diff --git a/EXE_MachMgr.cpp b/EXE_MachMgr.cpp
index 3b715d9..8b51b18 100644
--- a/EXE_MachMgr.cpp
+++ b/EXE_MachMgr.cpp
@@ -524,17 +524,38 @@ ExeAddRawPart( Point3d ptOrig, double dLength, double dWidth, double dHeight, Co
 
 //-----------------------------------------------------------------------------
 int
-ExeAddRawPartWithPart( int nPartId, int nCrvId, double dOverMat, Color cCol)
+ExeAddRawPartGen( int nCrvSrfId, double dOverMat, Color cCol)
 {
    IMachMgr* pMachMgr = GetCurrMachMgr() ;
    VERIFY_MACHMGR( pMachMgr, GDB_ID_NULL)
   // inserisco grezzo con pezzo nella macchinata corrente
-   int nId = pMachMgr->AddRawPartWithPart( nPartId, nCrvId, dOverMat, cCol) ;
+   int nId = pMachMgr->AddRawPart( nCrvSrfId, dOverMat, cCol) ;
+   ExeSetModified() ;
+  // se richiesto, salvo il comando Lua equivalente
+   if ( IsCmdLog()) {
+      string sLua = "EgtAddRawPartGen(" + ToString( nCrvSrfId) + "," +
+                                          ToString( dOverMat) + ",{" +
+                                          ToString( cCol) + "})" +
+                    " -- Id=" + ToString( nId) ;
+      LOG_INFO( GetCmdLogger(), sLua.c_str()) ;
+   }
+  // restituisco il risultato
+   return nId ;
+}
+
+//-----------------------------------------------------------------------------
+int
+ExeAddRawPartWithPart( int nPartId, int nCrvSrfId, double dOverMat, Color cCol)
+{
+   IMachMgr* pMachMgr = GetCurrMachMgr() ;
+   VERIFY_MACHMGR( pMachMgr, GDB_ID_NULL)
+  // inserisco grezzo con pezzo nella macchinata corrente
+   int nId = pMachMgr->AddRawPartWithPart( nPartId, nCrvSrfId, dOverMat, cCol) ;
    ExeSetModified() ;
   // se richiesto, salvo il comando Lua equivalente
    if ( IsCmdLog()) {
       string sLua = "EgtAddRawPartWithPart(" + ToString( nPartId) + "," +
-                                               ToString( nCrvId) + "," +
+                                               ToString( nCrvSrfId) + "," +
                                                ToString( dOverMat) + ",{" +
                                                ToString( cCol) + "})" +
                     " -- Id=" + ToString( nId) ;
diff --git a/LUA_MachMgr.cpp b/LUA_MachMgr.cpp
index 3a80290..1c5f4eb 100644
--- a/LUA_MachMgr.cpp
+++ b/LUA_MachMgr.cpp
@@ -504,6 +504,7 @@ LuaGetNextRawPart( lua_State* L)
       LuaSetParam( L) ;
    return 1 ;
 }
+
 //-------------------------------------------------------------------------------
 static int
 LuaAddRawPart( lua_State* L)
@@ -530,6 +531,28 @@ LuaAddRawPart( lua_State* L)
    return 1 ;
 }
 
+//-------------------------------------------------------------------------------
+static int
+LuaAddRawPartGen( lua_State* L)
+{
+  // 3 parametri : nCrvSrfId, dOverMat, Color
+   int nCrvSrfId ;
+   LuaCheckParam( L, 1, nCrvSrfId)
+   double dOverMat ;
+   LuaCheckParam( L, 2, dOverMat)
+   Color cCol ;
+   LuaCheckParam( L, 3, cCol)
+   LuaClearStack( L) ;
+  // inserisco il grezzo nella macchinata corrente
+   int nInd = ExeAddRawPartGen( nCrvSrfId, dOverMat, cCol) ;
+  // restituisco il risultato
+   if ( nInd != GDB_ID_NULL)
+      LuaSetParam( L, nInd) ;
+   else
+      LuaSetParam( L) ;
+   return 1 ;
+}
+
 //-------------------------------------------------------------------------------
 static int
 LuaAddRawPartWithPart( lua_State* L)
@@ -4584,6 +4607,7 @@ LuaInstallMachMgr( LuaMgr& luaMgr)
    bOk = bOk && luaMgr.RegisterFunction( "EgtGetFirstRawPart", LuaGetFirstRawPart) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtGetNextRawPart", LuaGetNextRawPart) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtAddRawPart", LuaAddRawPart) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtAddRawPartGen", LuaAddRawPartGen) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtAddRawPartWithPart", LuaAddRawPartWithPart) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtModifyRawPart", LuaModifyRawPart) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtModifyRawPartSize", LuaModifyRawPartSize) ;