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5 changed files with 146 additions and 18 deletions
+17 -1
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@@ -443,7 +443,7 @@ local function CalcHeadTailMachBeforeIntersDrillings( vProc, b3Raw)
for i = 1, #vProc do for i = 1, #vProc do
local Proc = vProc[i] local Proc = vProc[i]
if Proc.Box and not Proc.Box:isEmpty() then if Proc.Box and not Proc.Box:isEmpty() then
if Proc.Fct == 1 and BL.IsFeatureCuttingEntireSection( Proc.Box, b3Raw:getDimY(), b3Raw:getDimZ()) and ( Proc.Head or Proc.Tail) and Proc.Prc ~= 350 then if Proc.Fct == 1 and ( BL.IsFeatureCuttingEntireSection( Proc.Box, b3Raw:getDimY(), b3Raw:getDimZ()) or Cut.Identify( Proc)) and ( Proc.Head or Proc.Tail) and Proc.Prc ~= 350 then
if Proc.Head and Proc.Box:getCenter():getX() < dHeadX then if Proc.Head and Proc.Box:getCenter():getX() < dHeadX then
dHeadX = Proc.Box:getCenter():getX() dHeadX = Proc.Box:getCenter():getX()
nHeadId = Proc.Id nHeadId = Proc.Id
@@ -915,6 +915,22 @@ local function ReorderFeatureWithDependency( vProc)
table.insert( vProc, nRefIndex, table.remove( vProc, i)) table.insert( vProc, nRefIndex, table.remove( vProc, i))
i = max( nRefIndex - 1, 1) i = max( nRefIndex - 1, 1)
end end
elseif Drill.Identify( vProc[i]) and vProc[i].Dependency and vProc[i].Dependency.ExecAfter and vProc[i].Dependency.ExecAfter.Id then
local nRefId = vProc[i].Dependency.ExecAfter.Id
local nRefIndex
for j = 1, #vProc do
if i ~= j and vProc[j].Id == nRefId then
nRefIndex = j
break
end
end
-- se il processo deve stare dopo, ma ora è prima
if nRefIndex and nRefIndex > i then
table.insert( vProc, nRefIndex, table.remove( vProc, i))
i = max( nRefIndex - 1, 1)
end
end end
i = i + 1 i = i + 1
end end
+7 -2
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@@ -348,6 +348,11 @@ function ProcessDrill.Make( Proc, nPhase, nRawId, nPartId, dCurrOvmH)
if EgtGetInfo( Proc.Id, 'Q04', 'i') == 1 then if EgtGetInfo( Proc.Id, 'Q04', 'i') == 1 then
return FreeContour.Make( Proc, nPhase, nRawId, nPartId, dCurrOvmH) return FreeContour.Make( Proc, nPhase, nRawId, nPartId, dCurrOvmH)
end end
-- verifico se macchina configurata per avere le nuove svuotature in doppio
local sIniMachFile = EgtGetCurrMachineDir()..'\\'..EgtGetCurrMachineName()..'.ini'
local dPockDoubleNTActive = ( EgtGetStringFromIni( 'Machinings', 'PocketingDoubleNT', '0', sIniMachFile) == '1')
-- default per costanti -- default per costanti
BD.DRILL_VX_MAX_ANGLEDRILL = ( BD.DRILL_VX_MAX_ANGLEDRILL or 0.928) BD.DRILL_VX_MAX_ANGLEDRILL = ( BD.DRILL_VX_MAX_ANGLEDRILL or 0.928)
-- ingombro del pezzo -- ingombro del pezzo
@@ -653,7 +658,7 @@ function ProcessDrill.Make( Proc, nPhase, nRawId, nPartId, dCurrOvmH)
local dLastStepDepth local dLastStepDepth
if Proc.Double and Proc.Double > 0 then if Proc.Double and Proc.Double > 0 then
if ( sType == 'Pocket_AT' or sType == 'Pocket') then if ( sType == 'Pocket_AT' or sType == 'Pocket') then
if bOpen then if not dPockDoubleNTActive and bOpen then
