diff --git a/EgtGeomKernel.rc b/EgtGeomKernel.rc
index fa9b849..1df8e39 100644
Binary files a/EgtGeomKernel.rc and b/EgtGeomKernel.rc differ
diff --git a/VolZmapVolume.cpp b/VolZmapVolume.cpp
index 51867ce..fd78d24 100644
--- a/VolZmapVolume.cpp
+++ b/VolZmapVolume.cpp
@@ -874,6 +874,7 @@ VolZmap::MillingStep( int nCurrTool,
    bool bOk ;
    if ( AreSameVectorApprox( vtDLs, vtDLe))
       bOk = MillingTranslationStep( ptPLs, ptPLe, vtDLs, vtALs) ;
+  // altrimenti anche rotazione
    else
       bOk = MillingGeneralMotionStep( ptPLs, vtDLs, vtALs, ptPLe, vtDLe, vtALe) ;
 
@@ -886,15 +887,36 @@ VolZmap::MillingStep( int nCurrTool,
    return bOk ;
 }
 
+//----------------------------------------------------------------------------
+static bool
+GetAlongAcrossRotation( const Vector3d& vtDir1, const Vector3d& vtDir2, const Vector3d& vtRef,
+                        double& dAlongAngDeg, double& dAcrossAngDeg)
+{
+   Vector3d vtAxis = vtRef ;
+   if ( vtAxis.Normalize()) {
+      bool bDet ; vtDir1.GetRotation( vtDir2, vtAxis, dAcrossAngDeg, bDet) ;
+      Vector3d vtDirM = GetRotate( vtDir1, vtAxis, dAcrossAngDeg) ;
+      vtDirM.GetAngle( vtDir2, dAlongAngDeg) ;
+   }
+   else {
+      vtDir1.GetAngle( vtDir2, dAlongAngDeg) ;
+      dAcrossAngDeg = 0 ;
+   }
+   return true ;
+}
+
 //----------------------------------------------------------------------------
 bool
 VolZmap::MillingGeneralMotionStep( const Point3d& ptPs, const Vector3d& vtDs, const Vector3d& vtAs,
                                    const Point3d& ptPe, const Vector3d& vtDe, const Vector3d& vtAe)
 {
+  // Calcolo angoli di rotazione utensile longitudinale e trasversale rispetto al movimento
+   double dAlongAngDeg, dAcrossAngDeg ;
+   GetAlongAcrossRotation( vtDs, vtDe, ptPe - ptPs, dAlongAngDeg, dAcrossAngDeg) ;
   // Divido il movimento in tratti con direzione utensile costante
-   const double ANG_STEP = 0.04 ;
-   double dAngDeg ; vtDs.GetAngle( vtDe, dAngDeg) ;
-   int nStepCnt = int( abs( dAngDeg) / ANG_STEP) + 1 ;
+   const double ANG_ACROSS_STEP = 0.04 ;
+   const double ANG_ALONG_STEP = 1.0 ;
+   int nStepCnt = int( max( { abs( dAlongAngDeg) / ANG_ALONG_STEP, abs( dAcrossAngDeg) / ANG_ACROSS_STEP, 1.})) ;
    bool bOk = true ;
    Point3d ptSt = ptPs ;
    for ( int i = 0 ; i <= nStepCnt && bOk ; ++ i) {
@@ -1168,7 +1190,7 @@ VolZmap::SelectMotion( int nGrid, const Point3d& ptLs, const Point3d& ptLe, cons
 }
 
 
-// ---------- VERSORE UTENSILE DERETTO COME Z --------------------------------
+// ---------- VERSORE UTENSILE DIRETTO COME Z --------------------------------
 
 
 // ---------- Cilindro e sfera -----------------------------------------------