diff --git a/LuaLibs/WProcessCut.lua b/LuaLibs/WProcessCut.lua
index b8ab00b..b134fb3 100644
--- a/LuaLibs/WProcessCut.lua
+++ b/LuaLibs/WProcessCut.lua
@@ -1,5 +1,6 @@
 -- WProcessCut.lua by Egaltech s.r.l. 2020/11/25
 -- Gestione calcolo taglio di testa o longitudinale per Pareti
+-- 2023/07/26 Angolo Z minimo ora gestito tramite costante da WallData CUT_VZ_MIN (default sempre -0.5).
 
 -- Tabella per definizione modulo
 local WPC = {}
@@ -31,7 +32,7 @@ function WPC.Classify( Proc, b3Raw)
    if Proc.Fct ~= 1 then return false end
    -- controllo la normale
    local vtN = EgtSurfTmFacetNormVersor( Proc.Id, 0, GDB_ID.ROOT)
-   if vtN:getZ() < - 0.5 then return false end
+   if vtN:getZ() < ( WD.CUT_VZ_MIN or - 0.5) then return false end
    return true
 end
 
@@ -40,29 +41,29 @@ end
 -- return nFlip0, nFlip1
 function WPC.FlipClassify( Proc)
    -- verifico abbia una sola faccia
-   if Proc.Fct ~= 1 then return 0, 0 end 
+   if Proc.Fct ~= 1 then return 0, 0 end
    -- controllo la normale
    local vtN = EgtSurfTmFacetNormVersor( Proc.Id, 0, GDB_ID.ROOT)
    local vtNZ = vtN:getZ()
    if vtNZ > - GEO.EPS_SMALL then
       nFlip0 = 100
-   elseif vtNZ < -0.5 then 
+   elseif vtNZ < ( WD.CUT_VZ_MIN or - 0.5) then
       nFlip0 = 0
    else
-      nFlip0 = 50 
-   end 
+      nFlip0 = 50
+   end
    
    if - vtNZ > - GEO.EPS_SMALL then
       nFlip1 = 100
-   elseif - vtNZ < -0.5 then 
+   elseif - vtNZ < ( WD.CUT_VZ_MIN or - 0.5) then
       nFlip1 = 0
    else
       nFlip1 = 50
-   end    
+   end
    
    --nFlip0 = EgtIf( vtN:getZ() < -0.5, 0, 100) 
    --nFlip1 = EgtIf( - vtN:getZ() < -0.5, 0, 100) 
-   return nFlip0, nFlip1 
+   return nFlip0, nFlip1
 end
 
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