local dReduceDepth = MIRROR_POCKETS_MIN_DISTANCE / 2 + 10 local dReduceDepth = MIRROR_POCKETS_MIN_DISTANCE / 2 + 10
dLastStepDepth = dDepth + dReduceDepth dLastStepDepth = dDepth + dReduceDepth
dDepth = dDepth - dReduceDepth dDepth = dDepth - dReduceDepth
@@ -723,7 +728,7 @@ function ProcessDrill.Make( Proc, nPhase, nRawId, nPartId, dCurrOvmH)
return false, sWarn return false, sWarn
else else
-- se DrillPocket passante in doppio si fa lavorazione aggiuntiva dell'ultimo step -- se DrillPocket passante in doppio si fa lavorazione aggiuntiva dell'ultimo step
if Proc.Double and Proc.Double > 0 and ( sType == 'Pocket_AT' or sType == 'Pocket') and bOpen then if not dPockDoubleNTActive and Proc.Double and Proc.Double > 0 and ( sType == 'Pocket_AT' or sType == 'Pocket') and bOpen then
if dLastStepDepth > dMaxDepth + 10 * GEO.EPS_SMALL then if dLastStepDepth > dMaxDepth + 10 * GEO.EPS_SMALL then
sMyWarn = 'Warning in drill pocket last step: depth (' .. EgtNumToString( dLastStepDepth, 1) .. ') bigger than max tool depth (' .. EgtNumToString( dMaxDepth, 1) .. ')' sMyWarn = 'Warning in drill pocket last step: depth (' .. EgtNumToString( dLastStepDepth, 1) .. ') bigger than max tool depth (' .. EgtNumToString( dMaxDepth, 1) .. ')'
return false, sMyWarn return false, sMyWarn
+109 -10
View File
@@ -1004,7 +1004,7 @@ end
--------------------------------------------------------------------- ---------------------------------------------------------------------
-- Lavorazione con fresa -- Lavorazione con fresa
--------------------------------------------------------------------- ---------------------------------------------------------------------
local function MakeOneFaceByMill( Proc, nPhase, nRawId, nPartId) local function MakeOneFaceByMill( Proc, nPhase, nRawId, nPartId, nForcedFacInd, nSideInd)
-- recupero l'ingombro del grezzo di appartenenza -- recupero l'ingombro del grezzo di appartenenza
local b3Raw = EgtGetRawPartBBox( nRawId) local b3Raw = EgtGetRawPartBBox( nRawId)
-- recupero l'ingombro della trave -- recupero l'ingombro della trave
@@ -1015,13 +1015,16 @@ local function MakeOneFaceByMill( Proc, nPhase, nRawId, nPartId)
return false, sErr return false, sErr
end end
-- verifico il numero di facce della tacca -- verifico il numero di facce della tacca
if not nForcedFacInd then
assert( ( Proc.Fct == 1), 'Error : MakeOneFaceByMill in LapJoint with ' .. tostring( Proc.Fct) .. ' faces') assert( ( Proc.Fct == 1), 'Error : MakeOneFaceByMill in LapJoint with ' .. tostring( Proc.Fct) .. ' faces')
nForcedFacInd = 0
end
-- dati della faccia -- dati della faccia
local ptC, vtN = EgtSurfTmFacetCenter( Proc.Id, 0, GDB_ID.ROOT) local ptC, vtN = EgtSurfTmFacetCenter( Proc.Id, nForcedFacInd, GDB_ID.ROOT)
-- verifico se orientata verso l'alto -- verifico se orientata verso l'alto
local bUp = ( vtN:getZ() >= BD.NZ_MINA) local bUp = ( vtN:getZ() >= BD.NZ_MINA)
-- scelta faccia da lavorare -- scelta faccia da lavorare
local nFacInd = 0 local nFacInd = nForcedFacInd
-- recupero la lavorazione -- recupero la lavorazione
