diff --git a/LuaLibs/WProcessFreeContour.lua b/LuaLibs/WProcessFreeContour.lua
index 42745fb..bbb41bf 100644
--- a/LuaLibs/WProcessFreeContour.lua
+++ b/LuaLibs/WProcessFreeContour.lua
@@ -2013,7 +2013,7 @@ local function MakeByCut( Proc, nRawId, b3Raw, b3Squaring)
    -- recupero i dati di tutte le facce
    local vFace, dMaxWidth, nNewProc = GetFacesData( Proc, bOpposite, true, dSawDiam, dSawMaxDepth, dSawThick, nAddGrpId, b3Raw)
    -- inserimento dei tagli di lama
-   local bForceConventionalSawing = EgtGetInfo( Proc.Id, 'Q09', 'd') == 1
+   local bForceConventionalSawing = WD.USE_CONVENTIONAL_SAWING
    local bCtOk, sCtErr = AddCuts( sCutting, vFace, Proc, nRawId, b3Raw, dSawThick, b3Squaring, bForceConventionalSawing)
    if not bCtOk then return bCtOk, sCtErr end
    -- se richiesta solo lama, esco
diff --git a/LuaLibs/WallExec.lua b/LuaLibs/WallExec.lua
index 0aad1d4..4eb0bf0 100644
--- a/LuaLibs/WallExec.lua
+++ b/LuaLibs/WallExec.lua
@@ -71,40 +71,40 @@ local function GetRawOrigAndDeltas()
       sOrigCorner = WD.GetOrigCorner( EgtGetInfo( BtlInfoId, 'REFPOS', 'i') or 0)
    end
    -- offset da interfaccia
-   local dDeltaXFromBtl = EgtGetInfo( BtlInfoId, 'PANELDELTAY', 'd') or 0
-   local dDeltaYFromBtl = EgtGetInfo( BtlInfoId, 'PANELDELTAX', 'd') or 0
-   local dDeltaZFromBtl = EgtGetInfo( BtlInfoId, 'PANELDELTAZ', 'd') or 0
+   local dDeltaXFromBtl = EgtGetInfo( BtlInfoId, 'PANELDELTAY', 'd')
+   local dDeltaYFromBtl = EgtGetInfo( BtlInfoId, 'PANELDELTAX', 'd')
+   local dDeltaZFromBtl = EgtGetInfo( BtlInfoId, 'PANELDELTAZ', 'd')
    -- se da interfaccia arriva un valore > 0 si usa quello, altrimenti si legge da WallData (default 0)
-   local DeltaX = EgtIf( dDeltaXFromBtl > 0, dDeltaXFromBtl, WD.DELTA_X or 0)
-   local DeltaY = EgtIf( dDeltaYFromBtl > 0, dDeltaYFromBtl, WD.DELTA_Y or 0)
-   local DeltaZ = EgtIf( dDeltaZFromBtl > 0, dDeltaZFromBtl, WD.DELTA_Z or 0)
+   local DeltaX = EgtIf( dDeltaXFromBtl, dDeltaXFromBtl, WD.DELTA_X or 0)
+   local DeltaY = EgtIf( dDeltaYFromBtl, dDeltaYFromBtl, WD.DELTA_Y or 0)
+   local DeltaZ = EgtIf( dDeltaZFromBtl, dDeltaZFromBtl, WD.DELTA_Z or 0)
 
    local nCorner
    local OrigOnTab
    if sOrigCorner == 'TL' then
       nCorner = MCH_CR.TL
-      OrigOnTab = Point3d( 0 + abs( DeltaX), b3Tab:getDimY() - abs( DeltaY), DeltaZ)
+      OrigOnTab = Point3d( 0 + DeltaX, b3Tab:getDimY() - DeltaY, DeltaZ)
    elseif sOrigCorner == 'BL' then
       nCorner = MCH_CR.BL
-      OrigOnTab = Point3d( 0 + abs( DeltaX), abs( DeltaY), DeltaZ)
+      OrigOnTab = Point3d( 0 + DeltaX, DeltaY, DeltaZ)
    elseif sOrigCorner == 'TR' then
       nCorner = MCH_CR.TR
-      OrigOnTab = Point3d( b3Tab:getDimX() - abs( DeltaX), b3Tab:getDimY() - abs( DeltaY), DeltaZ)
+      OrigOnTab = Point3d( b3Tab:getDimX() - DeltaX, b3Tab:getDimY() - DeltaY, DeltaZ)
    elseif sOrigCorner == 'BR' then
       nCorner = MCH_CR.BR
-      OrigOnTab = Point3d( b3Tab:getDimX() - abs( DeltaX), abs( DeltaY), DeltaZ)
+      OrigOnTab = Point3d( b3Tab:getDimX() - DeltaX, DeltaY, DeltaZ)
    elseif sOrigCorner == 'TM' then
       nCorner = MCH_CR.TR
-      OrigOnTab = Point3d( WD.MID_REF - abs( DeltaX), b3Tab:getDimY() - abs( DeltaY), DeltaZ)
+      OrigOnTab = Point3d( WD.MID_REF - DeltaX, b3Tab:getDimY() - DeltaY, DeltaZ)
    elseif sOrigCorner == 'BM' then
       nCorner = MCH_CR.BR
-      OrigOnTab = Point3d( WD.MID_REF - abs( DeltaX), abs( DeltaY), DeltaZ)
+      OrigOnTab = Point3d( WD.MID_REF - DeltaX, DeltaY, DeltaZ)
    elseif sOrigCorner == 'TN' then
       nCorner = MCH_CR.TL
-      OrigOnTab = Point3d( WD.NEW_REF + abs( DeltaX), b3Tab:getDimY() - abs( DeltaY), DeltaZ)
+      OrigOnTab = Point3d( WD.NEW_REF + DeltaX, b3Tab:getDimY() - DeltaY, DeltaZ)
    elseif sOrigCorner == 'BN' then
       nCorner = MCH_CR.BL
-      OrigOnTab = Point3d( WD.NEW_REF + abs( DeltaX), abs( DeltaY), DeltaZ)
+      OrigOnTab = Point3d( WD.NEW_REF + DeltaX, DeltaY, DeltaZ)
    end
 
    return sOrigCorner, nCorner, OrigOnTab
diff --git a/UpdateLog.txt b/UpdateLog.txt
index 95a2f26..5745304 100644
--- a/UpdateLog.txt
+++ b/UpdateLog.txt
@@ -1,7 +1,11 @@
            ==== Wall Update Log ====
 
+Versione 3.1f2 (25/06/2026)
+- Modif : Ora si accettano offset in negativo per posizionamento pezzo su tavola
+- Modif : Il Q09 aggiunto in versione 3.1f1 viene sostituito con il parametro da OFFSET -> USE_CONVENTIONAL_SAWING
+
 Versione 3.1f1 (18/06/2026)
-- Modif :  Aggiunto Q09=1 che inverte lato testa e imposta conventional milling durante i tagli
+- Modif :  Aggiunto Q09=1 che inverte lato testa e imposta conventional milling durante i tagli (DEPRECATO)
 
 Versione 3.1d2 (23/04/2026)
 - Modif : Tutte le forature vengono ordinate per diametro decrescente
diff --git a/Version.lua b/Version.lua
index 69a019c..de2127c 100644
--- a/Version.lua
+++ b/Version.lua
@@ -2,5 +2,5 @@
 -- Gestione della versione di Wall
 
 NAME = 'Wall'
-VERSION = '3.1f1'
+VERSION = '3.1f2'
 MIN_EXE = '3.1c1'