diff --git a/LuaLibs/ProcessLapJoint.lua b/LuaLibs/ProcessLapJoint.lua
index cd84499..cf4710b 100644
--- a/LuaLibs/ProcessLapJoint.lua
+++ b/LuaLibs/ProcessLapJoint.lua
@@ -1792,7 +1792,9 @@ local function MakeRoundCleanContour( Proc, nPhase, nRawId, nPartId, b3Raw,
                                       dDepth, bOneShot)
 
    -- recupero la lavorazione senza considerare l'elevazione perché viene calcolata l'elevazione utile
-   local sMilling = ML.FindMilling( 'SmallToolContour', nil, nil, nil, nil, not( bMillDown and not bDoubleSide), bMillDown and not bDoubleSide)
+   local bTopHead = not( bMillDown and not bDoubleSide)
+   local bDownHead = bMillDown and not bDoubleSide
+   local sMilling = ML.FindMilling( 'SmallToolContour', nil, nil, nil, nil, bTopHead, bDownHead)
    if not sMilling then
       local sMyWarn = 'Warning : SmallToolContour not found in library'
       EgtOutLog( sMyWarn)
@@ -1954,24 +1956,31 @@ local function MakeRoundCleanContour( Proc, nPhase, nRawId, nPartId, b3Raw,
       EgtSetMachiningParam( MCH_MP.WORKSIDE, MCH_MILL_WS.LEFT)
       -- inversione direzione utensile
       local bInvertMach = false
+      local bInvertTool = false
       if nPathInt then
-         if bMillDown and not bDoubleSide then
+         if bDownHead then
             if vtN1:getZ() > 10 * GEO.EPS_SMALL then
-               EgtSetMachiningParam( MCH_MP.TOOLINVERT, true)
+               bInvertTool = true
+               bInvertMach = true
+            end
+         elseif bMillDown and bDoubleSide then
+            if vtN1:getZ() > 10 * GEO.EPS_SMALL and bDownHead then
+               bInvertTool = true
                bInvertMach = true
             end
          else
             -- verifico se devo invertire direzione utensile (in caso di direzione verso la verticale)
-            if vtN1:getZ() < BD.NZ_MINA and abs(vtN1:getZ()) >= 0.707 then
-               EgtSetMachiningParam( MCH_MP.TOOLINVERT, true)
+            if vtN1:getZ() < BD.NZ_MINA and abs( vtN1:getZ()) >= 0.707 then
+               bInvertTool = true
                bInvertMach = true
             -- altrimenti se da fare in una sola volta e direzionato verso Y+ lo inverto per lavorarlo davanti
-            elseif not bDoubleSide and vtN1:getY() > GEO.EPS_SMALL then
-               EgtSetMachiningParam( MCH_MP.TOOLINVERT, true)
+            elseif not bDoubleSide and vtN1:getY() > 10 * GEO.EPS_SMALL then
+               bInvertTool = true
                bInvertMach = true
             end
          end
       end
+      EgtSetMachiningParam( MCH_MP.TOOLINVERT, bInvertMach)
       -- imposto posizione braccio porta testa
       local nSCC = MCH_SCC.NONE
       if not BD.C_SIMM then
@@ -2046,7 +2055,7 @@ local function MakeRoundCleanContour( Proc, nPhase, nRawId, nPartId, b3Raw,
          -- imposto lato di lavoro sinistro
          EgtSetMachiningParam( MCH_MP.WORKSIDE, MCH_MILL_WS.LEFT)
          -- imposto direzione utensile opposta
-         EgtSetMachiningParam( MCH_MP.TOOLINVERT, true)
+         EgtSetMachiningParam( MCH_MP.TOOLINVERT, not bInvertTool)
          -- imposto posizione braccio porta testa
          local nSCC = MCH_SCC.NONE
          if not BD.C_SIMM then
@@ -2075,7 +2084,7 @@ local function MakeRoundCleanContour( Proc, nPhase, nRawId, nPartId, b3Raw,
          EgtSetMachiningParam( MCH_MP.DEPTH, dMachDepth)
          -- setto se devo invertire il percorso
          local bInvert = CheckToInvert( nIdPath, true)
-         EgtSetMachiningParam( MCH_MP.INVERT, not bInvert)
+         EgtSetMachiningParam( MCH_MP.INVERT, not EgtIf( bInvertMach, not bInvert, bInvert))
          -- Note utente con dichiarazione nessuna generazione sfridi per Vmill e massima elevazione
