diff --git a/LuaLibs/FaceData.lua b/LuaLibs/FaceData.lua
index 5c29aef..bdcbea1 100644
--- a/LuaLibs/FaceData.lua
+++ b/LuaLibs/FaceData.lua
@@ -255,6 +255,7 @@ local function GetBottomFaces( Proc)
       CurrentEdge.idAdjacentFace = BottomFaces[1].Edges[i].Adj
       CurrentEdge.vtToolDirection = Vector3d( BottomFaces[1].Edges[i].Norm)
       CurrentEdge.dLength = BottomFaces[1].Edges[i].Len
+      CurrentEdge.dLengthOnX = CurrentEdge.dLength * CurrentEdge.vtToolDirection:getY()
       CurrentEdge.dElevation = BottomFaces[1].Edges[i].Elev
       CurrentEdge.bIsOpen = BottomFaces[1].Edges[i].Open
       CurrentEdge.bIsStartOpen = BottomFaces[1].Edges[nPreviousEdgeIndex].Open
@@ -340,6 +341,7 @@ local function GetLongFaces( Proc, MainFaces)
          CurrentEdge.idAdjacentFace = LongFaces[i].Edges[j].Adj
          CurrentEdge.vtToolDirection = Vector3d( LongFaces[i].Edges[j].Norm)
          CurrentEdge.dLength = LongFaces[i].Edges[j].Len
+         CurrentEdge.dLengthOnX = CurrentEdge.dLength * CurrentEdge.vtToolDirection:getY()
          CurrentEdge.dElevation = LongFaces[i].Edges[j].Elev
          CurrentEdge.bIsOpen = LongFaces[i].Edges[j].Open
          CurrentEdge.bIsStartOpen = LongFaces[i].Edges[nPreviousEdgeIndex].Open
@@ -426,6 +428,7 @@ local function GetSideFaces( Proc, MainFaces)
          CurrentEdge.idAdjacentFace = SideFaces[i].Edges[j].Adj
          CurrentEdge.vtToolDirection = Vector3d( SideFaces[i].Edges[j].Norm)
          CurrentEdge.dLength = SideFaces[i].Edges[j].Len
+         CurrentEdge.dLengthOnX = CurrentEdge.dLength * CurrentEdge.vtToolDirection:getY()
          CurrentEdge.dElevation = SideFaces[i].Edges[j].Elev
          CurrentEdge.bIsOpen = SideFaces[i].Edges[j].Open
          CurrentEdge.bIsStartOpen = SideFaces[i].Edges[nPreviousEdgeIndex].Open
diff --git a/LuaLibs/FeatureLib.lua b/LuaLibs/FeatureLib.lua
index c336db0..684e759 100644
--- a/LuaLibs/FeatureLib.lua
+++ b/LuaLibs/FeatureLib.lua
@@ -294,6 +294,21 @@ function FeatureLib.CalculateCompositeRating( StrategyResult)
    return StrategyResult
 end
 
+-------------------------------------------------------------------------------------------------------------
+function FeatureLib.MachiningNeedsSplitting( dMachiningLengthOnX, Part, OptionalParameters)
+   local bMachiningNeedsSplitting
+
+   -- parametri opzionali
+   if not OptionalParameters then
+      OptionalParameters = {}
+   end
+   local dMaxSegmentLength = OptionalParameters.dMaxSegmentLength or BeamData.LONGCUT_MAXLEN
+
+   bMachiningNeedsSplitting = ( dMachiningLengthOnX > dMaxSegmentLength + 10 * GEO.EPS_SMALL)
+                              or ( dMachiningLengthOnX > 0.7 * Part.b3Solid:getDimX() + 10 * GEO.EPS_SMALL)
+
+   return bMachiningNeedsSplitting
+end
 -------------------------------------------------------------------------------------------------------------
 function FeatureLib.GetFeatureSplittingPoints( Proc, Part, OptionalParameters)
    -- TODO overlap non serve a nulla?? in STR0002 è gestito dal chiamante
@@ -313,7 +328,7 @@ function FeatureLib.GetFeatureSplittingPoints( Proc, Part, OptionalParameters)
    local dToolOverlapBetweenSegments = OptionalParameters.dToolOverlapBetweenSegments or BeamData.MILL_OVERLAP
 
    -- verifica spezzatura necessaria
-   if ( Proc.b3Box:getDimX() < dMaxSegmentLength + 10 * GEO.EPS_SMALL) and ( Proc.b3Box:getDimX() < 0.7 * Part.b3Solid:getDimX() + 10 * GEO.EPS_SMALL) then
+   if not FeatureLib.MachiningNeedsSplitting( Proc.b3Box:getDimX(), Part) then
       return {}
    end
 
diff --git a/Strategies/Standard/STR0002/STR0002.lua b/Strategies/Standard/STR0002/STR0002.lua
index 73d6ded..f4072b8 100644
--- a/Strategies/Standard/STR0002/STR0002.lua
+++ b/Strategies/Standard/STR0002/STR0002.lua
@@ -371,21 +371,21 @@ local function GetSplitSurfaces( Proc, Part)
          local nAddId = EgtCopyGlob( nOriginalTmId, nAddGrpId) or GDB_ID.NULL
          if i == 1 then
             -- prima superficie, va tagliata solo a destra
-            local ptSplit = vFeatureSplittingPoints[i] + Vector3d( BeamData.MILL_OVERLAP, 0, 0)
+            local ptSplit = vFeatureSplittingPoints[i] + Vector3d( BeamData.MILL_OVERLAP / 2, 0, 0)
             EgtCutSurfTmPlane( nAddId, ptSplit, X_AX(), true, GDB_RT.GLOB)
          else
             -- taglio della superficie corrente - lato sinistro
-            local ptSplit = vFeatureSplittingPoints[i - 1] + Vector3d( -BeamData.MILL_OVERLAP, 0, 0)
+            local ptSplit = vFeatureSplittingPoints[i - 1] + Vector3d( -BeamData.MILL_OVERLAP / 2, 0, 0)
             EgtCutSurfTmPlane( nAddId, ptSplit, -X_AX(), true, GDB_RT.GLOB)
             -- taglio della superficie corrente - lato destro
-            ptSplit = vFeatureSplittingPoints[i] + Vector3d( BeamData.MILL_OVERLAP, 0, 0)
+            ptSplit = vFeatureSplittingPoints[i] + Vector3d( BeamData.MILL_OVERLAP / 2, 0, 0)
             EgtCutSurfTmPlane( nAddId, ptSplit, X_AX(), true, GDB_RT.GLOB)
          end
          table.insert( vAddId, nAddId)
       end
       -- taglio ultima superficie, va tagliata solo a sinistra
       local nAddId = EgtCopyGlob( nOriginalTmId, nAddGrpId) or GDB_ID.NULL
-      local ptSplit = vFeatureSplittingPoints[#vFeatureSplittingPoints] + Vector3d( -BeamData.MILL_OVERLAP, 0, 0)
+      local ptSplit = vFeatureSplittingPoints[#vFeatureSplittingPoints] + Vector3d( -BeamData.MILL_OVERLAP / 2, 0, 0)
       EgtCutSurfTmPlane( nAddId, ptSplit, -X_AX(), true, GDB_RT.GLOB)
       table.insert( vAddId, nAddId)
    end