Constrain a new component with the origin of a selected component with Place at Component Origin

1. On the ribbon, click Assemble tab Productivity panel Place at Component Origin .
2. Click to select an existing component within your assembly.
3. In the Open dialog box, select the component to place.
4. Click Open to place the component and close the dialog box.

The component you select is placed and constrained in the assembly with its origin aligned to and coincident with the origin of the component you initially selected within the assembly.