local sMilling = ML.FindMilling( 'BirdsMouth') local sMilling = ML.FindMilling( 'BirdsMouth')
if not sMilling then if not sMilling then
@@ -1029,6 +1032,16 @@ local function MakeOneFaceByMill( Proc, nPhase, nRawId, nPartId)
EgtOutLog( sErr) EgtOutLog( sErr)
return false, sErr return false, sErr
end end
local dTDiam = 50
local dMaxMat = 0
if EgtMdbSetCurrMachining( sMilling) then
local sTuuid = EgtMdbGetCurrMachiningParam( MCH_MP.TUUID)
if EgtTdbSetCurrTool( EgtTdbGetToolFromUUID( sTuuid) or '') then
dTDiam = EgtTdbGetCurrToolParam( MCH_TP.DIAM) or dTDiam
dMaxMat = EgtTdbGetCurrToolParam( MCH_TP.MAXMAT) or dMaxMat
end
end
dTDiam = EgtTdbGetCurrToolParam( MCH_TP.DIAM) or dTDiam
-- inserisco la lavorazione di fresatura -- inserisco la lavorazione di fresatura
local sName = 'Mill_' .. ( EgtGetName( Proc.Id) or tostring( Proc.Id)) local sName = 'Mill_' .. ( EgtGetName( Proc.Id) or tostring( Proc.Id))
local nMchFId = EgtAddMachining( sName, sMilling) local nMchFId = EgtAddMachining( sName, sMilling)
@@ -1039,8 +1052,17 @@ local function MakeOneFaceByMill( Proc, nPhase, nRawId, nPartId)
end end
-- aggiungo geometria -- aggiungo geometria
EgtSetMachiningGeometry( {{ Proc.Id, nFacInd}}) EgtSetMachiningGeometry( {{ Proc.Id, nFacInd}})
-- imposto uso faccia e lato correzione -- imposto uso faccia e lato correzione se forzate da fuori forzo lavorazione della faccia
if vtN:getX() > 0 then if nSideInd and nForcedFacInd then
EgtSetMachiningParam( MCH_MP.FACEUSE, MCH_MILL_FU.NONE)
EgtSetMachiningParam( MCH_MP.ENDADDLEN, -dTDiam / 2)
EgtSetMachiningParam( MCH_MP.STARTADDLEN, -dTDiam / 2)
local sUserNotes = EgtGetMachiningParam( MCH_MP.USERNOTES) or ''
sUserNotes = EgtSetValInNotes( sUserNotes, 'EdgesFaceUse', EgtNumToString( nSideInd))
EgtSetMachiningParam( MCH_MP.USERNOTES, sUserNotes)
EgtSetMachiningParam( MCH_MP.LIPERP, dTDiam / 2)
EgtSetMachiningParam( MCH_MP.LOPERP, dTDiam / 2)
elseif vtN:getX() > 0 then
EgtSetMachiningParam( MCH_MP.FACEUSE, EgtIf( bUp, MCH_MILL_FU.ORTHO_LEFT, MCH_MILL_FU.PARAL_LEFT)) EgtSetMachiningParam( MCH_MP.FACEUSE, EgtIf( bUp, MCH_MILL_FU.ORTHO_LEFT, MCH_MILL_FU.PARAL_LEFT))
else else
EgtSetMachiningParam( MCH_MP.FACEUSE, EgtIf( bUp, MCH_MILL_FU.ORTHO_RIGHT, MCH_MILL_FU.PARAL_RIGHT)) EgtSetMachiningParam( MCH_MP.FACEUSE, EgtIf( bUp, MCH_MILL_FU.ORTHO_RIGHT, MCH_MILL_FU.PARAL_RIGHT))
@@ -4767,7 +4789,7 @@ local function MakeByPockets( Proc, nPhase, nRawId, nPartId, nChamfer, dDepthCha
end end
end end
end end
return 1, sWarn, dDimMin, dDimMax, dDepth, vtOrtho, nLundIdFace, dDiamTool, bDoubleSide, nPathInt, nSurfInt, bOneShot, bMillDown, nFirstMachId return 1, sWarn, dDimMin, dDimMax, dDepth, vtOrtho, nLundIdFace, dDiamTool, bDoubleSide, nPathInt, nSurfInt, bOneShot, bMillDown, nFirstMachId, nil, sPocketing
end end
end end
end end
@@ -7511,15 +7533,35 @@ local function MakeMoreFaces( Proc, nPhase, nRawId, nPartId, dOvmHead, bSinglePa
end end
-- provo con contornatura -- provo con contornatura
local dDiamTool = 20 local dDiamTool = 20
local nChoosenFacInd = nFacInd2
