diff --git a/script/Alignment/Gun_solenoid_alignment.py b/script/Alignment/Gun_solenoid_alignment.py
index 0ef53c1..65328ce 100755
--- a/script/Alignment/Gun_solenoid_alignment.py
+++ b/script/Alignment/Gun_solenoid_alignment.py
@@ -37,7 +37,7 @@ plot_name = datetime.datetime.fromtimestamp(time.time()).strftime('%H%M%S')
 
 
 add_device(CamTool("camtool") , True)
-camtool.setNumberOfImages(number_images)
+camtool.setNumberOfImages(max(number_images,1))
 camtool.enableBackground (use_background)
 if use_background and not multiple_background:
     laser_off()
@@ -95,7 +95,8 @@ r = None
 if not multiple_background:
     laser_on()
 try:    
-    sensors =  [camtool.com_x, camtool.com_y] 
+    #sensors =  [camtool.com_x, camtool.com_y] 
+    sensors =  [camtool.com_x_mean, camtool.com_y_mean] 
     if plot_image:
         sensors.append(camtool.image)
     r = lscan(gun_solenoid, sensors , I1, I2, dI, settling_time, before_read = br, after_read = ar)
diff --git a/script/camtool.py b/script/camtool.py
index e2bcb33..9334c44 100644
--- a/script/camtool.py
+++ b/script/camtool.py
@@ -53,10 +53,12 @@ class CamTool(DeviceBase):
         self.com_x_samples, self.com_y_samples = [], []
         class CamToolComX(Readable):
             def read(self):     
+                print "X", self.camtool.com_x_samples, mean(self.camtool.com_x_samples)
                 return mean(self.camtool.com_x_samples)
         self.com_x_mean = CamToolComX(); self.com_x_mean.camtool = self
         class CamToolComY(Readable):
             def read(self):     
+                print "Y", self.camtool.com_y_samples, mean(self.camtool.com_y_samples)
                 return mean(self.camtool.com_y_samples)
         self.com_y_mean = CamToolComY(); self.com_y_mean.camtool = self
         class CamToolComXVar(Readable):