Linear Cast-in Material (Linear CIM) is mostly used for adding or removing material. A good example is Gap Connectors. The Linear CIM is dynamic in the longitudinal direction. The Linear CIM can be used in Joints or be added to elements directly. 

Note: Linear Cast-in Material is currently available only for walls, Beams, and Columns. 

Figure 1: Wall with Gap Connector created with Linear CIM

Create Linear CIM

In the example below, the Gap Connector in the wall above will be created. 

First, one needs to create the geometry of the Linear CIM as an AutoCAD Polyline. 

Figure 2: Draw the geometry with a Polyline

Continue with defining the Linear CIM by clicking on and create new on the right level (Common, Local or Project level). 

The next step is to define the Linear CIM. Start with launching the command Linear Cast-in Material and create a new definition on any level. Add a name and description and hit ok. There is some general information that should be added in the dialog for dynamic CIM. 

General tab

• Description
• Reference - if some sort of item number needs to be added
• Group - which category the dynamic CIM should be located under
• Horizontal/vertical dimension style - how the dynamic CIM should be dimensioned 
• Cut reinforcement mesh 
• Show depth in annotation text 

Under the Linear CIM tab the user can add specific information about the dynamic CIM

• Linetype - if the dynamic CIM should have another linetype than the default
• MTO - how the material take-off should be handled
  • No MTO
  • By length - sums up the total length of all dynamic CIMs with the same definition
  • By quantity and unit length - sums up the number of dynamic CIMs with the same definition and the same length
  • By Piece - sums up the total amount of dynamic CIMs and disregard the length
• Symbol - the symbol that is used for displaying the Linear CIM. 
• Geometry - defining the geometry of the Linear CIM.
  • Type of Linear CIM
    • Add material
    • Remove material
    • No geometry - the Linear CIM will be displayed as a line
  • The box next to the geometry - the user can define if/which corners that should be visible on drawings. 

Figure 3: Defining the Linear CIM 

Applying the Linear CIM

The Linear CIM can be applied directly to a wall or used when Wall Joints are defined. 

Draw Linear CIM

When applying the Linear CIM directly to the wall, there are two commands that can be used

• Draw Horizontal Linear Cast-in Material...
• Draw Vertical Linear Cast-in Material...

Figure 4: Apply a Vertical Linear Cast-in Material

Define in Wall Joint

The Linear CIM can also be added to the Wall Joint definition. 

Figure 5: Use the Linear CIM in Wall Joint definition