Details on the “3D Air Duct Construction” Tab in the Configuration
Information about the 3D Air Duct Construction tab in the LINEAR configuration.
In this dialog, you make specific default settings for the LINEAR 3D air duct design.
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Rectangular duct
Section Length: Specifies the section length for ducts in mm. If you would like to work without section lengths, enter 0 mm as the section length.
Extensions: Specifies the extension for transitions in mm.
Inner Radius: Specifies the inner radius for bends in mm.
Separating plate starting from: Specifies the duct size from which a separating plate will be inserted. Enter the value 0 so that separator plates do not appear in the parts list.
Length of Reducers: Specifies the value suggested in the Length field in the dialog box for transitions.
Floor Length: Specifies the value suggested in the Length field in the dialog box for swan necks.
Max. Angle: Specifies the maximum angle dimension for air ducts. If you activate the maximum angle by setting the check mark, the length for the transitions and swan necks in the dialog boxes is automatically determined optimally in terms of flow. If you deactivate the maximum angle by removing the check mark, the length for transitions and swan necks will be suggested with the lengths you have specified for the 3D air duct construction.
Pipe/Oval duct
Specifies the maximum pipe lengths for round pipe and oval duct. If you enter a maximum pipe length of 3000 mm here, round and oval ducts will be drawn in sections of 3000 mm each in your drawing and taken into account for the parts list. If you would like to work without section lengths, enter 0 mm.
Item numbers
For rectangular duct components only: If this setting is activated, position numbers are only assigned for rectangular ducts.
Bill of quantities
Bill of qties acc. Austrian standard: Specifies whether the bill of quantities should be carried out according to Austrian standard.
Oversize fittings: Specifies whether fittings are to be oversized.
Automatic connecting
Specifies whether sockets should be installed during automatic connecting and how long the connection of the flexible connection should be. The setting 0 in the Length of flexible connection means that no flexible connection is used.
Distance for storey snap
Specifies the distances for the storey snap. When working with a storey table, the reference edges upper edge floor (UEFL) and bottom edge ceiling (BEC) are automatically snapped with the set value when drawing vertically with the Ctrl key pressed.
Tolerance
Determines the tolerance for the distance between two air ducts, within which two air duct connections are still recognized as connected in the design by AutoCAD. When moving air duct components, other components whose connections are within this tolerance limit are also moved. The tolerance is only taken into account for air duct connections that have the same dimensions or the same nominal widths and are aligned or slightly offset to each other.
The value for the tolerance only affects the design of air duct networks and has no influence on the calculation. The tolerance for the calculation must be set separately.
After changing this value, AutoCAD must be restarted for the changes to take effect.
Passage height
Specifies the height that should be kept clear during the height distance at passage height.
Connector tool tip
Specifies which information is displayed when connecting to a component.
Duct cast shadow
Specifies whether shadows are created for the ducts in the drawing.