diff --git a/Axis.cpp b/Axis.cpp
index baafff8..ef9a9c9 100644
--- a/Axis.cpp
+++ b/Axis.cpp
@@ -50,6 +50,7 @@ Axis::Clone( void) const
             pAx->m_bInvert = m_bInvert ;
             pAx->m_dOffset = m_dOffset ;
             pAx->m_nType = m_nType ;
+            pAx->m_nUse = m_nUse ;
             pAx->m_ptPos = m_ptPos ;
             pAx->m_vtDir = m_vtDir ;
             pAx->m_Stroke = m_Stroke ;
@@ -74,6 +75,7 @@ Axis::Dump( string& sOut, bool bMM, const char* szNewLine) const
    sOut += "Name=" + m_sName + szNewLine ;
    sOut += "Token=" + m_sToken + szNewLine ;
    sOut += "Type=" + ToString( m_nType) + szNewLine ;
+   sOut += "Use=" + ToString( m_nUse) + szNewLine ;
    sOut += "Pos=" + ToString( GetInUiUnits( m_ptPos, bMM), 4) + szNewLine ;
    sOut += "Dir=" + ToString( m_vtDir) + szNewLine ;
    if ( m_nType == MCH_AT_LINEAR)
@@ -113,20 +115,21 @@ Axis::GetGeomDB( void) const
 //----------------------------------------------------------------------------
 Axis::Axis( void)
    : m_nOwnerId( GDB_ID_NULL), m_pGeomDB( nullptr), m_bInvert( false), m_dOffset( 0),
-     m_nType( MCH_AT_NONE), m_Stroke( {{0,0}}), m_dHomeVal( 0), m_dCurrVal( 0)
+     m_nType( MCH_AT_NONE), m_nUse( MCH_AU_NONE), m_Stroke( {{0,0}}), m_dHomeVal( 0), m_dCurrVal( 0)
 {
 }
 
 //----------------------------------------------------------------------------
 bool
 Axis::Set( const string& sName, const string& sToken, bool bInvert, double dOffset,
-           int nType, const Point3d& ptPos, const Vector3d& vtDir, const STROKE& Stroke, double dHome)
+           int nType, int nUse, const Point3d& ptPos, const Vector3d& vtDir, const STROKE& Stroke, double dHome)
 {
    m_sName = sName ;
    m_sToken = sToken ;
    m_bInvert = bInvert ;
    m_dOffset = dOffset ;
-   m_nType = nType ;
+   m_nType = ( nType == MCH_AT_ROTARY ? MCH_AT_ROTARY : MCH_AT_LINEAR) ;
+   m_nUse = (( nUse == MCH_AU_DISPOSITION  ||  nUse == MCH_AU_AUXILIAR) ? nUse : MCH_AU_GENERAL) ;
    m_ptPos = ptPos ;
    m_vtDir = vtDir ;
    m_Stroke = Stroke ;
diff --git a/Axis.h b/Axis.h
index 6c22f9c..d7c7660 100644
--- a/Axis.h
+++ b/Axis.h
@@ -1,13 +1,13 @@
 //----------------------------------------------------------------------------
-//  EgalTech 2015-2022
+//  EgalTech 2015-2025
 //----------------------------------------------------------------------------
-// File : Axis.h           Data : 21.09.22          Versione : 2.4i
+// File : Axis.h           Data : 17.04.25          Versione : 2.7d2
 // Contenuto : Dichiarazione della classe Axis.
 //
 //
 //
 // Modifiche : 24.05.15 DS Creazione modulo.
-//
+//             17.04.25 DS Aggiunto campo Use.
 //
 //----------------------------------------------------------------------------
 
