diff --git a/3d-viewer/3d_cache/dialogs/panel_prev_model.cpp b/3d-viewer/3d_cache/dialogs/panel_prev_model.cpp
index ec483e982d..4333d2efae 100644
--- a/3d-viewer/3d_cache/dialogs/panel_prev_model.cpp
+++ b/3d-viewer/3d_cache/dialogs/panel_prev_model.cpp
@@ -123,9 +123,7 @@ PANEL_PREV_3D::PANEL_PREV_3D( wxWindow* aParent, S3D_CACHE* aCacheManager ) :
     zoff = NULL;
 
     wxBoxSizer* mainBox = new wxBoxSizer( wxVERTICAL );
-
-    wxStaticBoxSizer* vbox = new wxStaticBoxSizer( wxVERTICAL, this, _( "3D Model Orientation" ) );
-
+    wxStaticBoxSizer* vbox = new wxStaticBoxSizer( wxVERTICAL, this, _( "3D Preview" ) );
     m_FileTree = NULL;
 
     if( NULL != aParent )
diff --git a/3d-viewer/common_ogl/cogl_att_list.cpp b/3d-viewer/common_ogl/cogl_att_list.cpp
index abae8ffe35..4254e0aae3 100644
--- a/3d-viewer/common_ogl/cogl_att_list.cpp
+++ b/3d-viewer/common_ogl/cogl_att_list.cpp
@@ -56,7 +56,8 @@ const int COGL_ATT_LIST::m_openGL_AttributesList[] = {
 
 
 int COGL_ATT_LIST::m_openGL_AttributesList_toUse[
-                      sizeof( COGL_ATT_LIST::m_openGL_AttributesList )] = { 0 };
+    sizeof( COGL_ATT_LIST::m_openGL_AttributesList ) /
+    sizeof( COGL_ATT_LIST::m_openGL_AttributesList[0] ) ] = { 0 };
 
 
 const int *COGL_ATT_LIST::GetAttributesList( bool aUseAntiAliasing )
diff --git a/include/plugins/3d/3d_plugin.h b/include/plugins/3d/3d_plugin.h
index 60f0f99661..935dc79a33 100644
--- a/include/plugins/3d/3d_plugin.h
+++ b/include/plugins/3d/3d_plugin.h
@@ -43,7 +43,7 @@
 #define REVISION 0
 #define PATCH 0
 
-#include "../kicad_plugin.h"
+#include "plugins/kicad_plugin.h"
 
 
 KICAD_PLUGIN_EXPORT char const* GetKicadPluginClass( void )
diff --git a/include/plugins/3dapi/ifsg_colors.h b/include/plugins/3dapi/ifsg_colors.h
index dd24af9560..e93b3cb627 100644
--- a/include/plugins/3dapi/ifsg_colors.h
+++ b/include/plugins/3dapi/ifsg_colors.h
@@ -35,7 +35,7 @@
 
 
 /**
- * Class IFSG_INDEX
+ * Class IFSG_COLORS
  * is the wrapper for SGCOLORS
  */
 class SGLIB_API IFSG_COLORS : public IFSG_NODE
diff --git a/include/plugins/3dapi/ifsg_coords.h b/include/plugins/3dapi/ifsg_coords.h
index 8eba8df502..428681f82a 100644
--- a/include/plugins/3dapi/ifsg_coords.h
+++ b/include/plugins/3dapi/ifsg_coords.h
@@ -34,7 +34,7 @@
 
 
 /**
- * Class IFSG_INDEX
+ * Class IFSG_COORDS
  * is the wrapper for SGCOORDS
  */
 class SGLIB_API IFSG_COORDS : public IFSG_NODE
diff --git a/include/plugins/3dapi/ifsg_node.h b/include/plugins/3dapi/ifsg_node.h
index 30847ea4cd..6b3641ee2a 100644
--- a/include/plugins/3dapi/ifsg_node.h
+++ b/include/plugins/3dapi/ifsg_node.h
@@ -53,14 +53,6 @@ class SGNODE;
  */
 class SGLIB_API IFSG_NODE
 {
-private:
-    // hide the copy constructors and assignment operator to avoid accidental misuse
-    IFSG_NODE( const IFSG_NODE& aParent );
-    IFSG_NODE( IFSG_NODE& aParent );
-    IFSG_NODE( volatile const IFSG_NODE& aParent );
-    IFSG_NODE( volatile IFSG_NODE& aParent );
-    IFSG_NODE& operator= ( const IFSG_NODE& );
-
 protected:
     SGNODE* m_node;
 
@@ -68,6 +60,13 @@ public:
     IFSG_NODE();
     virtual ~IFSG_NODE();
 
+    // deleted operators
+    IFSG_NODE( const IFSG_NODE& aParent ) = delete;
+    IFSG_NODE( IFSG_NODE& aParent ) = delete;
+    IFSG_NODE( volatile const IFSG_NODE& aParent ) = delete;
+    IFSG_NODE( volatile IFSG_NODE& aParent ) = delete;
+    IFSG_NODE& operator= ( const IFSG_NODE& ) = delete;
+
     /**
      * Function Destroy
      * deletes the object held by this wrapper