diff --git a/EgtMachKernel.rc b/EgtMachKernel.rc
index 3aa2010..7fce8fb 100644
Binary files a/EgtMachKernel.rc and b/EgtMachKernel.rc differ
diff --git a/Milling.cpp b/Milling.cpp
index ea5b0ce..a262376 100644
--- a/Milling.cpp
+++ b/Milling.cpp
@@ -2749,7 +2749,16 @@ Milling::AddLeadIn( const Point3d& ptP1, const Point3d& ptStart, const Vector3d&
          if ( IsNull( pCrv))
             return false ;
          pCrv->Invert() ;
-         return ( AddCurveMove( pCrv, MCH_CL_LEADIN) != GDB_ID_NULL) ;
+        // eventuale spezzatura
+         if ( bSplitArcs) {
+            PtrOwner<ICurveComposite> pCompo( CreateCurveComposite()) ;
+            if ( IsNull( pCompo)  ||  ! pCompo->AddCurve( Release( pCrv))  ||  ! ApproxWithLines( pCompo))
+               return false ;
+            return ( AddCurveMove( pCompo, MCH_CL_LEADIN) != GDB_ID_NULL) ;          
+         }
+         else {
+            return ( AddCurveMove( pCrv, MCH_CL_LEADIN) != GDB_ID_NULL) ;
+         }
       }
    case MILL_LI_GLIDE :
       {
@@ -2905,7 +2914,16 @@ Milling::AddLeadOut( const Point3d& ptEnd, const Vector3d& vtEnd, const Vector3d
          PtrOwner<ICurve> pCrv( GetArc2PVN( ptEnd, ptP1, vtEnd, vtN)) ;
          if ( IsNull( pCrv))
             return false ;
-         return ( AddCurveMove( pCrv, MCH_CL_LEADOUT) != GDB_ID_NULL) ;
+        // eventuale spezzatura
+         if ( bSplitArcs) {
+            PtrOwner<ICurveComposite> pCompo( CreateCurveComposite()) ;
+            if ( IsNull( pCompo)  ||  ! pCompo->AddCurve( Release( pCrv))  ||  ! ApproxWithLines( pCompo))
+               return false ;
+            return ( AddCurveMove( pCompo, MCH_CL_LEADOUT) != GDB_ID_NULL) ;          
+         }
+         else {
+            return ( AddCurveMove( pCrv, MCH_CL_LEADOUT) != GDB_ID_NULL) ;
+         }
       }
    case MILL_LO_GLIDE :
       {