diff --git a/src/main/java/com/dreamworks/boditech/driver/consumable/CsmLargeBufferTube.java b/src/main/java/com/dreamworks/boditech/driver/consumable/CsmLargeBufferTube.java
index c5e3008..177efbc 100644
--- a/src/main/java/com/dreamworks/boditech/driver/consumable/CsmLargeBufferTube.java
+++ b/src/main/java/com/dreamworks/boditech/driver/consumable/CsmLargeBufferTube.java
@@ -1,59 +1,45 @@
 package com.dreamworks.boditech.driver.consumable;
-public class CsmLargeBufferTube {
+import com.fasterxml.jackson.annotation.JsonIgnore;
+public class CsmLargeBufferTube extends ConsumableBase {
+    // manager
+    private final CsmLargeBufferTubeManager manager;
+
     // index of tube : 0 - 5
     public Integer index = -1;
     // if the tube is loaded
     public Boolean isLoaded = false;
-
-
-    // position
-    public Integer position = -1;
-    // project id
-    public Integer projectId = 0;
-    // project name
-    public String projectName = "";
-    // project color
-    public String projectColor = "";
     // amount
     public Integer amount;
 
-
-    public static final String STATUS_NOT_LOADED = "NOT_LOADED";
-    public static final String STATUS_LOADED = "LOADED";
-    // status
-    public String status = CsmLargeBufferTube.STATUS_NOT_LOADED;
-
-    // exists
-    public Boolean exists = false;
-
-    // manager
-    private final CsmLargeBufferTubeManager manager;
-
     // constructor
     public CsmLargeBufferTube(CsmLargeBufferTubeManager manager) {
         this.manager = manager;
     }
 
     // get location x
+    @JsonIgnore
     public Integer getLocationX() {
         Integer startLocation = this.manager.getDevice().getLocationByName("largeBufferTubeAspirationStart.x");
         Integer distance = this.manager.getDevice().getLocationByName("largeBufferTubeAspirationDistanceX");
-        return startLocation - distance * (this.position % 3);
+        return startLocation - distance * (this.index % 3);
     }
 
     // get location y
+    @JsonIgnore
     public Integer getLocationY() {
         Integer startLocation = this.manager.getDevice().getLocationByName("largeBufferTubeAspirationStart.y");
         Integer distance = this.manager.getDevice().getLocationByName("largeBufferTubeAspirationDistanceY");
-        return startLocation - distance * (this.position / 2);
+        return startLocation - distance * (this.index / 2);
     }
 
     // get location z
+    @JsonIgnore
     public Integer getLocationZ() {
         return this.manager.getDevice().getLocationByName("largeBufferTuebAspirationDepth");
     }
 
     // get if the tube is empty
+    @JsonIgnore
     public boolean isEmpty() {
         // @TODO : check if the tube is empty
         return false;
diff --git a/src/main/java/com/dreamworks/boditech/driver/consumable/CsmLargeBufferTubeManager.java b/src/main/java/com/dreamworks/boditech/driver/consumable/CsmLargeBufferTubeManager.java
index 2649f30..310ef72 100644
--- a/src/main/java/com/dreamworks/boditech/driver/consumable/CsmLargeBufferTubeManager.java
+++ b/src/main/java/com/dreamworks/boditech/driver/consumable/CsmLargeBufferTubeManager.java
@@ -16,9 +16,7 @@ public class CsmLargeBufferTubeManager {
         this.device = device;
         for ( int i=0; i<6; i++ ) {
             CsmLargeBufferTube tube = new CsmLargeBufferTube(this);
-            tube.position = i;
             tube.index = i;
-            tube.status = CsmLargeBufferTube.STATUS_NOT_LOADED;
             this.largeBufferTubes.add(tube);
         }
     }
@@ -50,12 +48,10 @@ public class CsmLargeBufferTubeManager {
         }
 
         CsmLargeBufferTube box = this.largeBufferTubes.get(index);
-        box.projectName = project.name;
-        box.projectId = project.id;
-        box.projectColor = project.color;
+        box.setProject(project);
+        box.lotCode = lotCode;
         box.amount = 25;
         box.isLoaded = true;
-        box.status = CsmLargeBufferTube.STATUS_LOADED;
     }
 
 
@@ -99,9 +95,9 @@ public class CsmLargeBufferTubeManager {
     public CsmLargeBufferTube getTubeByProjectName( String projectName ) {
         CsmLargeBufferTube tube = null;
         for ( CsmLargeBufferTube tmp : this.largeBufferTubes ) {
-            if ( !tmp.projectName.equals(projectName) ) {
-                continue ;
-            }
+//            if ( !tmp.projectName.equals(projectName) ) {
+//                continue ;
+//            }
             if ( tmp.isEmpty() ) {
                 continue;
             }
@@ -117,11 +113,11 @@ public class CsmLargeBufferTubeManager {
     // update large buffer tube
     public void update(ParamLargeBufferTubeUpdate param ) {
         // delete all large buffer tubes with matched position
-        this.largeBufferTubes.removeIf(largeBufferTube -> largeBufferTube.position.equals(param.position));
+//        this.largeBufferTubes.removeIf(largeBufferTube -> largeBufferTube.position.equals(param.position));
 
-        CsmLargeBufferTube largeBufferTube = new CsmLargeBufferTube(this);
-        largeBufferTube.position = param.position;
+//        CsmLargeBufferTube largeBufferTube = new CsmLargeBufferTube(this);
+//        largeBufferTube.position = param.position;
 //        largeBufferTube.projectName = param.projectName;
-        this.largeBufferTubes.add(largeBufferTube);
+//        this.largeBufferTubes.add(largeBufferTube);
     }
 }
diff --git a/src/main/java/com/dreamworks/boditech/service/DeviceService.java b/src/main/java/com/dreamworks/boditech/service/DeviceService.java
index 86349ca..9ccb801 100644
--- a/src/main/java/com/dreamworks/boditech/service/DeviceService.java
+++ b/src/main/java/com/dreamworks/boditech/service/DeviceService.java
@@ -107,27 +107,7 @@ public class DeviceService {
 
     // get status
     public Map<String, Object> status() {
-        Map<String,Object> status = new HashMap<>();
-
-        // large buffer tube
-        List<CsmLargeBufferTube> largeBufferTubeList = this.device.largeBufferTubes.getAll();
-        CsmLargeBufferTube[] largeBufferTubes = new CsmLargeBufferTube[6];
-        for ( int i=0; i<largeBufferTubes.length; i++ ) {
-            largeBufferTubes[i] = new CsmLargeBufferTube(this.device.largeBufferTubes);
-        }
-        for ( CsmLargeBufferTube largeBufferTube : largeBufferTubeList ) {
-            Integer index = largeBufferTube.position;
-            largeBufferTubes[index].projectName = largeBufferTube.projectName;
-        }
-        status.put("largeBufferTubes", largeBufferTubes);
-
-        // buffer tube area
-        BufferTubeArea[] bufferTubeAreas = new BufferTubeArea[6];
-        for ( int i=0; i<bufferTubeAreas.length; i++ ) {
-            bufferTubeAreas[i] = new BufferTubeArea();
-        }
-
-        return status;
+        return new HashMap<>();
     }
 
     // start