Asymmetric Chamfer Feature
Insert 
Fillet/Chamfer (Part Level)
Use this command to create a constant chamfer
along selected edges based on two setback distances. The second setback
can be specified as an angle using the Angle/Setback option (see
below).
The required inputs include the edges to chamfer, the first setback distance and the angle or second setback distance whichever applies. The optional inputs include the ability to use patch faces in tight corners.
Partial Results Chamfering - In solid
chamfering, if the chamfer fails in the cornering code, the prompt: "Chamfer
failed - partial results?" is displayed. If you select Yes,
a partial results of the chamfer operation is created. The partial results
consist of the new chamfer faces sewn together into a separate shell and
the topology split and/or extended as much as is possible. If you select
No, an error message is returned. This allows you to still create
as much of chamfer geometry as possible even if a failure occurs.
Select the edges to chamfer.
Select the face on the first side of the edge. This face will receive the first setback distance. You may only select a face that borders the selected edge.
Repeat steps 1 and 2 until all of the edges you want to chamfer are selected and their faces are specified and then middle-click to continue.
Specify the first setback distance.
Specify the second setback distance (or angle if the Angle option is selected - see below).
Middle-click to execute the command.
Edges - Select the edges to chamfer.
Setback - Specify the first setback distance.
Angle/Setback - Specifies
how the asymmetric chamfer is defined. Select either of the following.
Angle - The chamfer is defined using the first setback distance
and an angle.
Setback - The chamfer is defined using two setback distances.
Angle - If the Angle option above is selected, specify the angle of the setback measured from the first setback distance.
Setback2 - Specifies the second setback value if Setback above is selected.
Use patch for tight corners - Check this box to use surface patches in tight corners.
