diff --git a/EgtMachKernel.rc b/EgtMachKernel.rc
index 46271b2..205fca1 100644
Binary files a/EgtMachKernel.rc and b/EgtMachKernel.rc differ
diff --git a/Sawing.cpp b/Sawing.cpp
index 1d13c56..2a8b806 100644
--- a/Sawing.cpp
+++ b/Sawing.cpp
@@ -1872,11 +1872,13 @@ Sawing::GenerateLineCl( const ICurveLine* pLine, const Vector3d& vtTool, const V
       dAppr /= cos( m_Params.m_dSideAngle * DEGTORAD) ;
   // valori di step
    double dActStep = m_Params.m_dStep ;
-   double dActBstep = GetStepBack() ; 
+   double dActBstep = GetStepBack() ;
    if ( abs( m_Params.m_dSideAngle) > 10 * EPS_ANG_SMALL) {
       dActStep = GetStepSideAng() ;
       dActBstep = GetStepSideAngBack() ;
    }
+   if ( dActBstep < EPS_SMALL)
+      dActBstep = dActStep ;
 
   // Se una sola passata
    if ( dActStep < EPS_SMALL  ||  ( dElev - dExtraCut) <= dActStep) {