Fixed size of head with fans for UMO2 family

resources/machines/ultimaker2.json

@@ -43,19 +43,19 @@
             "default": [
                 [
                     -40,
-                    30
+                    10
                 ],
                 [
                     -40,
-                    -10
+                    -30
                 ],
                 [
                     60,
-                    -10
+                    10
                 ],
                 [
                     60,
-                    30
+                    -30
                 ]
             ]
         },