diff --git a/LuaLibs/ProcessLapJoint.lua b/LuaLibs/ProcessLapJoint.lua
index 0b63fe5..a77efe3 100644
--- a/LuaLibs/ProcessLapJoint.lua
+++ b/LuaLibs/ProcessLapJoint.lua
@@ -7515,6 +7515,22 @@ function ProcessLapJoint.Make( Proc, nPhase, nRawId, nPartId, dOvmHead)
                return MakeMoreFaces( Proc, nPhase, nRawId, nPartId, dOvmHead, true)
             -- se ortogonali e non forzata lama, con fresa
             elseif not bUseBlade then
+               -- verifico se devo fare prima gli smussi
+               -- recupero gruppo per geometria addizionale
+               local nAddGrpId = BL.GetAddGroup( nPartId)
+               if not nAddGrpId then
+                  local sErr = 'Error : missing AddGroup'
+                  EgtOutLog( sErr)
+                  return false, sErr
+               end
+               -- verifiche per smusso
+               local nChamfer, dDepthCham, sErrCham = EvaluateQParam( Proc)
+               -- se smusso da fare 
+               if nChamfer > 0 then
+                  local _, _, _, vtOrtho, _, nSurfInt = BL.GetTunnelDimension( Proc, nPartId)
+                  local nOk, sErr = MakeChamfer( Proc, true, nAddGrpId, vtOrtho, b3Solid, nSurfInt, dDepthCham)
+                  if nOk < 0 then return false, sErr end
+               end
                -- se piccole
                if Proc.Box:getDimX() < MAX_MILL_LIN and ( Proc.Box:getDimZ() < MAX_MILL_LIN or Proc.Box:getDimY() < MAX_MILL_LIN) and bAdj and abs( dAng + 90) < 1 then
                   return MakeTwoFacesByMill( Proc, nPhase, nRawId, nPartId, bDownHeadMill)