diff --git a/MachineCalc.cpp b/MachineCalc.cpp
index 517f93f..11fb8c3 100644
--- a/MachineCalc.cpp
+++ b/MachineCalc.cpp
@@ -325,14 +325,18 @@ Machine::CalculateKinematicChain( void)
          swap( m_vCalcLinAx[0], m_vCalcLinAx[1]) ;
       else if ( m_vCalcLinAx[2].vtDir.IsXplus())
          swap( m_vCalcLinAx[0], m_vCalcLinAx[2]) ;
-      else
+      else {
+         LOG_INFO( GetEMkLogger(), "Linear Axes not aligned with Global XYZ")
          return false ;
+      }
    }
    if ( ! m_vCalcLinAx[1].vtDir.IsYplus()) {
       if ( m_vCalcLinAx[2].vtDir.IsYplus())
          swap( m_vCalcLinAx[1], m_vCalcLinAx[2]) ;
-      else
+      else {
+         LOG_INFO( GetEMkLogger(), "Linear Axes not aligned with Global XYZ")
          return false ;
+      }
    }
   // verifiche sugli assi rotanti :
    // se 0 o 1 va bene
@@ -370,6 +374,7 @@ Machine::CalculateKinematicChain( void)
    }
 
    // altrimenti non ancora gestito, quindi errore
+   LOG_INFO( GetEMkLogger(), "Rotary Axes not manageable")
    return false ;
 }