Curve Fillet Options

Construction

Circular – Create a circular fillet with a true radius.

Freeform – Create a fillet between two contact points.

Circular + Lead – Create a circular fillet by specifying the radius where the fillet blends with the original curves (Lead Radius) and the radius at the knee of the fillet (Radius).

Freeform Type

Tangent – Project the tangents at the two contact points, and create the fillet in the direction of the tangent intersection.

Blend – Average the positions of the two contact points to create the fillet. Blend fillets sometimes have an inflection and tend to be shallower than Tangent fillets.

Radius

The default radius of circular fillets. You can enter a new value at the prompt line when you use the tool.

Calculate

Lead Radius – When you set the Radius value, Alias automatically updates the Lead Radius value.

Knee Ratio – When you set the Radius value, Alias automatically updates the Knee Ratio value.

Lead Radius

The radius of the fillet where the fillet blends with the original curves.

Knee Ratio

Specify a radius at the center (or knee) of the fillet as a ratio (or multiple) of the original radius.

The resulting fillet is not truly circular, but its endpoints correspond to the endpoints of a circular fillet with the original radius.

Blend Control

Allows you to change the fillet type (Tangent or Blend) after it is created.

Trim Curves

Automatically trim the original curves back to the endpoints of the fillet.

Create History

Save the Fillet curves history for later editing. If you turn on Create History, you can edit the original curves and the fillet automatically updates.