diff --git a/LuaLibs/WProcessCut.lua b/LuaLibs/WProcessCut.lua
index b485c8c..215047a 100644
--- a/LuaLibs/WProcessCut.lua
+++ b/LuaLibs/WProcessCut.lua
@@ -30,7 +30,7 @@ function WPC.Classify( Proc, b3Raw)
    if Proc.Fct ~= 1 then return false end
    -- controllo la normale
    local ptC, vtN = EgtSurfTmFacetCenter( Proc.Id, 0, GDB_ID.ROOT)
-   if abs( vtN:getZ()) < WD.NZ_MINA then return false end
+   if vtN:getZ() < -0.5 then return false end
    return true
 end
 
diff --git a/LuaLibs/WallExec.lua b/LuaLibs/WallExec.lua
index ca7ab9b..9b19527 100644
--- a/LuaLibs/WallExec.lua
+++ b/LuaLibs/WallExec.lua
@@ -1,4 +1,4 @@
--- WallExec.lua by Egaltech s.r.l. 2021/10/18
+-- WallExec.lua by Egaltech s.r.l. 2021/10/19
 -- Libreria esecuzione lavorazioni per Pareti
 
 -- Tabella per definizione modulo
@@ -450,7 +450,7 @@ function WallExec.ProcessFeatures()
          else
             table.insert( Stats, {Err=0, Msg='', Rot=0, CutId=Proc.CutId, TaskId=Proc.TaskId})
          end
-      else
+      elseif not Proc.Double then 
          local sMsg = 'Feature not machinable by orientation'
          table.insert( Stats, {Err=1, Msg=sMsg, Rot=0, CutId=Proc.CutId, TaskId=Proc.TaskId})
       end