diff --git a/follow_focus.py b/follow_focus.py
index 62c1ef7..1260863 100644
--- a/follow_focus.py
+++ b/follow_focus.py
@@ -54,10 +54,14 @@ base = base.threePointArc((center_x+rod_thickness/2, center_y), (last_x, last_y)
 base = base.polarLine(d, 180-slant_degree)
 base = base.close().extrude(20)
 
-base = base.edges('|Z and >Y').fillet(2.5)
-base = base.edges('|Z and <X').fillet(2.5)
+# Fillets
+outer_fillets=2.5
+base = base.edges('|Z and >Y').fillet(outer_fillets)
+base = base.edges('|Z and <X').fillet(outer_fillets)
+#base = base.edges('|Z').fillet(1)
 
+base = base.faces('+Z').shell(-1.6)
 # Render
-show_object(base)
+show_object(base, name='Follow Focus Base')