+ Fillet by variable radius
+
+Input fields:
+
+- **Faces or/and edges** panel contains filleted faces and edges. All edges of a face are subject to fillet operation. Faces and edges are selected in 3D OCC viewer;
+- **Start radius** defines the fillet radius at the start of the selected edge(s);
+- **End radius** defines the fillet radius at the end of the selected edge(s).
+
+**TUI Command**: *model.addFillet(Part_doc, [face,edge], R1, R2)*
+
+**Arguments**: part + list of faces and edges subjected to fillet operation in format *model.selection(TYPE, shape)* + 2 reals (start and end radius values).
+
+Result
+""""""
+
+Result of **Fillet by variable radius** is shown below.
+
+.. image:: images/fillet_var_rad.png
+ :align: center
+
+.. centered::
+ Fillet by variable radius
+
+**See Also** a sample TUI Script of :ref:`tui_create_fillet2` operation.