local dChoosenFacElev = dFacElev2
if bIsL then if bIsL then
local bOk, sErr local bOk, sErr
bOk, sWarn, dDiamTool = MakeByMill( Proc, nPhase, nRawId, nPartId, nFacInd, rfFac, dH, dV, dFacElev, dCollSic, true, sMilling, nFacInd2, dFacElev2) bOk, sWarn, dDiamTool = MakeByMill( Proc, nPhase, nRawId, nPartId, nFacInd, rfFac, dH, dV, dFacElev, dCollSic, true, sMilling, nFacInd2, dFacElev2)
if not bOk then return bOk, sWarn end if not bOk then return bOk, sWarn end
else
-- provo ancora con la pocketing dell'altra faccia
local sPocketing = ML.FindPocketing( sMchFind, dDiam, dFacElev + dCollSic)
if sPocketing then
nChoosenFacInd = nFacInd
dChoosenFacElev = dFacElev
local Edges = BL.GetEdgesInfo( Proc, Proc.Face[nFacInd+1])
local nSideInd
for i = 1, #Edges do
if Edges[i].AdjacentFaceId == nFacInd2 then
nSideInd = i - 1
break
end
end
-- se pocketing ok forza facet e spigolo di lavoro
bOk, sWarn = MakeOneFaceByMill( Proc, nPhase, nRawId, nPartId, nFacInd2, nSideInd)
if not bOk then return bOk, sWarn end
else else
local sErr = 'Error : Impossible mill special LapJoint' local sErr = 'Error : Impossible mill special LapJoint'
EgtOutLog( sErr) EgtOutLog( sErr)
return false, sErr return false, sErr
end end
end
-- inserisco la lavorazione di svuotatura -- inserisco la lavorazione di svuotatura
local sName = 'Pock_' .. ( EgtGetName( Proc.Id) or tostring( Proc.Id)) local sName = 'Pock_' .. ( EgtGetName( Proc.Id) or tostring( Proc.Id))
local nMchFId = EgtAddMachining( sName, sPocketing) local nMchFId = EgtAddMachining( sName, sPocketing)
@@ -7529,7 +7571,7 @@ local function MakeMoreFaces( Proc, nPhase, nRawId, nPartId, dOvmHead, bSinglePa
return false, sErr return false, sErr
end end
-- aggiungo geometria -- aggiungo geometria
EgtSetMachiningGeometry( {{ Proc.Id, nFacInd2}}) EgtSetMachiningGeometry( {{ Proc.Id, nChoosenFacInd}})
-- imposto uso faccia -- imposto uso faccia
EgtSetMachiningParam( MCH_MP.FACEUSE, MCH_MILL_FU.ORTHO_CONT) EgtSetMachiningParam( MCH_MP.FACEUSE, MCH_MILL_FU.ORTHO_CONT)
-- imposto posizione braccio porta testa -- imposto posizione braccio porta testa
@@ -7544,7 +7586,7 @@ local function MakeMoreFaces( Proc, nPhase, nRawId, nPartId, dOvmHead, bSinglePa
end end
-- imposto elevazione -- imposto elevazione
local sUserNotes = EgtGetMachiningParam( MCH_MP.USERNOTES) or '' local sUserNotes = EgtGetMachiningParam( MCH_MP.USERNOTES) or ''
sUserNotes = EgtSetValInNotes( sUserNotes, 'MaxElev', EgtNumToString( dFacElev2, 1)) sUserNotes = EgtSetValInNotes( sUserNotes, 'MaxElev', EgtNumToString( dChoosenFacElev, 1))
EgtSetMachiningParam( MCH_MP.USERNOTES, sUserNotes) EgtSetMachiningParam( MCH_MP.USERNOTES, sUserNotes)
-- eseguo -- eseguo
if not ML.ApplyMachining( true, false) then if not ML.ApplyMachining( true, false) then
@@ -8068,7 +8110,7 @@ local function MakeMoreFaces( Proc, nPhase, nRawId, nPartId, dOvmHead, bSinglePa
bSetOpenBorders = true bSetOpenBorders = true
end end
