diff --git a/prototype/circles.py b/prototype/circles.py
index 322b670..d191102 100644
--- a/prototype/circles.py
+++ b/prototype/circles.py
@@ -138,7 +138,7 @@ def svg_half_circle(id, name, c, r, angle, orientation_flag=1):
 
     text = ['      <path \n     '
             '        id="path666" \n       '
-            '        style="fill:none;stroke:#ff0000;stroke-width:0.60000002" \n'
+            '        style="fill:none;stroke:#000000;stroke-width:0.60000002" \n'
             '        d="M {} {} A {} {} 0 {} {} {} {}"'
             '      />\n'.format(begin[0], begin[1], radius_scaled, radius_scaled, orientation_flag, orientation_flag,
                                 end[0], end[1])]
@@ -151,7 +151,7 @@ def svg_arc(p1, p2, r,  large_arc, sweep):
     radius_scaled = r * svg_scale
     text = ['      <path \n     '
             '        id="path666" \n       '
-            '        style="fill:none;stroke:#ff0000;stroke-width:0.60000002" \n'
+            '        style="fill:none;stroke:#000000;stroke-width:0.60000002" \n'
             '        d="M {} {} A {} {} 0 {} {} {} {}"'
             '      />\n'.format(begin[0], begin[1], radius_scaled, radius_scaled, large_arc, sweep,
                                 end[0], end[1])]
@@ -589,7 +589,7 @@ class PlateLayout:
     def output_segment(self, f_lines, k):
 
         # k = which segment?
-        k_next = (k + 1) % 5
+        k_next = (k + 1) % self.N
 
         # center hole
         a = self.tube_1_angles[k]
@@ -679,8 +679,6 @@ class PlateLayout:
         #text = svg_line(p3, p4, 0.1)
         f_lines = f_lines + text
 
-        outer_point_1 = p4
-
         # segment border (left)
         a = self.tube_1_angles[k_next]
         a = a / 360.0 * 2.0 * np.pi
@@ -700,7 +698,14 @@ class PlateLayout:
         text = svg_line_puzzle(p3, p4)
         f_lines = f_lines + text
 
-        outer_point_2 = p4
+        r_pitch_minus_module = self.target_plate_radius - self.plate_module
+        a1 = (self.tube_1_angles[k] - 0.9) / 360.0 * 2.0 * np.pi
+        vunit1 = np.array([np.cos(a1), np.sin(a1)])
+        outer_point_1 = vunit1 * r_pitch_minus_module
+
+        a2 = (self.tube_1_angles[k_next] - 0.9) / 360.0 * 2.0 * np.pi
+        vunit2 = np.array([np.cos(a2), np.sin(a2)])
+        outer_point_2 = vunit2 * r_pitch_minus_module
 
         # truncate gear path
         for j in range(len(f_lines)):
@@ -724,6 +729,23 @@ class PlateLayout:
                 dist_1 = [np.linalg.norm(c - outer_point_1 * svg_scale) for c in coordinates]
                 dist_2 = [np.linalg.norm(c - outer_point_2 * svg_scale) for c in coordinates]
 
+                min_dist_index_1 = np.argmin(dist_1)
+                min_dist_index_2 = np.argmin(dist_2)
+
+                if min_dist_index_2 > min_dist_index_1:
+                    coordinates = coordinates[min_dist_index_1:min_dist_index_2+1]
+                else:
+                    coordinates = coordinates[min_dist_index_1:] + coordinates[0:min_dist_index_2]
+                    print("TODO: check this")
+
+                coordinates_data_raw_new = "".join(['{},{} '.format(c[0], c[1]) for c in coordinates])
+
+                gear_data_new = gear_data[0:index_start] + "M " + coordinates_data_raw_new + gear_data[index_end+1:]
+                f_lines[j] = gear_data_new
+
+
+
+
                 # find minimum distance and keep only points between the two distances
                 # problem: does not consider manual rotation of the plate
                 # -> rotate points outer_point_1 and outer_point_2 before computing the distance