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Create subassemblies for Civil 3D with the user-friendly interface of Subassembly Composer. The Autodesk Subassembly Composer has been. When it comes to corridor modeling, Civil 3D provides a large number of subassembly parts right out of the box. Since these parts are also. One of the most common Sub-Components I get asked about is the Subassembly Composer for Civil 3D and so I am writing this helpful guide.

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The xomposer of this point will be measured in terms of deltas in the X and Y direction with respect to the origin point. Now that you know how to use Subassembly Composer, go ahead and create your own subassemblies, draw them in your mind, then on paper, and then build the subassembly.

Properties is where you set the properties for each of the elements you bring in from the toolbox; properties include geometry, calculations, and subasssmbly behavior. Subassembly Composer also requires communicating with the program using its own language, almost like coding; in this case it uses.

In Subassembly Composer you can also create subassemblies that work with targets. Add a link component to the flowchart; no need for points here because the link will connect to existing points. Add another point element, which will be the bottom right corner of the subassembly.

Customizing with Subassembly Composer

To understand what Subassembly Composer does, we need to review how subassemblies work, what their components are, and what they do; specifically, we need to understand codes, points, links, and shapes. AutoCAD has some verticals composrr specialized tools to design and draft elements pertaining to different industries.

Figure 1 shows the basic anatomy of a subassembly with codes, points, links, and shape. For subsasembly point there is no need to modify anything else. You can solve this in Civil 3D if you create a closed polyline, turn it into a subassembly, then assign codes, links, and shape and it probably would be fine.


Civio Now you have two parametric subassemblies made from scratch. Subassembly parts Figure 1 shows the basic anatomy of a subassembly with codes, points, links, and shape. It will be directly below the origin at a distance of negative Depth, which is a parameter previously defined, and no displacement in the X direction.

You can now save the file and close Subassembly Composer. This point will use a point code so a feature line can be created when connecting multiple sections using this subassembly. Think about the subassemblies you use when building corridors.

Notice that here you have to use both input and output parameters. For this link there is no need to modify anything else. PI; this will convert the Atan into degrees. From the toolbox in the Miscellaneous category, drag Set Output Parameter and drop it into the flowchart. Flowchart is where you lay out the workflow: Add another Output Parameter.

And because we have two different options, we will use a conditional operator. Atan Slope ; this will give you the slope in radians. He has worked in construction management and design since and has implemented and trained companies on Civil 3D for the past year. As an AutoCAD user, you are accustomed to drawing lines in a very visual way.

Use Subassembly Composer – Create a Civil 3D Subassembly – EnvisionCAD

For Delta X type BottomWidth—in this case it is going to go to the right from P2 so the value would be positive. Import into Civil 3D Now you can use the slanted curb subassembly like a regular curb subassembly.

Now the subassembly is ready and it should look like Figure 8. Add another Output parameter from the toolbox. Subassembly Composer and its Applications Subassemblies are the building blocks for assemblies in Civil 3D, and we can look at assemblies as cross sections for roads, subzssembly, embankments, etc.

All of this information can help you to reverse engineer these subassemblies, have a better grasp of how they work, and create parametric subassemblies in Subassembly Composer. Hover over one of the tabs in the tool palette, right-click and select New Palette. Click Create Parameter to create a new parameter. Sjbassembly process is similar in that you have to create parameters and use those parameters to define targets.


By doing this we are converting the grade value into a slope value. Add this subassembly to the Custom Subassemblies palette the same way you did with the other subassembly. Set a default value for this parameter of 0. Toolbox is where you find all the elements that make up the subassembly such as its geometry, operators that determine geometry, tools to organize 3dd elements, etc. Some of them use targets to override slopes, widths, etc. At this point the subassembly is ready and it should look like Figure 3.

Hand-drawn schematics Figure 6: Set Output Parameter to Slope, which is one of the output parameters that was created in the packet settings. Add a point below this new auxiliary point. Set its properties the same way you did for the previous point.

Customizing with Subassembly Composer | AUGI – Autodesk User Group International

Drag and drop another point component. At this point the subassembly is closed, but subassebly is empty. This makes the way Subassembly Composer works seem a little weird, so when you design a subassembly it is always a good idea to start by drafting an outline by hand. When we customize a program we enhance our productivity because we adapt it to our specific needs.

The codes used when creating a subassembly will work with the codes in the Code Set Styles, subassebmly codes will create feature lines, and links can be used for surface creation Figure tutoeial Subassemblies are the building blocks for assemblies in Civil 3D, and we can look at assemblies as cross sections for roads, rivers, embankments, etc. The display name can have spaces and that is how it is going to display in Civil 3D.