Modelling
- Last UpdatedMar 11, 2026
- 3 minute read
At the model stage, fabrication related features are defined, such as fabricated pipe ends, assignment of bending machines and design checks for fabrication. Additional catalogue components are also provided as part of Pipe Fabrication.
Assign Bending Machine
A default Bending Machine Reference can be defined for a pipe specification and a Bending Machine Reference in the pipe structure can be modified.
Default Bending Machine Reference in Pipe Specification
To specify a default bending machine reference to each pipe specification using AVEVA Catalogue.
Whenever a pipe is created, the BendMacReference attribute is populated with the default value assigned to the piping specification. By default, the BendMacReference attribute is assigned with a valid default bending machine reference from the pipe specification.

Modify Bending Machine Reference in Pipe Models
If a pipe bend Radius is too large and needs to be changed to a smaller bend radius for design reasons, then the BendMacReference attribute for the zone, pipe or branch can be modified to point to another Fabrication Machine World (FMWL), Group (FMGRP) or Machine (FMBEND).

Click CE to identify the currently selected SITE, ZONE, PIPE or BRAN as the currently selected element.
The list of elements displays the Name, element type and BendMacReference attribute value of each element in the selected pipe structure. The user can select one or more elements to modify.

Select the Highlight selected elements check box to highlight the selected table item in the 3D graphical view.
The Assign Bending Machine part of the Assign Bending Machine window allows the user to assign a new bending machine and modify the bend radius of the selected element.

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Assign Bending Machine |
Select an FMWLD, FMGRP or FMBEND from the drop-down list to assign a BendMacReference attribute value to the selected element. |
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Modify Bend Radius |
Select the check box to modify the bend radius of the selected element by default. Refer to Modify Bend Radius for further information. |
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Tidy |
Select the check box to tidy the BendMacReference attribute value of the selected element by default. Refer to Tidy BendMacReference Element for further information. |
Click Apply to assign a new BendMacReference modify the bend radius of the selected element.