diff --git a/source/AStack.cpp b/source/AStack.cpp
index bb6ea46..21407d1 100644
--- a/source/AStack.cpp
+++ b/source/AStack.cpp
@@ -26,10 +26,6 @@ AStack::AStack(StackType type, const std::string &name)
 {
 }
 
-AStack::AStack(const AStack& orig)
-{
-}
-
 AStack::~AStack()
 {
 	Layer *pLayer = m_pLayers;
@@ -41,39 +37,6 @@ AStack::~AStack()
 	}
 }
 
-AStack::AStack(StackType type, const std::string &name, Json::Value& layers, LayerConstructor* pLayerConstructor)
-: m_type(type)
-, m_name(name)
-, m_pLayers(nullptr)
-{
-	for (int i=0; i < layers.size(); i++)
-	{
-		Json::Value &layer = layers[i];
-		
-		string layername = layer["name"].asString();
-		int numVisibleX = layer["numVisibleX"].asInt();
-		int numVisibleY = layer["numVisibleY"].asInt();
-		int numHidden = layer["numHidden"].asInt();
-		int numContext = layer["numContext"].asInt();
-		
-		Layer *pLayer = nullptr;
-		if (!pLayerConstructor)
-		{
-			pLayer = new Layer(layername, i, numVisibleX, numVisibleY, numHidden, numContext);
-		}
-		else
-		{
-			pLayer = pLayerConstructor->onConstruct(this, layername, i, numVisibleX, numVisibleY, numHidden, numContext);
-		}
-		
-		assert(pLayer != nullptr);
-		
-		pLayer->fromJson(layer["rbm"]);
-		addLayer(pLayer);
-	}
-
-}
-
 AStack::StackType AStack::type()
 {
 	return m_type;
diff --git a/source/AStack.hpp b/source/AStack.hpp
index 80815b2..0b95715 100644
--- a/source/AStack.hpp
+++ b/source/AStack.hpp
@@ -48,8 +48,7 @@ public:
 	static const char *stackTypeStrings[NUM_STACKTYPES];
 	
 	AStack(StackType type, const std::string &name);
-	AStack(StackType type, const std::string &name, Json::Value &layers, LayerConstructor *pLayerConstructor=nullptr);
-	AStack(const AStack& orig);
+	AStack(const AStack& orig) = delete;
 	virtual ~AStack();
 	
 	StackType type();
diff --git a/source/DeepStack.cpp b/source/DeepStack.cpp
index 602ee75..8b54d2e 100644
--- a/source/DeepStack.cpp
+++ b/source/DeepStack.cpp
@@ -20,12 +20,6 @@ DeepStack::DeepStack(const std::string &name)
 {
 }
 
-DeepStack::DeepStack(const std::string &name, Json::Value& layers, LayerConstructor* pLayerConstructor)
-: AStack(StackType::Deep, name, layers, pLayerConstructor)
-{
-
-}
-
 DeepStack::~DeepStack()
 { 
 }
diff --git a/source/DeepStack.hpp b/source/DeepStack.hpp
index af15f26..99e3373 100644
--- a/source/DeepStack.hpp
+++ b/source/DeepStack.hpp
@@ -25,7 +25,6 @@ class DeepStack : public AStack
 {
 public:
 	DeepStack(const std::string &name);
-	DeepStack(const std::string &name, Json::Value &layers, LayerConstructor *pLayerConstructor=nullptr);
 	DeepStack(const DeepStack& orig) = delete;
 	virtual ~DeepStack();
 	
diff --git a/source/MainComponent.cpp b/source/MainComponent.cpp
index 85b108d..629b248 100644
--- a/source/MainComponent.cpp
+++ b/source/MainComponent.cpp
@@ -587,7 +587,6 @@ void MainComponent::buttonClicked (Button* buttonThatWasClicked)
 			projectNameLabel->setText(m_file.getFileNameWithoutExtension(), NotificationType::dontSendNotification);
 			AStack *pStack = StackCreator::fromFile(m_file.getParentDirectory().getFullPathName().toStdString(), std::string(projectNameLabel->getText().getCharPointer()), this);
 			m_stack = reinterpret_cast<DeepStack*>(pStack);
-			//			m_stack->load(this);
 			m_stack->loadWeights(m_dir);
 			m_rbmSelect->clear(dontSendNotification);
 
diff --git a/source/RnnStack.cpp b/source/RnnStack.cpp
index 6bf4bdb..ffe7ac6 100644
--- a/source/RnnStack.cpp
+++ b/source/RnnStack.cpp
@@ -18,12 +18,6 @@ RnnStack::RnnStack(const std::string &name)
 {
 }
 
-RnnStack::RnnStack(const std::string &name, Json::Value& layers, LayerConstructor* pLayerConstructor)
-: AStack(StackType::Rnn, name, layers, pLayerConstructor)
-{
-
-}
-
 RnnStack::~RnnStack()
 {
 }
diff --git a/source/RnnStack.hpp b/source/RnnStack.hpp
index 6bdc7b5..61d26c0 100644
--- a/source/RnnStack.hpp
+++ b/source/RnnStack.hpp
@@ -20,7 +20,6 @@ class RnnStack : public AStack
 {
 public:
 	RnnStack(const std::string &name);
-	RnnStack(const std::string &name, Json::Value &layers, LayerConstructor *pLayerConstructor=nullptr);
 	RnnStack(const RnnStack& orig) = delete;
 	virtual ~RnnStack();
 
diff --git a/source/StackCreator.cpp b/source/StackCreator.cpp
index a23e2d9..cf04b57 100644
--- a/source/StackCreator.cpp
+++ b/source/StackCreator.cpp
@@ -35,18 +35,43 @@ AStack* StackCreator::fromJson(Json::Value& project, LayerConstructor *pLayerCon
 	Json::Value &layers = project["stack"]["layers"];
 	int type = stack["type"].asInt();
 			
-	if (type == AStack::StackType::Deep)
-	{
-		return new DeepStack(name, layers, pLayerConstructor);
-	}
-	
+	AStack *pStack = nullptr;
 	if (type == AStack::StackType::Rnn)
 	{
-		return new RnnStack(name, layers, pLayerConstructor);
+		pStack = new RnnStack(name);
+	}
+	else
+	{
+		pStack = new DeepStack(name);
 	}
 	
-	return new DeepStack(name, layers, pLayerConstructor);
-
+	for (int i=0; i < layers.size(); i++)
+	{
+		Json::Value &layer = layers[i];
+		
+		string layername = layer["name"].asString();
+		int numVisibleX = layer["numVisibleX"].asInt();
+		int numVisibleY = layer["numVisibleY"].asInt();
+		int numHidden = layer["numHidden"].asInt();
+		int numContext = layer["numContext"].asInt();
+		
+		Layer *pLayer = nullptr;
+		if (!pLayerConstructor)
+		{
+			pLayer = new Layer(layername, i, numVisibleX, numVisibleY, numHidden, numContext);
+		}
+		else
+		{
+			pLayer = pLayerConstructor->onConstruct(pStack, layername, i, numVisibleX, numVisibleY, numHidden, numContext);
+		}
+		
+		assert(pLayer != nullptr);
+		
+		pLayer->fromJson(layer["rbm"]);
+		pStack->addLayer(pLayer);
+	}
+	
+	return pStack;
 }
 
 AStack* StackCreator::fromFile(const std::string &dir, const std::string &name, LayerConstructor *pLayerConstructor)