A draft line is a collection of features used to create tangent draft for parts with complex geometry. A draft line consists of any draft curves, parting curves, and datum curves used to create the draft. The draft line acts as a trajectory to drive a tangent draft feature.

A draft curve is a curve on the reference model created from a locus of points where a surface, oriented at a specified draft angle to the pull direction, is tangent to the part. In other words, it indicates where the edge of the draft becomes tangent to the drafted surface.

A parting curve is located on the parting surface and is created from a locus of points where a surface, tangent to the part surfaces and oriented at the specified draft angle to the pull direction, intersects the parting surface. Before you can create parting curves, you must define a parting surface for the reference model.

You can create a draft line feature on a reference model regardless of whether a workpiece or die block is present.

Before you can create draft line features, such as draft and parting curves, you must define the draft environment.