diff --git a/EXE_MachMgr.cpp b/EXE_MachMgr.cpp
index 2f8ec30..4878da0 100644
--- a/EXE_MachMgr.cpp
+++ b/EXE_MachMgr.cpp
@@ -2650,22 +2650,22 @@ ExeGetCalcTipFromPositions( double dX, double dY, double dZ, double dAngA, doubl
 
 //-----------------------------------------------------------------------------
 bool
-ExeGetCalcToolDirFromAngles( double dAngA, double dAngB, Vector3d& vtDir)
+ExeGetCalcToolDirFromAngles( const DBLVECTOR& vAng, Vector3d& vtDir)
 {
    IMachMgr* pMachMgr = GetCurrMachMgr() ;
    VERIFY_MACHMGR( pMachMgr, false)
   // calcolo la direzione utensile dagli assi macchina
-   return pMachMgr->GetCalcToolDirFromAngles( dAngA, dAngB, vtDir) ;
+   return pMachMgr->GetCalcToolDirFromAngles( vAng, vtDir) ;
 }
 
 //-----------------------------------------------------------------------------
 bool
-ExeGetCalcAuxDirFromAngles( double dAngA, double dAngB, Vector3d& vtDir)
+ExeGetCalcAuxDirFromAngles( const DBLVECTOR& vAng, Vector3d& vtDir)
 {
    IMachMgr* pMachMgr = GetCurrMachMgr() ;
    VERIFY_MACHMGR( pMachMgr, false)
   // calcolo la direzione ausiliaria dagli assi macchina
-   return pMachMgr->GetCalcAuxDirFromAngles( dAngA, dAngB, vtDir) ;
+   return pMachMgr->GetCalcAuxDirFromAngles( vAng, vtDir) ;
 }
 
 //-----------------------------------------------------------------------------
diff --git a/EgtExecutor.rc b/EgtExecutor.rc
index 6bd4620..4819212 100644
Binary files a/EgtExecutor.rc and b/EgtExecutor.rc differ
diff --git a/LUA_MachMgr.cpp b/LUA_MachMgr.cpp
index 1d71867..fd8f234 100644
--- a/LUA_MachMgr.cpp
+++ b/LUA_MachMgr.cpp
@@ -2917,15 +2917,19 @@ LuaGetCalcTipFromPositions( lua_State* L)
 static int
 LuaGetCalcToolDirFromAngles( lua_State* L)
 {
-  // 2 parametri : dAngA, dAngB
-   double dAngA ;
-   LuaCheckParam( L, 1, dAngA)
-   double dAngB ;
-   LuaCheckParam( L, 2, dAngB)
+  // da 1 a 4 parametri : dAngA, dAngB, dAngC, dAngD
+   DBLVECTOR vAng ;
+   for ( int i = 1 ; i <= 4 ; ++ i) {
+      double dAng ;
+      if ( LuaGetParam( L, i, dAng))
+         vAng.emplace_back( dAng) ;
+      else
+         break ;
+   }
    LuaClearStack( L) ;
   // Calcolo la direzione utensile dagli angoli macchina
    Vector3d vtDir ;
-   bool bOk = ExeGetCalcToolDirFromAngles( dAngA, dAngB, vtDir) ;
+   bool bOk = ExeGetCalcToolDirFromAngles( vAng, vtDir) ;
   // restituisco il risultato
    if ( bOk)
       LuaSetParam( L, vtDir) ;
@@ -2938,15 +2942,19 @@ LuaGetCalcToolDirFromAngles( lua_State* L)
 static int
 LuaGetCalcAuxDirFromAngles( lua_State* L)
 {
-  // 2 parametri : dAngA, dAngB
-   double dAngA ;
-   LuaCheckParam( L, 1, dAngA)
-   double dAngB ;
-   LuaCheckParam( L, 2, dAngB)
+  // da 1 a 4 parametri : dAngA, dAngB, dAngC, dAngD
+   DBLVECTOR vAng ;
+   for ( int i = 1 ; i <= 4 ; ++ i) {
+      double dAng ;
+      if ( LuaGetParam( L, i, dAng))
+         vAng.emplace_back( dAng) ;
+      else
+         break ;
+   }
    LuaClearStack( L) ;
   // Calcolo la direzione ausiliaria dagli angoli macchina
    Vector3d vtDir ;
-   bool bOk = ExeGetCalcAuxDirFromAngles( dAngA, dAngB, vtDir) ;
+   bool bOk = ExeGetCalcAuxDirFromAngles( vAng, vtDir) ;
   // restituisco il risultato
    if ( bOk  &&  ! vtDir.IsSmall())
       LuaSetParam( L, vtDir) ;