          local sUserNotes = EgtGetMachiningParam( MCH_MP.USERNOTES) or ''
          sUserNotes = EgtSetValInNotes( sUserNotes, 'VMRS', 0)
@@ -4590,9 +4599,11 @@ local function MakeByPockets( Proc, nPhase, nRawId, nPartId, nChamfer, dDepthCha
                   else
                      dMachDepth = dMaxDepthDn - ( dDepth / 2) - dCollSic
                      dElev = dMaxDepthDn
-                     bComplete = false
-                     sWarn = 'Warning : elevation bigger than max tool depth'
-                     EgtOutLog( sWarn)
+                     if dMaxDepthDn < ( dDepth / 2) + dCollSic + 100 * GEO.EPS_SMALL then
+                        bComplete = false
+                        sWarn = 'Warning : elevation bigger than max tool depth'
+                        EgtOutLog( sWarn)
+                     end
                   end
                else
                   -- se anche lavorando dal lato opposto non riesco a svuotare completamente la fessura 
@@ -4600,9 +4611,11 @@ local function MakeByPockets( Proc, nPhase, nRawId, nPartId, nChamfer, dDepthCha
                   if dMaxDepth < ( dDepth / 2) + BD.CUT_EXTRA + dCollSic then
                      dMachDepth = dMaxDepth - (dDepth / 2) - dCollSic
                      dElev = dMaxDepth
-                     bComplete = false
-                     sWarn = 'Warning : elevation bigger than max tool depth'
-                     EgtOutLog( sWarn)
+                     if dMaxDepth < ( dDepth / 2) + dCollSic + 100 * GEO.EPS_SMALL then
+                        bComplete = false
+                        sWarn = 'Warning : elevation bigger than max tool depth'
+                        EgtOutLog( sWarn)
+                     end
                   end
                end
                if bMakeContour then
@@ -8181,7 +8194,7 @@ local function MakeMoreFaces( Proc, nPhase, nRawId, nPartId, dOvmHead, bSinglePa
                               local bOk, sWarn2 = MakeRoundCleanCornerOrContour( Proc, nPhase, nRawId, nPartId, b3Raw, 
                                                                                  nFacInd, nAddGrpId, dDiamTool, nContourSmallTool, bMillDown, 
                                                                                  bDoubleSide, vtOrtho, nPathInt, nSurfInt, b3Solid, 
-                                                                                 dDepth, bOneShotm)
+                                                                                 dDepth, bOneShot)
                               if not bOk then return false, sWarn2 end
                               if sWarn2 then
                                  if not sWarn then sWarn = '' end
@@ -8273,7 +8286,7 @@ local function MakeMoreFaces( Proc, nPhase, nRawId, nPartId, dOvmHead, bSinglePa
                                     local bOk, sWarn2 = MakeRoundCleanCornerOrContour( Proc, nPhase, nRawId, nPartId, b3Raw, 
                                                                                        nFacInd, nAddGrpId, dDiamTool, nContourSmallTool, bMillDown, 
                                                                                        bDoubleSide, vtOrtho, nPathInt, nSurfInt, b3Solid, 
-                                                                                       dDepth, bOneShotm)
+                                                                                       dDepth, bOneShot)
                                     if not bOk then return false, sWarn2 end
                                     if sWarn2 then
                                        if not sWarn then sWarn = '' end