diff --git a/LuaLibs/FacesBySaw.lua b/LuaLibs/FacesBySaw.lua
index 470df36..c3008a9 100644
--- a/LuaLibs/FacesBySaw.lua
+++ b/LuaLibs/FacesBySaw.lua
@@ -231,7 +231,7 @@ local function GetEdgeToMachineFromVector( nSurfId, nFacet, vtOrthO)
 end
 
 ---------------------------------------------------------------------
-function FacesBySaw.MakeOne( nSurfId, nFacet, sCutting, dSawDiam, Par5, dVzLimDwnUp, dCutExtra, dCutSic, dCutOffset, dAccStart, dAccEnd, sNotes, b3Raw, bForceInvert, bMaximizeVerticalDepth, bSpecialTangentLeadInOut, sLeadInOutType, Par5Alternative, dActualElevation)
+function FacesBySaw.MakeOne( nSurfId, nFacet, sCutting, dSawDiam, Par5, dVzLimDwnUp, dCutExtra, dCutSic, dCutOffset, dAccStart, dAccEnd, sNotes, b3Raw, bForceInvert, bMaximizeVerticalDepth, bSpecialTangentLeadInOut, sLeadInOutType, Par5Alternative, dActualElevation, bForceClimbCut)
    -- se lama con asse parallelo alla faccia, passo alla apposita funzione
    if ( Par5 == MCH_MILL_FU.PARAL_DOWN or
         Par5 == MCH_MILL_FU.PARAL_TOP or
@@ -298,7 +298,7 @@ function FacesBySaw.MakeOne( nSurfId, nFacet, sCutting, dSawDiam, Par5, dVzLimDw
       if not BD.TURN or abs( ptP2:getY() - ptP1:getY()) < 250 then
          local bIsMachiningDownwards = ( ptP2:getZ() < ptP1:getZ() - 100 * GEO.EPS_SMALL)
          local bIsMachiningUpwards = ( ptP2:getZ() > ptP1:getZ() + 100 * GEO.EPS_SMALL)
-         if ( bIsSawCCW ~= bDownUp) and ( bIsMachiningDownwards or not ( bIsMachiningDownwards or bIsMachiningUpwards)) then
+         if ( bIsSawCCW ~= bDownUp) and ( bIsMachiningDownwards or not ( bIsMachiningDownwards or bIsMachiningUpwards) or bForceClimbCut) then
             bInvert = true
          elseif ( ( bIsSawCCW ~= bDownUp) ~= bIsMachiningDownwards) then
             if Par5Alternative then
diff --git a/LuaLibs/ProcessLapJoint.lua b/LuaLibs/ProcessLapJoint.lua
index b3b4591..b32b06b 100644
--- a/LuaLibs/ProcessLapJoint.lua
+++ b/LuaLibs/ProcessLapJoint.lua
@@ -3316,7 +3316,8 @@ local function MakeByChainOrSaw( Proc, nPhase, nRawId, nPartId, nFacInd,
       end
       for i = 1, nStep do
          local dOffs = ( i - 1) * dStep
-         local bOk, sErr = Fbs.MakeOne( Proc.Id, nFacAdj, sCutting, dSawDiam, nFaceUse, -0.01, 0, BD.CUT_SIC, dOffs, 0, 0, nil, b3Raw)
+         local bForceClimbCut = true
+         local bOk, sErr = Fbs.MakeOne( Proc.Id, nFacAdj, sCutting, dSawDiam, nFaceUse, -0.01, 0, BD.CUT_SIC, dOffs, 0, 0, nil, b3Raw, nil, nil, nil, nil, nil, nil, bForceClimbCut)
          if not bOk then return bOk, sErr end
       end
       -- in base all'elevazione calcolo l'impronta della lama