R9 or earlier BOM migration

For new tube and pipe assemblies, the current bill of materials (BOM) is used to create drawing documents. For R9 or earlier tube and pipe assemblies, R9 BOM is used by default. Note that earlier BOMs must first migrate to R9 BOM. You can convert associated drawing documents to the current BOM. You can then add the stock number column to parts lists and allow for new summation.

The first time you open a R9 or earlier tube and pipe assembly, the tube and pipe assembly is migrated. You must determine how to create parts lists in drawing views:

• Using the R9 BOM.
• Using the current BOM. You can assign a unique part number for conduit parts .

Note: Make sure the Use R9 Bill of Materials in the Tube & Pipe Settings dialog box is selected until you are ready for conversion.

What are the prerequisites for converting R9 BOM to the current BOM?

• The part number property must be unique or empty for conduit parts .
• The stock number property must not be empty to allow summation in parts lists based on raw material description. When a R9 or earlier tube and pipe assembly is migrated, the stock number property defaults to define the same raw material description for conduit parts as defined by the part number property in the previous version.
• Converting an R9 or earlier tube and pipe assembly to the current BOM mechanism cannot automatically update associated parts lists. All parts lists in drawing views must be manually converted before or after converting the assembly.

How do R9 BOM and the current BOM differ?

In the current version of Autodesk Inventor:

• The raw material description for conduit parts is stored in the new stock number property.
• All BOM items with the same part number are automatically merged in parts lists. If the part number is blank, parts do not merge.

In R9 or earlier versions:

• The raw material description for conduit parts was stored in the part number property.
• You had control over the merging of rows in the parts list. Even if two pipes had the same part number, you could choose not to merge them.

What happens when a R9 or earlier tube and pipe assembly is converted to the current BOM?

During migration, the part number property is copied to the new stock number property. The original part number property for all conduit parts remains.

During conversion to the current BOM mechanism, the part number property is changed to blank if you select to clear the part number for all conduit parts. It ensures that conduit parts in the same style do not merge in parts lists.

Why is a unique or blank part number property required for all conduit parts?

Tube and pipe styles determine the conduit parts and fittings that are used to populate routes and runs. For a legacy tube and pipe assembly populated with specific tube and pipe styles in R9 or earlier versions, it usually contained many occurrences of the same standard tube and pipe parts. In R9 or earlier tube and pipe assemblies, conduit parts and fittings from the same part family had the same part number because their material description was the same as specified in the styles. In the current version, parts with the same part number are automatically merged and you cannot separate them in the parts lists.

To prevent BOM items with the same part number from being merged in the current BOM mechanism, you must specify a unique or blank part number for conduit parts for conversion.

How are the part number and stock number for tube and pipe parts edited?

• During conversion, it is recommended that you follow the Autodesk Inventor prompts to automatically clear the part number property for all conduit parts . You can then manually specify the part number property for appropriate parts at a later time.
  Note: All previous manual edits to the part number property are lost using this option. If you already have unique part numbers assigned to conduit parts, using this option is not recommended.
• Use the Design Assistant tool to change the part number and stock number properties for all the specified conduit parts.
• Edit the part number and stock number properties in the Properties dialog box.

Can a tube and pipe assembly revert to R9 BOM after conversion?

Once a tube and pipe assembly is converted to use the current BOM mechanism, there is no automatic way to revert back to R9 BOM. You can manually copy the stock number property into the part number property for all conduit parts or edit the parts list to merge rows by the stock number column, but it is not recommended.