diff --git a/EgtMachKernel.rc b/EgtMachKernel.rc
index d266acd..73bec79 100644
Binary files a/EgtMachKernel.rc and b/EgtMachKernel.rc differ
diff --git a/Mortising.cpp b/Mortising.cpp
index 98b9a89..1b231a8 100644
--- a/Mortising.cpp
+++ b/Mortising.cpp
@@ -1481,6 +1481,9 @@ Mortising::GenerateMortisingCl( const ICurveComposite* pCompo, const Vector3d& v
    Point3d ptLi = ptStart + vtTool * dDelta ;
    bool bUnderStart = GetPointUnderRaw( ptLi, vtTool, 0,
                                         GetRadiusForStartEndElevation(), m_TParams.m_dLen, false, dSafeZ, dStartElev) ;
+  // altrimenti ridetermino elevazione su inizio percorso di lavoro
+   if ( ! bUnderStart)
+      GetElevation( m_nPhase, ptLi, vtTool, GetRadiusForStartEndElevation(), vtTool, dStartElev) ;
 
   // 1 -> punto approccio
    SetFlag( 1) ;
@@ -1562,6 +1565,9 @@ Mortising::GenerateMortisingCl( const ICurveComposite* pCompo, const Vector3d& v
    Point3d ptLo = ptLast + vtTool * dDelta ;
    bool bUnderEnd = GetPointUnderRaw( ptLo, vtTool, 0,
                                       GetRadiusForStartEndElevation(), m_TParams.m_dLen, false, dSafeZ, dEndElev) ;
+  // altrimenti ridetermino elevazione su fine percorso di lavoro
+   if ( ! bUnderEnd)
+      GetElevation( m_nPhase, ptLo, vtTool, GetRadiusForStartEndElevation(), vtTool, dEndElev) ;
 
   // 6 -> ritorno all'approccio
    SetFeed( GetEndFeed()) ;