diff --git a/circle.json b/circle.json
index cd5c167..5d540ac 100644
--- a/circle.json
+++ b/circle.json
@@ -94,7 +94,7 @@
             "p": [
                 6.0,
                 0.0,
-                0.0
+                -1.0
             ],
             "q": [
                 0.0,
@@ -113,7 +113,7 @@
             "p": [
                 6.0,
                 0.0,
-                0.0
+                -5.0
             ],
             "q": [
                 0.0,
@@ -123,8 +123,9 @@
             ],
             "name": "M01",
             "face_type": "symm",
-            "face_geometry": "parabola",
-            "face_f": 5.0,
+            "face_geometry": "circle",
+            "scale": 2,
+            "face_f": 1e10,
             "face_g": 1e10,
             "draw_material": "metal"
         },
@@ -142,7 +143,8 @@
             ],
             "name": "M11",
             "face_type": "symm",
-            "face_geometry": "parabola",
+            "face_geometry": "circle",
+            "scale": 2,
             "face_f": 1.0,
             "face_g": 1e10,
             "draw_material": "metal"
@@ -219,10 +221,30 @@
             "name": "M6",
             "face_type": "symm",
             "face_geometry": "circle",
+            "scale": 2.5,
             "face_f": 1e10,
             "face_g": 1e10,
             "draw_material": "metal"
         },
+        {
+            "p": [
+                -6.0,
+                0.0,
+                -1.0
+            ],
+            "q": [
+                1.0,
+                0.0,
+                0.0,
+                0.0
+            ],
+            "name": "E0",
+            "face_type": "symm",
+            "face_geometry": "circle",
+            "face_f": 1e10,
+            "face_g": 1e10,
+            "draw_material": "nothing"
+        },
         {
             "p": [
                 0.0,
@@ -238,7 +260,6 @@
             "name": "M7",
             "face_type": "symm",
             "face_geometry": "circle",
-            "scale": 3,
             "face_f": 1.0,
             "face_g": -6.875220831710909,
             "draw_material": "metal"