diff --git a/nhf/touhou/shiki_eiki/crown.py b/nhf/touhou/shiki_eiki/crown.py
index 5e248d8..590dc0b 100644
--- a/nhf/touhou/shiki_eiki/crown.py
+++ b/nhf/touhou/shiki_eiki/crown.py
@@ -51,6 +51,13 @@ class Crown(Model):
             ])
         )
 
+    @target(name="dot", kind=TargetKind.DXF)
+    def profile_dot(self) -> Cq.Sketch:
+        return (
+            Cq.Sketch()
+            .circle(self.margin / 2)
+        )
+
     @target(name="front", kind=TargetKind.DXF)
     def profile_front(self) -> Cq.Sketch:
         dx_l = self.facet_width_lower