Creo Expert Moldbase Extension > Components > To Define Components
  
To Define Components
1. Click EMX Components and then in the Components group, select a component. A definition dialog box for the selected component opens.
2. Set the unit of measurement to mm or inch. By default, the unit of measurement is the same as that of the project assembly. You can, however, use multiple measurement types in an assembly such as using metric plates in an inch assembly.
3. Select a supplier from the list.
4. Select the assembly in which to assemble the equipment component. You cannot change this selection while redefining a component.
5. Select the subtype of the component from the list. A simplified image of the selected component type is displayed in the preview window. The dimensions appear in the table.
6. Right-click a row in the table to open a shortcut menu from which you can measure diameter, length, or offset.
7. Double-click the Value column to enter a new value or to select a value from the list .
* 
You cannot change values marked .
8. Enter a component name in the Part Name box. To enter an alternate name, select the check box and type the name.
* 
Change the default part name format or reset the part name, in the Part Names tab in the Options dialog box.
9. Select references such as Axis|Point, Thread Surface, Surface, and so on and select the assembly placement constraints in the graphics window. A constraint name that does not appear in boldface indicates that this constraint was set automatically and does not need further definition.
10. Set Component options, component BOM data, parameters and relations, and UDF dimensions.
11. Select the Standard Part check box to prevent editing.
12. Select the Add to BOM check box to include the component in the Bill of Materials.
13. Click to save current settings as the default for the type of component.
14. Select a placement plane, and then click  to create assembly reference datum points on the fly. The model reorients normal to the placement plane. A circle appears with the main diameter of the component. Click to place the point, and then right-click to exit the tool.
15. Click to preview the component.
The mold base is in wire frame mode.
The new component is in shaded mode.
Changes after editing a component dimension.
16. Click or to collapse or expand the options tab when the dialog is too big such as for screens with lower resolution.
17. Click OK to create the new component and cuts or click Cancel to close the dialog box without making changes.