nOk, sErr, dDimMin, dDimMax, dDepth, vtOrtho, nLundIdFace, dDiamTool, bDoubleSide, nPathInt, nSurfInt, bOneShot, bMillDown, nFirstMachId, nOk, sErr, dDimMin, dDimMax, dDepth, vtOrtho, nLundIdFace, dDiamTool, bDoubleSide, nPathInt, nSurfInt, bOneShot, bMillDown, nFirstMachId,
bOrthoFaces = MakeByPockets( Proc, nPhase, nRawId, nPartId, nChamfer, dDepthCham, nAddGrpId, sMyMchFind, bIs3Faces, b3Solid, bOrthoFacesMaster, bMillDown, bSetOpenBorders, bIsU, bIsL) bOrthoFaces, sPocketing = MakeByPockets( Proc, nPhase, nRawId, nPartId, nChamfer, dDepthCham, nAddGrpId, sMyMchFind, bIs3Faces, b3Solid, bOrthoFacesMaster, bMillDown, bSetOpenBorders, bIsU, bIsL)
if nOk == -3 then if nOk == -3 then
bTryWithBlades = true bTryWithBlades = true
elseif nOk == -2 then elseif nOk == -2 then
@@ -8102,6 +8144,7 @@ local function MakeMoreFaces( Proc, nPhase, nRawId, nPartId, dOvmHead, bSinglePa
end end
-- se abilitato dal parametro Q inserisco pulitura spigoli o contorno con fresa più piccola -- se abilitato dal parametro Q inserisco pulitura spigoli o contorno con fresa più piccola
local nContourSmallTool = EgtGetInfo( Proc.Id, Q_CONTOUR_SMALL_TOOL, 'i') or 0 local nContourSmallTool = EgtGetInfo( Proc.Id, Q_CONTOUR_SMALL_TOOL, 'i') or 0
local nCleanCorner = EgtGetInfo( Proc.Id, Q_CLEAN_CORNER, 'i') or 0
if nContourSmallTool > 0 then if nContourSmallTool > 0 then
local bOk, sWarn2 = MakeRoundCleanCornerOrContour( Proc, nPhase, nRawId, nPartId, b3Raw, local bOk, sWarn2 = MakeRoundCleanCornerOrContour( Proc, nPhase, nRawId, nPartId, b3Raw,
nFacInd, nAddGrpId, dDiamTool, nContourSmallTool, bMillDown, nFacInd, nAddGrpId, dDiamTool, nContourSmallTool, bMillDown,
@@ -8113,6 +8156,43 @@ local function MakeMoreFaces( Proc, nPhase, nRawId, nPartId, dOvmHead, bSinglePa
sWarn = EgtIf( #sWarn > 0, sWarn .. '\n' .. sWarn2, sWarn2) sWarn = EgtIf( #sWarn > 0, sWarn .. '\n' .. sWarn2, sWarn2)
end end
end end
-- se richiesta pulizia spigoli con fresa a V
if nCleanCorner > 0 then
local dMaxToolMaterial = 0
if EgtMdbSetCurrMachining( sPocketing) then
local sTuuidPk = EgtMdbGetCurrMachiningParam( MCH_MP.TUUID)
if EgtTdbSetCurrTool( EgtTdbGetToolFromUUID( sTuuidPk) or '') then
dMaxToolMaterial = EgtTdbGetCurrToolParam( MCH_TP.MAXMAT) or dMaxToolMaterial
end
end
local nNewProc
local vtSpec = vtN
if not ( Proc.Fct == 3 and bIsU) then
nNewProc = RemoveBottomFaceAndReorder( Proc, nAddGrpId, nFacInd, vtN)
-- se U passante ricavo vettore da "sopra" con componente Z forzata in positivo
else
nNewProc = EgtCopyGlob( Proc.Id, nAddGrpId) or GDB_ID.NULL
local nNumFacet = EgtSurfTmFacetCount( nNewProc)
-- vettore normale ad una delle facce adiacenti
local vtOther = EgtSurfTmFacetNormVersor( Proc.Id, Proc.Face[nFacInd+1].Adjacencies[1], GDB_ID.ROOT)
-- ricavo vettore verso l'alto (simulo faccia di fondo)
vtSpec = vtN ^ vtOther
-- se negativo in Z forzo positivo
if vtSpec:getZ() < 0 then
vtSpec:mirror(vtSpec)
end
ReorderFaces( nNewProc, nNumFacet, vtSpec)
-- normale della lavorazione clean corner
vtN = vtSpec
end
local vFace, dDepth = GetFacesData( nNewProc, dDiamTool, dMaxToolMaterial, ( dDiamTool/2), nAddGrpId, Proc.PartId, vtN)
