diff --git a/VolZmapVolume.cpp b/VolZmapVolume.cpp
index 1ad3af4..3b1f497 100644
--- a/VolZmapVolume.cpp
+++ b/VolZmapVolume.cpp
@@ -560,7 +560,7 @@ VolZmap::MillingGeneralMotionStep( const Point3d& ptPs, const Vector3d& vtDs, co
                                    const Point3d& ptPe, const Vector3d& vtDe, const Vector3d& vtAe)
 {
   // Divido il movimento in tratti con direzione utensile costante
-   const double ANG_STEP = 0.5 ;
+   const double ANG_STEP = 0.02 ;
    double dAngDeg ; vtDs.GetAngle( vtDe, dAngDeg) ;
    int nStepCnt = int( abs( dAngDeg) / ANG_STEP) + 1 ;
    bool bOk = true ;