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A subassembly represented in the assembly by its constituent parts |
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By default, a subassembly inserted in the assembly is reflected in the BOM of that assembly as a single BOM item (either in the Assembly Units section or another section — as determined by the value of the BOM Section property).
If required, a subassembly can be represented in the assembly BOM not as a single item, but as several items corresponding to the constituent parts of this subassembly.
To enable the display of constituent parts of the subassembly in the assembly BOM, when inserting subassembly into assembly or editing properties of the subassembly, you switch the Assembly Unit/Constituent Parts toggle switch on the Parameters Panel to the Constituent Parts position. In addition, you can change how a subassembly is displayed in the assembly BOM using the In the structure of the product list, which is accessible on the Parameters Panel when a subassembly is selected. The list contains two items: Constituent parts and assembly unit.
If you select a subassembly to be represented in the assembly as constituent parts, the following subassembly items will be displayed in the assembly BOM:
•components of the first level,
•bodies for which logging in the BOM is enabled,
•constituent parts without visual representation (i.e. being just sets of properties).
In other words, the assembly BOM will include all items included in the subassembly BOM, except for those that are in the Documentation section.
The BOM item corresponding to the subassembly will not be included in the assembly BOM.
BOM items from the subassembly are included in the assembly BOM in the same sections in which they were in the subassembly, and they are sorted and numbered together with the assembly BOM items. The second and subsequent levels of the subassembly structure are not shown in the assembly BOM.
Similarly, subassembly items represented as constituent parts are displayed in the assembly on the Product BOM panels in the assembly.
A sub-assembly which is displayed in the assembly BOM as a set of its constituent parts, is not replaced by a set of constituent parts in the Assembly Build Tree, but is marked with an icon 
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Notes on working with sub-assemblies, represented by constituent
•Working with constituent properties
The work with sub-assembly's constituent properties on Product BOM panels and in the subordinate mode of working with BOM items is constrained:
•only the property values Quantity, Position, and Note are available for editing; in subordinate mode, the text of any property can be split into lines;
•you cannot attach new documents to an assembly part (the document list contains only the documents attached to the item during the editing of the subassembly or its components, the Add Document 
button is unavailable).
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Just like identical constituent parts of an assembly, identical constituent parts of a subassembly are grouped and displayed as one (group) row with quantity indicated. However, unlike the constituent parts of the assembly, for the constituent parts of the subassembly, you can only specify the total quantity, i.e., in the group line. Setting the number of rows in the group is impossible. |
•Transferring the values of the properties from the subassembly to the assembly
Values of sub-assembly's components properties may be transferred to a higher level assembly, depending on the state of the property, i.e. if its value is defined by the property source, or not:
•properties defined by the source are automatically transferred to the assembly after each of their changes;
•properties for which the source-defined determination is disabled (the value may either match the source or differ) are transferred to the assembly once — when the user enables sub-assembly representation by constituents in the assembly.
Therefore we recommend to enable sub-assembly representation by constituents only after you finish setting the component properties.
If you were forced to change property values AFTER enabling sub-assembly representation by constituents (for example, an alternative designation was entered for some component), then in order to transfer those changes to the assembly, you need to switch sub-assembly representation back to the assembly unit mode, and then enable sub-assembly representation by constituents once again.
•Working with objects from the Standard Products application
In the assembly, the action of the Create BOM items command from the Standard Products application menu does not apply to a subassembly represented by component parts. To update the data on standard items in such a subassembly, open it in a separate tab and call the Create BOM items command from the Stock products menu.
