Parts list in tube and pipe drawings

Before a parts list is created, you must enable structured and parts-only bill of materials (BOM) views in the BOM Editor. As with normal Autodesk Inventor components, library fittings from the same part family are always rolled up together in parts lists since they have the same part number. However, conduit parts behave differently.

In the current version of Autodesk Inventor, conduit item rows in parts lists are not grouped by default. In either drawing templates or specific drawing documents, you can enable the grouping and determine a sequential order of keys to accomplish the grouping. For instance, set the first grouping key to the raw material property (Stock Number).

By default, conduit parts have an empty part number but they may need to be designated as separate components. Though the parts list grouping does not apply to invisible items and items with blank properties, but two drawing properties are typically used to roll up parts lists correctly specifically in a drawing document or universally in drawing templates:

• Conduit segment length: With an internal name of Base Qty. It specifies the length of conduit parts.
• Raw material description: with an internal name of Stock Number. It stores the raw material descriptions for conduit parts.

How are tube and pipe parts rolled up in R9 or earlier parts lists?

In R9 or earlier tube and pipe drawings, item rows in the parts list were merged based on the same part numbers. Because conduit parts have the same part number, the parts list rolls up a single line item for the total conduit segment length in the same standard and nominal diameters.

For instance, a tube and pipe assembly has multiple lengths of a 1/8 inch diameter polyurethane flexible tube with a part number of 00001. The lengths are: 10 inches, 11 inches, 12 inches, and 13 inches. Consequently, the parts list has a single line item for part number 12345 that listed a length of 46 inches. The item number in the parts list shows up in 4 balloons in the assembly drawing.

Note: The total length of conduit segments is critical to calculating the cost and purchasing the material but does not provide individual segment lengths that are needed in assembling the routing system. It is important to provide the needed drawing notes and assembly instructions.

How do parts lists interact with BOM views?

Parts lists are generated from BOM views. Typically, changes to item numbers in BOM views are automatically reflected in the parts lists. To update BOM views when changes are made to item numbers in the parts list, you can manually override the item quantities in BOM views.

How do parts lists work in a tube and pipe iAssembly factory?

When working with drawing documents of a tube and pipe iAssembly factory, you can create a parts list of selected members or a traditional single assembly parts list. You can also create an aggregate parts list of specified members. However, only one BOM view is provided containing the aggregate list of items and item numbers.

By default, the parts list is created based on the active assembly member. To select all or other members, you must edit the parts list at a later time. Separate QTY and Item QTY columns exist as each members item count are affected individually for members with component suppression.