diff --git a/LuaLibs/FacesBySaw.lua b/LuaLibs/FacesBySaw.lua
index 6fcca87..5d0a213 100644
--- a/LuaLibs/FacesBySaw.lua
+++ b/LuaLibs/FacesBySaw.lua
@@ -713,7 +713,8 @@ function FacesBySaw.MakeTwo( Proc, nPhase, nRawId, nPartId, dOvmHead, sCutType,
    end
    -- eventuale segnalazione ingombro di testa o coda
    local dMinHIng = min( 0.5 * BD.VICE_MINH, 0.5 * b3Raw:getDimZ())
-   if bUpdateIng and Proc.Box:getDimZ() > dMinHIng and Proc.Box:getMin():getZ() < b3Raw:getMin():getZ() + dMinHIng and
+   local dMinZ = max( BD.MIN_HEIGHT, 0.35 * b3Raw:getDimZ())
+   if bUpdateIng and Proc.Box:getDimZ() > dMinHIng and Proc.Box:getMin():getZ() < b3Raw:getMin():getZ() + dMinZ and
       not ( abs( vtN[nBigInd]:getX()) < 0.05 and vtN[nBigInd]:getY() < 0 and Proc.Box:getDimX() > 500 and Proc.Box:getDimY() < 40) then
       if Proc.Head then
          local dOffs = b3Solid:getMax():getX() - Proc.Box:getMin():getX()
diff --git a/LuaLibs/ProcessCut.lua b/LuaLibs/ProcessCut.lua
index f141501..04883f4 100644
--- a/LuaLibs/ProcessCut.lua
+++ b/LuaLibs/ProcessCut.lua
@@ -225,7 +225,8 @@ end
 local function UpdateEncumbrance( Proc, vtN, dOvmHead, nRawId, b3Solid, b3Raw)
    -- eventuale segnalazione ingombro di testa o coda (se non chiamata da altre feature)
    local dMinHIng = min( 0.5 * BD.VICE_MINH, 0.5 * b3Raw:getDimZ())
-   if Proc.Box:getDimZ() > dMinHIng and Proc.Box:getMin():getZ() < b3Raw:getMin():getZ() + dMinHIng then
+   local dMinZ = max( BD.MIN_HEIGHT, 0.35 * b3Raw:getDimZ())
+   if Proc.Box:getDimZ() > dMinHIng and Proc.Box:getMin():getZ() < b3Raw:getMin():getZ() + dMinZ then
       if Proc.Head then
          local dOffs = b3Raw:getMax():getX() - dOvmHead - Proc.Box:getMin():getX()
          if vtN:getZ() > 0.5 then
diff --git a/LuaLibs/ProcessFreeContour.lua b/LuaLibs/ProcessFreeContour.lua
index ba41e6d..d03e8a0 100644
--- a/LuaLibs/ProcessFreeContour.lua
+++ b/LuaLibs/ProcessFreeContour.lua
@@ -708,7 +708,8 @@ local function MakeByMill( Proc, nPhase, nRawId, nPartId, dOvmHead)
    end
    -- eventuale segnalazione ingombro di testa o coda
    local dMinHIng = min( 0.5 * BD.VICE_MINH, 0.5 * b3Raw:getDimZ())
-   if Proc.Box:getDimZ() > 0.75 * b3Raw:getDimZ() and Proc.Box:getMin():getZ() < b3Raw:getMin():getZ() + dMinHIng then
+   local dMinZ = max( BD.MIN_HEIGHT, 0.35 * b3Raw:getDimZ())
+   if Proc.Box:getDimZ() > 0.75 * b3Raw:getDimZ() and Proc.Box:getMin():getZ() < b3Raw:getMin():getZ() + dMinZ then
       if Proc.Head then
          local dOffs = b3Raw:getMax():getX() - dOvmHead - Proc.Box:getMin():getX()
          BL.UpdateHCING( nRawId, dOffs)
diff --git a/LuaLibs/ProcessLapJoint.lua b/LuaLibs/ProcessLapJoint.lua
index 10e5ac8..7736ea6 100644
--- a/LuaLibs/ProcessLapJoint.lua
+++ b/LuaLibs/ProcessLapJoint.lua
@@ -612,7 +612,8 @@ local function UpdateEncumbrance( Proc, nRawId, b3Raw, b3Solid)
    if Proc.Fct > 2 then return end
    -- eventuale segnalazione ingombro di testa o coda
    local dMinHIng = min( 0.5 * BD.VICE_MINH, 0.5 * b3Raw:getDimZ())
-   if Proc.Box:getDimZ() > dMinHIng and Proc.Box:getMin():getZ() < b3Raw:getMin():getZ() + dMinHIng then
+   local dMinZ = max( BD.MIN_HEIGHT, 0.35 * b3Raw:getDimZ())
+   if Proc.Box:getDimZ() > dMinHIng and Proc.Box:getMin():getZ() < b3Raw:getMin():getZ() + dMinZ then
       if Proc.Head then
          local dOffs = b3Solid:getMax():getX() - Proc.Box:getMin():getX()
          BL.UpdateHCING( nRawId, dOffs)
diff --git a/Version.lua b/Version.lua
index 7aeadf8..440bcb6 100644
--- a/Version.lua
+++ b/Version.lua
@@ -1,6 +1,6 @@
--- Version.lua by Egaltech s.r.l. 2024/01/24
+-- Version.lua by Egaltech s.r.l. 2024/01/30
 -- Gestione della versione di Beam
 
 NAME = 'Beam'
-VERSION = '2.6a1'
+VERSION = '2.6a2'
 MIN_EXE = '2.6a1'