diff --git a/EgtGeomKernel.rc b/EgtGeomKernel.rc
index 00e3f09..9298822 100644
Binary files a/EgtGeomKernel.rc and b/EgtGeomKernel.rc differ
diff --git a/VolZmapVolume.cpp b/VolZmapVolume.cpp
index 20e3680..df6681a 100644
--- a/VolZmapVolume.cpp
+++ b/VolZmapVolume.cpp
@@ -55,13 +55,13 @@ VolZmap::SubtractIntervals( int nGrid, int nI, int nJ,
    }
 
   // Riporto le coordinate cicliche delle normali nell'ordine di partenza (da griglia a sistema intrinseco)
-   if ( !bSkipSwap  &&  nGrid == 1) {
+   if ( ! bSkipSwap  &&  nGrid == 1) {
       swap( vtNmi.x, vtNmi.z) ;
       swap( vtNmi.y, vtNmi.z) ;
       swap( vtNma.x, vtNma.z) ;
       swap( vtNma.y, vtNma.z) ;
    }
-   else if ( !bSkipSwap  &&  nGrid == 2) {
+   else if ( ! bSkipSwap  &&  nGrid == 2) {
       swap( vtNmi.y, vtNmi.z) ;
       swap( vtNmi.x, vtNmi.z) ;
       swap( vtNma.y, vtNma.z) ;
@@ -4544,11 +4544,25 @@ VolZmap::CompCyl_Milling( int nGrid, const Point3d& ptS, const Point3d& ptE,
    double dLongLen = vtMoveLong.Len() ;
    double dOrtLen = vtMoveOrt.Len() ;
 
+   int nSkip = 0 ;
+
    for ( int i = nStartI ; i <= nEndI ; ++ i) {
       for ( int j = nStartJ ; j <= nEndJ ; ++ j) {
       
          Point3d ptC( ( i + 0.5) * m_dStep, ( j + 0.5) * m_dStep, 0) ;
-            
+
+        // salto il controllo degli spilloni sotto il piano limite in basso o sopra il piano limite in alto
+         if ( ( ptC - ptITip) * vtToolDir < -EPS_SMALL  &&
+              ( ptC + Z_AX * m_dMaxZ[nGrid] - ptITip) * vtToolDir < -EPS_SMALL) {
+            ++ nSkip ;
+            continue ;
+         }
+         if ( ( ptC - ptI - vtMoveLong) * vtToolDir > EPS_SMALL &&
+              ( ptC + Z_AX * m_dMaxZ[nGrid] - ptI - vtMoveLong) * vtToolDir > EPS_SMALL) {
+            ++ nSkip ;
+            continue ;
+         }
+
          Point3d ptInt1, ptInt2 ;
          Vector3d vtN1, vtN2 ;
 
@@ -4592,6 +4606,10 @@ VolZmap::CompCyl_Milling( int nGrid, const Point3d& ptS, const Point3d& ptE,
          }
       }
    }
+   
+   //string sLog = "Skipped dexel = " + ToString( nSkip) + " / " + ToString( ( nEndI - nStartI + 1) * ( nEndJ - nStartJ + 1)) ;
+   //LOG_DBG_INFO( GetEGkLogger(), sLog.c_str())
+
    return true ;
 }