-
In the tree view, click Piping > Piping Specification > Piping Materials Classes.
-
In the Piping Materials Classes branch, open a specification and click Piping Materials Class Rules > Auto Router Cost Evaluation.
-
Click the Insert Row Command to insert a blank row in the grid view.
-
In the NPD column, type the nominal pipe diameter for which you are defining a cost factor.
-
In the NPD Unit Type column, type the units for the NPD. For example, type mm or in.
-
In the Linear Cost factor column, type the NPD linear cost for the NPD size as relative cost per unit length of the route.
-
In the Bend Cost factor column, type the bend cost for the NPD as the equivalent cost of the bend, expressed as a length of pipe.
The Auto Router Cost Evaluation sheet in the workbook corresponds to the Auto Router Cost Evaluation node in the Catalog task. See Piping Reference Data.