@@ -31,7 +31,7 @@ class Axis : public IUserObj
    public :
       Axis( void) ;
       bool Set( const std::string& sName, const std::string& sToken, bool bInvert, double dOffset,
-                int nType, const Point3d& ptPos, const Vector3d& vtDir, const STROKE& Stroke, double dHome) ;
+                int nType, int nUse, const Point3d& ptPos, const Vector3d& vtDir, const STROKE& Stroke, double dHome) ;
       bool Modify( const Point3d& ptPos, double dAxisMaxAdjust) ;
       bool Modify( const Vector3d& vtDir, double dAxisMaxRotAdj) ;
       bool Modify( const STROKE& Stroke) ;
@@ -48,6 +48,8 @@ class Axis : public IUserObj
               { return m_dOffset ; }
       int  GetType( void) const
               { return m_nType ; }
+      int  GetUse( void) const
+              { return m_nUse ; }
       const Point3d& GetPos( void) const
               { return m_ptPos ; }
       const Vector3d& GetDir( void) const
@@ -67,6 +69,7 @@ class Axis : public IUserObj
       bool        m_bInvert ;
       double      m_dOffset ;
       int         m_nType ;
+      int         m_nUse ;
       Point3d     m_ptPos ;
       Vector3d    m_vtDir ;
       STROKE      m_Stroke ;
diff --git a/Machine.cpp b/Machine.cpp
index c767e6c..8552db3 100644
--- a/Machine.cpp
+++ b/Machine.cpp
@@ -295,8 +295,8 @@ Machine::AdjustTable( int nLay, const Point3d& ptRef1)
 //----------------------------------------------------------------------------
 bool
 Machine::LoadMachineAxis( const string& sName, const string& sParent, const string& sToken, bool bInvert,
-                          double dOffset, int nType, const Point3d& ptPos, const Vector3d& vtDir, const STROKE& Stroke,
-                          double dHome, bool bAdjustAux, const string& sGeo, const STRVECTOR& vsAux)
+                          double dOffset, int nType, int nUse, const Point3d& ptPos, const Vector3d& vtDir,
+                          const STROKE& Stroke, double dHome, bool bAdjustAux, const string& sGeo, const STRVECTOR& vsAux)
 {
   // verifico sia di tipo ammesso
    if ( nType != MCH_AT_LINEAR  &&  nType != MCH_AT_ROTARY) {
@@ -336,7 +336,7 @@ Machine::LoadMachineAxis( const string& sName, const string& sParent, const stri
    Axis* pAxis = new(nothrow) Axis ;
    if ( pAxis == nullptr)
       return false ;
-   pAxis->Set( sName, sToken, bInvert, dOffset, nType, ptPos, vtDir, Stroke, dHome) ;
+   pAxis->Set( sName, sToken, bInvert, dOffset, nType, nUse, ptPos, vtDir, Stroke, dHome) ;
    m_pGeomDB->SetUserObj( nLay, pAxis) ;
   // verifico il vettore rappresentativo dell'asse
    if ( ! AdjustAxis( nLay, sPart, sName, nType, ptPos, vtDir, bAdjustAux))
diff --git a/Machine.h b/Machine.h
index 963d0be..378942f 100644
--- a/Machine.h
+++ b/Machine.h
@@ -228,8 +228,8 @@ class Machine
                              const STRVECTOR& vsColl, const std::string& sGeo, const STRVECTOR& vsAux) ;
       bool AdjustTable( int nLay, const Point3d& ptRef1) ;
       bool LoadMachineAxis( const std::string& sName, const std::string& sParent, const std::string& sToken, bool bInvert,
-                            double dOffset, int nType, const Point3d& ptPos, const Vector3d& vtDir, const STROKE& Stroke,
-                            double dHome, bool bAdjustAux, const std::string& sGeo, const STRVECTOR& vsAux) ;
+                            double dOffset, int nType, int nUse, const Point3d& ptPos, const Vector3d& vtDir,
+                            const STROKE& Stroke, double dHome, bool bAdjustAux, const std::string& sGeo, const STRVECTOR& vsAux) ;
       bool AdjustAxis( int nLay, const std::string& sPart, const std::string& sName,
                        int nType, const Point3d& ptPos, const Vector3d& vtDir, bool bAdjustAux) ;
       bool ModifyMachineAxisPosition( const std::string& sName, const Point3d& ptPos) ;
diff --git a/MachineAxes.cpp b/MachineAxes.cpp
index 299dee6..6ff6aa8 100644
--- a/MachineAxes.cpp
+++ b/MachineAxes.cpp
@@ -266,6 +266,14 @@ Machine::GetAxisHomePos( const string& sAxis, double& dHomeVal) const
 bool
 Machine::IsDispositionAxis( int nAxisId, int nTableId) const
 {
+  // se non dichiarato o ausiliario
+   const Axis* pAx = GetAxis( nAxisId) ;
+   if ( pAx == nullptr  ||  pAx->GetUse() == MCH_AU_AUXILIAR)
+      return false ;
+  // se dichiarato di disposizione
+   if ( pAx->GetUse() == MCH_AU_DISPOSITION)
+      return true ;
+  // altrimenti è di tipo generale e va bene solo se dipende direttamente o indirettamente dalla tavola
   // se direttamente dipendente dalla tavola
    int nParentId = m_pGeomDB->GetParentId( nAxisId) ;
    if ( ( nTableId != GDB_ID_NULL  &&  nParentId == nTableId)  ||  IsTableGroup( nParentId))
diff --git a/MachineLua.cpp b/MachineLua.cpp
index 3886d58..ce09098 100644
--- a/MachineLua.cpp
+++ b/MachineLua.cpp
@@ -45,6 +45,7 @@ static const string FLD_GEO = "Geo" ;
 static const string FLD_AUX = "Aux" ;
 static const string FLD_TOKEN = "Token" ;
 static const string FLD_TYPE = "Type" ;
+static const string FLD_USE = "Use" ;
 static const string FLD_INVERT = "Invert" ;
 static const string FLD_AXIS_OFFSET = "Offset" ;
 static const string FLD_REF1 = "Ref1" ;
@@ -536,6 +537,9 @@ Machine::LuaEmtAxis( lua_State* L)
   // lettura campo 'Type' dalla tabella
    int nType ;
    LuaCheckTabFieldParam( L, 1, FLD_TYPE, nType)
+  // lettura eventuale campo 'Use' della tabella (default General)
+   int nUse = MCH_AU_GENERAL ;
+   LuaGetTabFieldParam( L, 1, FLD_USE, nUse) ;
   // lettura campo 'Pos' dalla tabella
    Point3d ptPos ;
    LuaCheckTabFieldParam( L, 1, FLD_POS, ptPos)
@@ -569,7 +573,7 @@ Machine::LuaEmtAxis( lua_State* L)
 
