their own finishes, materials, and other details. To assist in documentation, Paul explores assemblies: detailed drawings of isolated portions of the model. And with the Displace feature he shows how to create compelling "exploded view" illustrations to convey how things fit together.

Topics include:
  • Creating and removing parts
  • Dividing parts
  • Adding and merging parts
  • Creating parts from linked files
  • Creating assemblies, assembly views, and assembly sheets
  • Creating and editing displacements sets
  • Controlling displacement views
3D + Animation CAD
Revit Architecture Revit Structure Revit MEP
Paul F. Aubin

Adding and merging parts

After I've divided up my parts, there's other tools that I have to further customize the way that those parts are modeled. So I'm going to look at two features in this movie. One is the Add Parts feature, which allows me to take a layered object and add the division to other layers within the object. The other is the Merge Parts feature where I can take two adjacent parts or two parts that overlap one another and merge them together into a single part. So I'm in a file called Add Merge, and I have two windows open. I have the level one floor plan on the left.

And I have a 3D view on the right. Now, here in the 3D view, you can see that the parts visibility is set to Show Parts, and if I click over here in the floor plan view, you can see that the part visibility is set to Show Original. So I'm going to start over here in the floor plan view, and I'm going to select the two original walls. Now, you can see, if I highlight over one of those, that it's currently at basic wall, generic, eight inch. Up here on the Properties palette, I'm going to open up the type selector, scroll to the top, and I'm going to choose a different wall type.

So I'm going to choose the Exterior E face on metal stud. Now, you're going to see the wall get thicker in the plan view. And in the 3D view, you're going to see the divisions of the parts seem to disappear. Now, to investigate what's going on, let's take the floor plan view, which is currently set to Coarse. And let's change that to Medium Detail. So that will display more detail. And as you can see. The E face is actual on the inside face of the building.

Now, it turns out that the divisions that I previously created for the walls were actually dividing that side of the wall, so I'm going to select both walls again. Tap my space bar and that will actually flip the walls around and then you can see that my divisions are still here and intact. They just were dividing the E face materials only. Let's say that I wanted that division to apply to more than just the outermost layer. So, I'm going to click over here into the 3D view, and all I have to do is select one of my parts on the ribbon, click Edit Division, and then that will display the existing division in the green line and then I can click the Add button right here.

And this will allow me to add additional layers for the wall to this division. Now I'm going to zoom in a little bit so you can see this happening. And notice that here I can select this next layer back, and the division will project back and include that layer. And I could select more than one if I want to. And then when I'm done, I simply click Finish. And now all of the layers, parallel to this original one that I've selected, you can see that they each have their own collection of parts now.

Another way to say that, is the same division is now applying to each of those layers. And of course, I could reverse the process in the same way by clicking the Remove button here and removing one of the layers, and then when I click Finish, now I've removed the middle layer, actually. So you could see the division applies to the third layer in and the outside layer, but the layer here in the middle is still one continuous layer. So the layers do not have to actually even be in contact with one another in order to be added to the same division.

So that's one way that you can quickly apply the same division to multiple layers within the same object. Now staying here in the 3D, I'm going to select one of my parts in the adjacent wall, hold down my Ctrl key, select another part that's touching it, or overlapping it, and that will enable the Merge Parts button. That's all I have to do, click the Merge Parts button, and these two will merge together into a single part.

And if I hold down my Shift key and rotate, by dragging my wheel, you can kind of get a better look at that, and you could see that that's now one part. So let me repeat it again here, Ctrl key, Merge, and then here, Ctrl key, and Merge, and I now have a single part that wraps around the corner for each of those three conditions. So, using the Add feature, you can add additional layers within a layered structure to the same division and therefore, make it easier for you to subdivide all of the layers within a layer assembly and with the Merge feature you can take two adjacent parts or two overlapping parts and merge them together into a single part.

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