To Create a Subassembly and Set Default Datums
You can create a subassembly and assemble it automatically to references in the assembly. The system creates constraints to locate the default datum planes of the new subassembly relative to the selected assembly references.
1. In an open assembly, click
. The
Create Component dialog box opens.
2. Click Subassembly, and then Standard.
3. Accept the default file name or enter a new file name, and click OK. The Creation Options dialog box opens.
4. Click Locate default datums. The Locate Datums Method area of the dialog box opens.
5. Select references from the assembly using one of the Locate Datums Method options:
◦ Three planes
◦ Axis normal to plane
◦ Align csys to csys
Click the Related Link for detailed information.
The system creates a new subassembly with default datums and places you in feature creation mode.
6. Define features for the new subassembly that will automatically use the default datum planes for their references.
◦ If you used either the Three planes or the Axis normal to plane option, the sketching plane is the first plane that you selected.
◦ If you used the Align csys to csys option, you must select the sketching plane.
Once you create a feature or quit its creation, the system places the new component in the assembly in the way in which its default planes are coincident (by the Coincident constraint) to the selected references in the assembly. In the case of Axis normal to plane, the system also aligns the component axis with the selected assembly axis.