diff --git a/follow_focus.py b/follow_focus.py
index 9e383b0..62c1ef7 100644
--- a/follow_focus.py
+++ b/follow_focus.py
@@ -10,13 +10,13 @@ thickness=20
 rod_thickness=15.2
 loop_thickness=1.5
 stepper_motor_size=42
-offset=8.83
+offset=9
 
 gap = stepper_motor_size * math.sin(math.radians(slant_degree)) / math.sin(math.radians(90-slant_degree))
 width = math.sqrt(gap**2 + stepper_motor_size**2 - 2*gap*stepper_motor_size*math.cos(math.radians(90)))
 base = cq.Workplane('XY').lineTo(0,offset).polarLine(stepper_motor_size, 90-slant_degree)
 end_x=gap+stepper_motor_size-5
-end_y=-3.5
+end_y=-4.5
 angle=40
 outer_ring_diameter=rod_thickness+2*loop_thickness
 center_x=end_x-math.cos(math.radians(angle))*outer_ring_diameter/2
@@ -39,7 +39,7 @@ def findRodInter(n_x, n_y):
 
 base = base.hLine(width).polarLine(stepper_motor_size-5,270-slant_degree).tangentArcPoint((end_x, end_y), relative=False)
 d=20
-t=6
+t=7
 outer_x=center_x+math.cos(math.radians(270-slant_degree))*outer_ring_diameter/2
 outer_y=center_y+math.sin(math.radians(270-slant_degree))*outer_ring_diameter/2
 base = base.threePointArc((center_x+outer_ring_diameter/2 ,center_y), (outer_x, outer_y)).polarLine(d, 180-slant_degree).vLine(t)
@@ -51,9 +51,12 @@ last_x, last_y = findRodInter(n_x, n_y+2)
 
 base = base.lineTo(coor_x, coor_y)
 base = base.threePointArc((center_x+rod_thickness/2, center_y), (last_x, last_y))
-base = base.polarLine(15, 180-slant_degree)
+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)
+
 # Render
 show_object(base)