nhf/touhou/houjuu_nue/joints.py

@@ -1362,7 +1362,7 @@ class ElbowJoint(Model):
         def post(sketch: Cq.Sketch) -> Cq.Sketch:
             y_outer = self.disk_joint.total_thickness / 2
             y_inner = self.disk_joint.tongue_thickness / 2
-            if y_outer < y_inner:
+            if y_outer <= y_inner:
                 return sketch
             y = (y_outer + y_inner) / 2
             width = self.lip_side_depression_width

nhf/touhou/houjuu_nue/wing.py

@@ -34,7 +34,7 @@ ELBOW_PARAMS = dict(
 ELBOW_DISK_PARAMS = dict(
     housing_thickness=2.5,
     disk_thickness=6.8,
-    tongue_thickness=12.3,
+    tongue_thickness=2.5 * 2 + 6.8,
 )
 WRIST_DISK_PARAMS = dict(
     movement_angle=30,