diff --git a/EXE_GdbGetPocketing.cpp b/EXE_GdbGetPocketing.cpp
index 74f9642..87cf099 100644
--- a/EXE_GdbGetPocketing.cpp
+++ b/EXE_GdbGetPocketing.cpp
@@ -59,7 +59,7 @@ ExePocketing( const int nId, double dRad, double dStep, double dAngle, int nType
 
   // eseguo Pocketing
    ICRVCOMPOPOVECTOR vCrvCompoRes ;
-   bool bOk = CalcPocketing( pSfr, dRad, 0, dStep, dAngle, nType, bSmooth, vCrvCompoRes) ;
+   bool bOk = CalcPocketing( pSfr, dRad, 0, dStep, dAngle, nType, bSmooth, nullptr, vCrvCompoRes) ;
    nFirstId = GDB_ID_NULL ;
    nCrvCount = int( vCrvCompoRes.size()) ;
    if ( bOk  &&  nCrvCount > 0) {
diff --git a/EXE_GdbGetSurf.cpp b/EXE_GdbGetSurf.cpp
index b968c6c..9c4a813 100644
--- a/EXE_GdbGetSurf.cpp
+++ b/EXE_GdbGetSurf.cpp
@@ -986,6 +986,8 @@ MyGetSurfTmParSilhouettes( const INTVECTOR& vIds, const Point3d& ptOn, const Vec
          PtrOwner<ICurveComposite> pCrvCompo( CreateCurveComposite()) ;
          if ( ! pCrvCompo->FromPolyLine( vPL[i]))
             return GDB_ID_NULL ;
+        // assegno direzione di estrusione
+         pCrvCompo->SetExtrusion( vtNL) ;
         // la porto nel riferimento destinazione
          pCrvCompo->LocToLoc( frSurf, frDest) ;
         // la inserisco nel DB geometrico
diff --git a/EXE_GdbModifySurf.cpp b/EXE_GdbModifySurf.cpp
index 41265a3..4e4d3cf 100644
--- a/EXE_GdbModifySurf.cpp
+++ b/EXE_GdbModifySurf.cpp
@@ -102,6 +102,33 @@ MyExplodeSurfTriMesh( int nId, int& nCount)
      // restituisco risultati
       return nFirstId ;
    }
+  // recupero il numero di gusci
+   int nShells = pStm->GetShellCount() ;
+  // se ci sono più gusci, separo questi
+   if ( nShells > 1) {
+      int nFirstId = GDB_ID_NULL ;
+      nCount = 0 ;
+      for ( int i = 0 ; i < nShells ; ++ i) {
+         ISurfTriMesh* pFac = pStm->CloneShell( i) ;
+         if ( pFac == nullptr)
+            continue ;
+        // inserisco la superficie nello stesso gruppo e nello stesso posto del GeomDB
+         int nNewId = pGeomDB->InsertGeoObj( GDB_ID_NULL, nId, GDB_BEFORE, pFac) ;
+         if ( nNewId == GDB_ID_NULL)
+            return GDB_ID_NULL ;
+        // copio gli attributi
+        if ( ! pGeomDB->CopyAttributes( nId, nNewId))
+            return GDB_ID_NULL ;
+        // aggiorno contatori
+         if ( nFirstId == GDB_ID_NULL)
+            nFirstId = nNewId ;
+         ++ nCount ;
+      }
+     // elimino la superficie originale
+      pGeomDB->Erase( nId) ;
+     // restituisco risultati
+      return nFirstId ;
+   }
   // recupero il numero di facce
    int nFacets = pStm->GetFacetCount() ;
   // se ci sono più facce, separo queste
diff --git a/EXE_MachMgr.cpp b/EXE_MachMgr.cpp
index 1a2c6cf..febf6b1 100644
--- a/EXE_MachMgr.cpp
+++ b/EXE_MachMgr.cpp
@@ -21,9 +21,11 @@
 #include "/EgtDev/Include/EXeExecutor.h"
 #include "/EgtDev/Include/EXeConst.h"
 #include "/EgtDev/Include/EGkStringUtils3d.h"
+#include "/EgtDev/Include/EMkToolConst.h"
 #include "/EgtDev/Include/EMkOperationConst.h"
 #include "/EgtDev/Include/EMkSimuGenConst.h"
 #include "/EgtDev/Include/EGnFileUtils.h"
+#include "/EgtDev/Include/EGnEgtUUID.h"
 #include "/EgtDev/Include/EgtStringConverter.h"
 #include "/EgtDev/Include/EgtPointerOwner.h"
 
@@ -1472,6 +1474,21 @@ ExeTdbGetCurrToolThLength( double& dThLen)
    return pMachMgr->TdbGetCurrToolThLength( dThLen) ;
 }
 
+//-----------------------------------------------------------------------------
+bool
+ExeTdbCurrToolIsStandardDraw( bool& bStandard)
+{
+   IMachMgr* pMachMgr = GetCurrMachMgr() ;
+   VERIFY_MACHMGR( pMachMgr, false)
+  // recupero il nome del disegno dell'utensile
+   string sDraw ;
+   if ( ! pMachMgr->TdbGetCurrToolParam( TPA_DRAW, sDraw))
+      return false ;
+  // verifico il tipo
+   bStandard = IsUUID( GetFileTitleEgt( sDraw)) ;
+   return true ;
+}
+
 //-----------------------------------------------------------------------------
 int
 ExeTdbCurrToolDraw( int nGenCtx, int nToolCtx)
diff --git a/EgtExecutor.rc b/EgtExecutor.rc
index 0968823..c44c7be 100644
Binary files a/EgtExecutor.rc and b/EgtExecutor.rc differ
diff --git a/LUA_MachMgr.cpp b/LUA_MachMgr.cpp
index 6091b1a..ea3db56 100644
--- a/LUA_MachMgr.cpp
+++ b/LUA_MachMgr.cpp
@@ -1629,6 +1629,22 @@ LuaTdbGetCurrToolThLength( lua_State* L)
    return 1 ;
 }
 
+//-------------------------------------------------------------------------------
+static int
+LuaTdbIsCurrToolStandardDraw( lua_State* L)
+{
+  // nessun parametro
+   LuaClearStack( L) ;
+  // recupero lo stato
+   bool bStandard ;
+   bool bOk = ExeTdbCurrToolIsStandardDraw( bStandard) ;
+   if ( bOk)
+      LuaSetParam( L, bStandard) ;
+   else
+      LuaSetParam( L) ;
+   return 1 ;
+}
+
 //-------------------------------------------------------------------------------
 static int
 LuaTdbGetCurrToolDraw( lua_State* L)
@@ -4214,6 +4230,7 @@ LuaInstallMachMgr( LuaMgr& luaMgr)
    bOk = bOk && luaMgr.RegisterFunction( "EgtTdbGetCurrToolMaxDepth", LuaTdbGetCurrToolMaxDepth) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtTdbGetCurrToolThDiam", LuaTdbGetCurrToolThDiam) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtTdbGetCurrToolThLength", LuaTdbGetCurrToolThLength) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtTdbIsCurrToolStandardDraw", LuaTdbIsCurrToolStandardDraw) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtTdbGetCurrToolDraw", LuaTdbGetCurrToolDraw) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtTdbReload", LuaTdbReload) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtTdbSave", LuaTdbSave) ;