About Editing Chamfer Geometry in Creo Flexible Modeling
Use 
Edit Chamfer to change a chamfer distance, offset distance, or angle, change the dimensioning scheme, or remove chamfer geometry. You can edit multiple chamfer sets in a single edit chamfer feature.
Edit Chamfer to change a chamfer distance, offset distance, or angle, change the dimensioning scheme, or remove chamfer geometry. You can edit multiple chamfer sets in a single edit chamfer feature.Interfering rounds and chamfers are neighboring surfaces that have to be removed in order to enable editing. When you edit chamfer geometry, interfering round and chamfer geometry is removed and recreated with the same dimensions. However, you can choose not to recreate interfering rounds and chamfers.