diff --git a/post_cap.py b/post_cap.py
index df1a2f3..1f5bf78 100644
--- a/post_cap.py
+++ b/post_cap.py
@@ -17,6 +17,11 @@ with BuildPart() as p:
             Ellipse(20 , 8)
         split(bisect_by=Plane.YZ)
     revolve(axis=Axis.Z)
+    with BuildLine(Plane.XZ) as l1:
+        CenterArc(center=(-15, 20), radius=17, start_angle=90, arc_size=180)
 
-show_object(p)
+# export_step(p.part, "/home/pali112/Build123d/debug.step")
+
+debug(l1.line, name="ucho")
+# show_object(p)
 debug(s.sketch)