Performing a Draft Analysis

This task shows you how perform a draft analysis of the part and detect areas with no draft or with backdraft.
Open CleanContour01.CATPart from the samples directory.

  1. Click Draft Analysis     in the Analysis toolbar.

  2. Select an axis system (stamping direction).
    The Z-Axis represents the cutting tool axis.

  3. Select the surface or 3D curve to analyze with respect to the Draft Angle.

  4. Check the completion status of key indicators for undercut and vertical areas.

  5. Go to the Draft Analysis tab.
    • If necessary, modify the Draft Angle or the Facets Tolerancy values.
    • Press No Draft Areas or Backdraft Areas to see the list of found areas.

  6. Back in the Definition tab, select more analysis options:
    • Compute Areas: Computes connected areas instead of displaying a number of faces.
    • Fly Analysis: Displays precise analysis values while hovering over the shape.
    • Color mode:
      • Smooth: Displays analysis results as a global color gradient applied to the selected shape.
        Allowed values and draft settings are not used.
      • Face/Edge: Displays analysis results as colors, applied face by face on the shapes.
      • Detailed: Displays analysis results as colors, applied precisely on the shapes.
    • View Mode to display the analysis:
      • Mesh
      • Vectors used to compute the draft angle.
      • Planes used to compute the draft angle.
      • Dots
      • Acute/Obtuse Dots.

A Draft Analysis feature is created. It contains the parameters of the analysis.