diff --git a/LuaLibs/WProcessFreeContour.lua b/LuaLibs/WProcessFreeContour.lua
index c5a4598..ceb9901 100644
--- a/LuaLibs/WProcessFreeContour.lua
+++ b/LuaLibs/WProcessFreeContour.lua
@@ -761,6 +761,24 @@ local function MakeLocalSurf( ptP1, ptP2, ptP3, nAddGrpId)
    return nFaceId
 end
 
+---------------------------------------------------------------------
+local function GetEdgeToMachineFromVector( nSurfId, nFacet, vtOrtho)
+   local _, EdgesEgt = EgtSurfTmGetFacetOutlineInfo( nSurfId, nFacet, GDB_ID.ROOT)
+
+   local nEdgeIndMax = 0
+   local dMaxComp = - GEO.INFINITO
+   for i = 1, #EdgesEgt do
+      local vtN = -EdgesEgt[i].Norm
+      local dComp = vtN * vtOrtho
+      if dComp > dMaxComp then
+         nEdgeIndMax = i -1
+         dMaxComp = dComp
+      end
+   end
+
+   return nEdgeIndMax
+end
+
 ---------------------------------------------------------------------
 local function AddMillCornerMachining( nPartId, nNewProc, nFacInd, tFacAdj, nTypeConeCut, nAddGrpId, 
                                        dToolDiam, dThick, sMilling, dOffsAng, dDepthMach, 
@@ -1296,6 +1314,11 @@ local function AddMillings( sMilling, vFace, Proc, nRawId, b3Raw, nConeCut, nAdd
          EgtSetMachiningParam( MCH_MP.INVERT, false)
          -- assegno utilizzo faccia
          EgtSetMachiningParam( MCH_MP.FACEUSE, MCH_MILL_FU.PARAL_DOWN)
+         local nEdgeFaceUse = GetEdgeToMachineFromVector( Proc.Id, vFace[i].Fac, Z_AX())
+         if nEdgeFaceUse then
+            local sNoteEdgeFaceUse = 'EdgesFaceUse=' .. EgtNumToString( nEdgeFaceUse)  .. ';'
+            EgtSetMachiningParam( MCH_MP.USERNOTES, sNoteEdgeFaceUse)
+         end
          -- assegno affondamento
          EgtSetMachiningParam( MCH_MP.DEPTH, dDepth)
          -- assegno lato di lavoro
@@ -1449,6 +1472,13 @@ local function AddMillings( sMilling, vFace, Proc, nRawId, b3Raw, nConeCut, nAdd
             EgtSetMachiningParam( MCH_MP.INVERT, false)
             -- assegno utilizzo faccia
             EgtSetMachiningParam( MCH_MP.FACEUSE, MCH_MILL_FU.PARAL_DOWN)
+            if #vGeom == 1 then
+               local nEdgeFaceUse = GetEdgeToMachineFromVector( Proc.Id, vGeom[1][2], Z_AX())
+               if nEdgeFaceUse then
+                  local sNoteEdgeFaceUse = 'EdgesFaceUse=' .. EgtNumToString( nEdgeFaceUse)  .. ';'
+                  EgtSetMachiningParam( MCH_MP.USERNOTES, sNoteEdgeFaceUse)
+               end
+            end
             -- assegno affondamento
             EgtSetMachiningParam( MCH_MP.DEPTH, dDepth)
             -- assegno lato di lavoro
@@ -1473,6 +1503,13 @@ local function AddMillings( sMilling, vFace, Proc, nRawId, b3Raw, nConeCut, nAdd
             EgtSetMachiningParam( MCH_MP.INVERT, false)
             -- assegno utilizzo faccia
             EgtSetMachiningParam( MCH_MP.FACEUSE, MCH_MILL_FU.PARAL_DOWN)
+            if #vGeom == 1 then
+               local nEdgeFaceUse = GetEdgeToMachineFromVector( Proc.Id, vGeom[1][2], Z_AX())
+               if nEdgeFaceUse then
+                  local sNoteEdgeFaceUse = 'EdgesFaceUse=' .. EgtNumToString( nEdgeFaceUse)  .. ';'
+                  EgtSetMachiningParam( MCH_MP.USERNOTES, sNoteEdgeFaceUse)
+               end
+            end
             -- assegno affondamento
 --            EgtSetMachiningParam( MCH_MP.DEPTH, dDepth)
             if bNotThrou then
@@ -1566,6 +1603,11 @@ local function AddMillings( sMilling, vFace, Proc, nRawId, b3Raw, nConeCut, nAdd
          EgtSetMachiningParam( MCH_MP.INVERT, false)
          -- assegno utilizzo faccia
          EgtSetMachiningParam( MCH_MP.FACEUSE, MCH_MILL_FU.PARAL_DOWN)
+         local nEdgeFaceUse = GetEdgeToMachineFromVector( Proc.Id, vFace[i].Fac, Z_AX())
+         if nEdgeFaceUse then
+            local sNoteEdgeFaceUse = 'EdgesFaceUse=' .. EgtNumToString( nEdgeFaceUse)  .. ';'
+            EgtSetMachiningParam( MCH_MP.USERNOTES, sNoteEdgeFaceUse)
+         end
          -- assegno affondamento
          EgtSetMachiningParam( MCH_MP.DEPTH, dDepth)
          -- assegno lato di lavoro