diff --git a/LuaLibs/ProcessLapJoint.lua b/LuaLibs/ProcessLapJoint.lua
index 363bf93..1e3e491 100644
--- a/LuaLibs/ProcessLapJoint.lua
+++ b/LuaLibs/ProcessLapJoint.lua
@@ -4739,26 +4739,6 @@ function SawPlusChain.GetToolFromMachining( sMachiningName)
 end
 
 
-function SawPlusChain.GetSCC( vtMachiningDirection)
-   local nSCC = MCH_SCC.NONE
-   if AreSameVectorApprox( vtMachiningDirection, Z_AX()) then
-      nSCC = MCH_SCC.ADIR_ZP
-   elseif AreOppositeVectorApprox( vtMachiningDirection, Z_AX()) then
-      nSCC = MCH_SCC.ADIR_ZM
-   elseif AreSameVectorApprox( vtMachiningDirection, Y_AX()) then
-      nSCC = MCH_SCC.ADIR_YP
-   elseif AreOppositeVectorApprox( vtMachiningDirection, Y_AX()) then
-      nSCC = MCH_SCC.ADIR_YM
-   elseif AreSameVectorApprox( vtMachiningDirection, X_AX()) then
-      nSCC = MCH_SCC.ADIR_XP
-   elseif AreOppositeVectorApprox( vtMachiningDirection, X_AX()) then
-      nSCC = MCH_SCC.ADIR_XM
-   end
-
-   return nSCC
-end
-
-
 function SawPlusChain.GetVerticalSteps( Proc, Machining)
    if not Proc.Pocket or not Proc.Pocket.Height then
       error( 'Missing pocket depth')
@@ -4848,11 +4828,11 @@ function SawPlusChain.CalculateLeadInOut( Proc, Machining)
       elseif bIsStartClosed then
          LeadIn.StartAddLength = -dAddLengthToReduce
          -- eventuale correzione per accorciamento maggiore di larghezza tasca
-         LeadOut.EndAddLength = BD.CUT_EXTRA + max( -LeadIn.StartAddLength - Proc.Pocket.Width, 0)
+         LeadOut.EndAddLength = max( -LeadIn.StartAddLength - Proc.Pocket.Width + 10 * BD.CUT_EXTRA, BD.CUT_EXTRA)
       elseif bIsEndClosed then
          LeadOut.EndAddLength = -dAddLengthToReduce
          -- eventuale correzione per accorciamento maggiore di larghezza tasca
-         LeadIn.StartAddLength = BD.CUT_EXTRA + max( -LeadOut.EndAddLength - Proc.Pocket.Width, 0)
+         LeadIn.StartAddLength = max( -LeadOut.EndAddLength - Proc.Pocket.Width + 10 * BD.CUT_EXTRA, BD.CUT_EXTRA)
       else
          LeadIn.StartAddLength = BD.CUT_EXTRA
          LeadOut.EndAddLength = BD.CUT_EXTRA
@@ -4936,6 +4916,26 @@ function SawPlusChain.ApplyMachining( Machining, sOperationNamePrefix, b3Raw)
 end
 
 
+function SawPlusChain.Saw.GetSCC( vtMachiningDirection)
+   local nSCC = MCH_SCC.NONE
+   if AreSameVectorApprox( vtMachiningDirection, Z_AX()) then
+      nSCC = MCH_SCC.ADIR_ZP
+   elseif AreOppositeVectorApprox( vtMachiningDirection, Z_AX()) then
+      nSCC = MCH_SCC.ADIR_ZM
+   elseif AreSameVectorApprox( vtMachiningDirection, Y_AX()) then
+      nSCC = MCH_SCC.ADIR_YP
+   elseif AreOppositeVectorApprox( vtMachiningDirection, Y_AX()) then
+      nSCC = MCH_SCC.ADIR_YM
+   elseif AreSameVectorApprox( vtMachiningDirection, X_AX()) then
+      nSCC = MCH_SCC.ADIR_XP
+   elseif AreOppositeVectorApprox( vtMachiningDirection, X_AX()) then
+      nSCC = MCH_SCC.ADIR_XM
+   end
+
+   return nSCC
+end
+
+
 function SawPlusChain.Saw.CalculateMachiningParameters( Proc)
    local Cutting = {}
    Cutting.CanApply = true
@@ -5009,7 +5009,7 @@ function SawPlusChain.Saw.CalculateMachiningParameters( Proc)
    -- faceuse
    Cutting.Faceuse = BL.GetNearestOrthoOpposite( Proc.Pocket.Direction)
    -- SCC
-   Cutting.SCC = SawPlusChain.GetSCC( Proc.Pocket.Direction)
+   Cutting.SCC = SawPlusChain.Saw.GetSCC( Proc.Pocket.Direction)
    -- angoli suggeriti
    Cutting.SuggestedAngles = ''
    -- asse bloccato