diff --git a/LuaLibs/ProcessLapJoint.lua b/LuaLibs/ProcessLapJoint.lua
index f4d1b89..c3820e0 100644
--- a/LuaLibs/ProcessLapJoint.lua
+++ b/LuaLibs/ProcessLapJoint.lua
@@ -4750,6 +4750,7 @@ SawPlusChain.ApplyOnlySawblade = false
 function SawPlusChain.IsTopologyOk( Proc)
    if Proc.TopologyLongName == 'Pocket-Blind-RightAngles-Parallel-5' or
       Proc.TopologyLongName == 'Groove-Through-RightAngles-Parallel-3' or
+      Proc.TopologyLongName == 'Groove-Through-RightAngles-NotParallel-3' or
       Proc.TopologyLongName == 'Groove-Blind-RightAngles-Parallel-4'  or
       Proc.TopologyLongName == 'Tunnel-Through-RightAngles-Parallel-4' then
 
@@ -5268,11 +5269,16 @@ function SawPlusChain.Saw.CalculateMachiningParameters( Proc, FaceToMachine, Edg
    end
 
    -- ricerca lavorazione
-   Cutting.Name = ML.FindCutting( 'HeadSide', true, false, EdgeToMachine.Elevation)
+   Cutting.Name = ML.FindCutting( 'HeadSide', true, false, abs( EdgeToMachine.Elevation))
    if not Cutting.Name then
-      Cutting.Message = 'Feature '.. Proc.FeatureId .. ' : strategy ' .. SawPlusChain.Name .. ' not applicable - saw blade not found'
-      Cutting.CanApply = false
-      EgtOutLog( Cutting.Message)
+      -- ricerca lavorazione senza considerare massima elevazione
+      Cutting.Name = ML.FindCutting( 'HeadSide', true, false, nil, 'Longest')
+      if not Cutting.Name then
+         Cutting.Message = 'Feature '.. Proc.FeatureId .. ' : strategy ' .. SawPlusChain.Name .. ' not applicable - saw blade not found'
+         Cutting.CanApply = false
+         EgtOutLog( Cutting.Message)
+         return Cutting
+      end
    end
    Cutting.Type = MCH_OY.MILLING
    Cutting.Tool = SawPlusChain.GetToolFromMachining( Cutting.Name)
@@ -5673,7 +5679,7 @@ function SawPlusChain.Make( bOnlySaw, Proc, nRawId)
       end
    else
       -- se la lama non è arrivata sul fondo e c'è almeno un lato aperto va lavorato
-      if Cutting.RadialOffset > 10 * GEO.EPS_SMALL then
+      if Cutting.CanApply and Cutting.RadialOffset > 10 * GEO.EPS_SMALL then
          -- eventuale lavorazione di lama - lato della tasca da cui inizia la lavorazione
          if Proc.MainFaces.LongFace.Edges.BottomEdge.IsStartOpen then
             Cutting = SawPlusChain.Saw.CalculateMachiningParameters( Proc, Proc.MainFaces.LongFace, Proc.MainFaces.LongFace.Edges.SideEdges.StartEdge)