   // carico i dati dell'asse
    if ( ! m_pMchLua->LoadMachineAxis( sName, sParent, sToken, bInvert, dOffset,
-                                      nType, ptPos, vtDir, Stroke, dHome, bAdjustAux, sGeo, vsAux))
+                                      nType, nUse, ptPos, vtDir, Stroke, dHome, bAdjustAux, sGeo, vsAux))
       return luaL_error( L, " Load Machine Axis failed") ;
 
   // restituisco l'indice dell'asse
diff --git a/MachineStruConst.h b/MachineStruConst.h
index 236402c..133748b 100644
--- a/MachineStruConst.h
+++ b/MachineStruConst.h
@@ -81,6 +81,13 @@ enum MchAxisType { MCH_AT_NONE = 0,
                    MCH_AT_LINEAR = 1,
                    MCH_AT_ROTARY = 2} ;
 
+//----------------------------------------------------------------------------
+// Uso di assi della macchina
+enum MchAxisUse { MCH_AU_NONE = 0,
+                  MCH_AU_GENERAL = 1,
+                  MCH_AU_DISPOSITION = 2,
+                  MCH_AU_AUXILIAR = 3} ;
+
 //----------------------------------------------------------------------------
 // Tipo di testa della macchina
 enum MchHeadType { MCH_HT_NONE = 0,