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The “Cannot Add Draft” message in Vectric software usually indicates a problem applying a draft angle to a 3D model component, not an issue with adding a drawing or draft file. This error most often points to invalid or problematic 3D geometry.

What This Message Means

Vectric is unable to apply a consistent draft (tapered edge) to the selected 3D component due to one or more of the following:

  • Geometry issues, such as:
    • Overlapping or self-intersecting meshes
    • Non-manifold geometry (edges shared by more than two faces)
    • Empty, incomplete, or corrupt 3D models
  • Visibility conflicts: The Add Draft tool applies to all visible 3D components. If multiple components are visible, or the intended model is hidden, the operation may fail.
  • Import problems: Recently imported STL or OBJ files may have scaling, orientation, or mesh errors that prevent drafting.
  • Software limitation or bug: In rare cases, the issue may be version-specific and resolved by updating Vectric.

How to Resolve the Issue

  • Check component visibility
    Ensure only the intended 3D component is visible in the Component Tree.
  • Validate source vectors
    If the model was created from vectors, run the Vector Validator to identify and fix errors.
  • Simplify the model
    Reduce model complexity in the source software or within Vectric before applying a draft.
  • Re-import the 3D file
    Import the model again, confirming correct scale and orientation.