diff --git a/VolZmapVolume.cpp b/VolZmapVolume.cpp
index c2cf8bb..3a9d1d2 100644
--- a/VolZmapVolume.cpp
+++ b/VolZmapVolume.cpp
@@ -1432,18 +1432,15 @@ IntersLineBezierSurfSet( const Point3d& ptLineStart, const Vector3d& vtLineDir,
       else 
          bCalcInters = bbox.SqDistFromPointXY( r) < EPS_ZERO ;
 
-      if( dMax > EPS_ZERO) {
-         bool bBetter = int( vIntBoxBox.size()) == 0  &&  bbox.SqDistFromPointXY( r) < EPS_ZERO ;
-         if( bBetter)
-            int a = 0 ;
-      }
       // verifico che lo spillone faccia interferenza con il box della superficie
       if ( bCalcInters  &&  dMax > - EPS_ZERO) {
+         // debug
          ++nIntersCalc ;
-         string sOut = " actual inters calc " + ToString(nIntersCalc) + " Griglia" + ToString(nGrid); // debug
-         if( nGrid != 1)
-            sOut += " toolZ: " + ToString( vtN.z, 3) ;
+         string sOut = " actual inters calc " + ToString(nIntersCalc) + " Griglia" + ToString(nGrid) + " toolZ: " + ToString( vtN.z, 3); 
+         if( dMax < EPS_SMALL)
+            sOut += " --additional calc" ;
          LOG_INFO( GetEGkLogger(), sOut.c_str())
+            //debug
             
 
          // se la linea è parallela all'asse X o Y allora ruoto tutto di 45 gradi rispetto a Z
@@ -2223,6 +2220,10 @@ VolZmap::Comp_5AxisMilling( int nGrid, const PNTVECTOR& ptS, const PNTVECTOR& pt
    bool bForward = true ;
    bool bAllSameType = false ;
    vector<IntervalsToSubtract> vIntervalsToSubtr ;
+   //Pi=(,269.846416,156.847955) Vi=(0,0.734659842,0.678435639) Pf=(393.205017,268.283822,158.533523) Vf=(0,0.72787881,0.685705795) Af=(-1,0,0)
+   if( abs(ptS[0].x - 393.205017) < EPS_SMALL  &&  abs(ptS[0].y - 269.846416) < EPS_SMALL && abs(ptS[0].z - 156.847955) < EPS_SMALL)
+      int a = 0 ;
+
    for ( int i = nStartI ; i <= nEndI ; ++ i) {
       nLastForwardJ = -1 ;
       j = nStartJ ;