Counting mode and maximal level

For hierarchical BOM tables, 2 counting modes are supported:
  • Count all instances

    The total number of subassemblies and parts in the entire assembly.

  • Count instances in parent component

    The total number of subassemblies and parts in the parent component. The parent component is considered as the root component.

For example, the main Tripod assembly contains 3 Tripod foot assemblies. Each instance of a Tripod foot assembly contains 1 Bond assembly and 1 Tube assembly.

If the counting mode is set to Count all instances, the result is:

# Component Quantity
1 Tripod assembly 1
1.1 Tripod foot assembly 3
1.1.1 Bond assembly 3
1.1.2 Tubes assembly 3

If the counting mode is set to Count instances in parent component, the result is:

# Component Quantity
1 Tripod assembly 1
1.1 Tripod foot assembly 3
1.1.1 Bond assembly 1
1.1.2 Tubes assembly 1

The default value for the counting mode is Count instances in parent component. You can change the counting mode in the BOM Manager, or with the BMBOM command.

Note: Before BricsCAD® V20.2, all hierarchical BOM tables used the Count all instances mode by default. When such tables are updated in BricsCAD® V20.2 or later, the default mode is set to Count instances in parent component. This may result in different quantities for some parts. If necessary, manually set the counting mode in the BOM Manager.

By default, hierarchical bills of materials show all levels in the model. It is possible to limit a hierarchical BOM to a certain level using Max level property. When the maximal level is set, only parts up to that level will be included. For example, if Max level = 2, only top level components and subcomponents directly included in top level components will be listed.