Circular Duct Part Geometry Requirements

The following elements are required to create a circular duct part for using in a duct route assembly. Please note that all feature names and dimension names for duct parts should be as per the names in this topic.

Names of routing sketches and dimensions are case sensitive.

Circular Duct Part Sketch

  • A front-oriented sketch named DuctSketch
  • Two concentric circles, centered at the origin of the sketch, with dimensions named:
    • InnerDiameter@DuctSketch
    • OuterDiameter@DuctSketch



  • An extruded base feature named Extrusion, extruded in the direction of the positive Z-axis
  • A depth dimension named Length@Extrusion



  • A sketch named FilterSketch
  • A circle with a dimension named NominalDiameter