diff --git a/script/camtool.py b/script/camtool.py
index df3201d..902cbdf 100644
--- a/script/camtool.py
+++ b/script/camtool.py
@@ -49,12 +49,13 @@ class CamTool(DeviceBase):
         self.num_images = 1
         self.image = CamToolImage(self)
         set_device_alias(self.image, name + " image")
-        
+
+        self.com_x_samples = [1.0,2.0, 3.0]
         class CamToolComX(Readable):
-            def read(self):        
+            def read(self):     
+                print dir(self)   
                 return mean(self.com_x_samples)
-        self.com_x_mean = CamToolComX()
-        self.com_x_mean.com_x_samples = [1.0,2.0, 3.0]
+        self.com_x_mean = CamToolComX()                
         set_device_alias(self.com_x_mean, name + " com x mean")
 
     def doInitialize(self):        
@@ -125,7 +126,7 @@ class CamTool(DeviceBase):
 
 if __name__ == "__builtin__":
     camera_tool = CamTool("camtool")
-
+    print camtool.com_x_mean.read()
     camera_tool.enableBackground(False)
     camera_tool.enableBackground(True)
     camera_tool.captureBackground(5)