Assembly Overview
Overview: The Assembly Design workbench allows you to create a model containing multiple parts. You can create and maintain libraries of components that may be common to many parts, develop part designs within the context of the assembly, create assembly drawings and parts lists, and monitor changes that occur within the assembly.
Advantages of Using Assembly Design
We recommend creating assembly files for a number of reasons. By using assemblies, your overall file size is smaller because the assembly file creates a link to the various parts used in the assembly, rather than making multiple copies of each part. When a part is used multiple times in an assembly (such as bolts or pins), the part file is referenced once, and multiple occurrences of that part display in the assembly.
Another advantage to assemblies is that individual part files are master files. CATIA can automatically update the assembly and drafting files when you change the master files, therefore, saving you time by not having to make the same change multiple times. Using methods such as formula design can extend that capability by linking common parameters between part files.
In this way, you can make an edit to a pin diameter, and have the corresponding hole diameters in other parts change simultaneously. CATIA allows multiple part files to be open at the same time, so you can see changes to all the parts immediately.
Assembly design also allows you to create relationships between the different parts using constraints. Constraints allow you to establish smart relationships between adjacent parts. For example, if a part is changed in a way that makes a hole position move, the bolt constrained to that hole also moves.
Product Management
You create an assembly in a separate assembly file by adding references to master parts. These references are referred to as components. You can modify the assembly by editing the master part files, by adding or removing components, or by replacing components with alternate versions of the master part. There are several methods available to control the loading and display of components within an assembly.
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