diff --git a/build.py b/build.py
index 9a62614..54e2340 100644
--- a/build.py
+++ b/build.py
@@ -16,8 +16,9 @@ clamp_length = 50
 with BuildPart() as mop_scraper_holder:
     with BuildSketch() as profile:
         with BuildLine() as connecting_outline:
-            mop_arc = CenterArc((0, (mop_diameter + center_thickness) / -2), mop_diameter / 2, 90 - (mop_arc_size / 2), mop_arc_size)
-            scraper_arc = CenterArc((0, (scraper_diameter + center_thickness) / 2), scraper_diameter / 2, (scraper_arc_size / 2) - 90, -scraper_arc_size)
+            arc_s = 170
+            mop_arc = CenterArc((0, (mop_diameter + center_thickness) / -2), mop_diameter / 2, 90 - (arc_s / 2), arc_s)
+            scraper_arc = CenterArc((0, (scraper_diameter + center_thickness) / 2), scraper_diameter / 2, (arc_s / 2) - 90, -arc_s)
 
             Line(mop_arc @ 0, scraper_arc @ 0)
             Line(mop_arc @ 1, scraper_arc @ 1)