local bCleanCornerOk, sCleanCornerWarn = AddMillCorner( vFace, Proc, dDiamTool, nAddGrpId, nNewProc, vtN)
if not bCleanCornerOk then return false, sCleanCornerWarn end
if sCleanCornerWarn then
if not sWarn then sWarn = '' end
sWarn = EgtIf( #sWarn > 0, sWarn .. '\n' .. sCleanCornerWarn, sCleanCornerWarn)
end
end
end end
end end
bOk = true bOk = true
@@ -8328,7 +8408,26 @@ local function MakeMoreFaces( Proc, nPhase, nRawId, nPartId, dOvmHead, bSinglePa
-- se richiesta pulizia spigoli con fresa a V -- se richiesta pulizia spigoli con fresa a V
if nCleanCorner > 0 then if nCleanCorner > 0 then
local dThElev = dToolThDiameter / 2 * sqrt( vtN:getX() * vtN:getX() + vtN:getY() * vtN:getY()) local dThElev = dToolThDiameter / 2 * sqrt( vtN:getX() * vtN:getX() + vtN:getY() * vtN:getY())
local nNewProc = RemoveBottomFaceAndReorder( Proc, nAddGrpId, nFacInd, vtN) local nNewProc
local vtSpec = vtN
if not ( Proc.Fct == 3 and bIsU) then
nNewProc = RemoveBottomFaceAndReorder( Proc, nAddGrpId, nFacInd, vtN)
-- se U passante ricavo vettore da "sopra" con componente Z forzata in positivo
else
nNewProc = EgtCopyGlob( Proc.Id, nAddGrpId) or GDB_ID.NULL
local nNumFacet = EgtSurfTmFacetCount( nNewProc)
-- vettore normale ad una delle facce adiacenti
local vtOther = EgtSurfTmFacetNormVersor( Proc.Id, Proc.Face[nFacInd+1].Adjacencies[1], GDB_ID.ROOT)
-- ricavo vettore verso l'alto (simulo faccia di fondo)
vtSpec = vtN ^ vtOther
-- se negativo in Z forzo positivo
if vtSpec:getZ() < 0 then
vtSpec:mirror(vtSpec)
end
ReorderFaces( nNewProc, nNumFacet, vtSpec)
-- normale della lavorazione clean corner
vtN = vtSpec
end
local vFace, dDepth = GetFacesData( nNewProc, dToolDiameter, dMaxToolMaterial, ( dToolDiameter/2), nAddGrpId, Proc.PartId, vtN) local vFace, dDepth = GetFacesData( nNewProc, dToolDiameter, dMaxToolMaterial, ( dToolDiameter/2), nAddGrpId, Proc.PartId, vtN)
local bCleanCornerOk, sCleanCornerWarn = AddMillCorner( vFace, Proc, dToolDiameter, nAddGrpId, nNewProc, vtN) local bCleanCornerOk, sCleanCornerWarn = AddMillCorner( vFace, Proc, dToolDiameter, nAddGrpId, nNewProc, vtN)
if not bCleanCornerOk then return false, sCleanCornerWarn end if not bCleanCornerOk then return false, sCleanCornerWarn end
+8
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@@ -1,5 +1,13 @@
==== Beam Update Log ==== ==== Beam Update Log ====
Versione 3.1f3 (25/06/2026)
- Modif : LapJoint - migliorata gestione BirdsMouth con più di 3 facce
- Modif : Per identificare feature di testa, oltre che verificare se sia troncante, si controlla anche la feature taglio
- Added : LapJoint - CleanCorner per tasche a 3 facce a U
Versione 3.1f2 (18/06/2026)
- Added : Gestione svuotature in doppio tipo NT
Versione 3.1f1 (17/06/2026) Versione 3.1f1 (17/06/2026)
- Added : Tagli per dividere il cubetto in caso sia troppo lungo - Added : Tagli per dividere il cubetto in caso sia troppo lungo
- Modif : DepthChamfer su feature Mortase (050 e 051) cambio di Q. Prima era Q02, ora è Q01 - Modif : DepthChamfer su feature Mortase (050 e 051) cambio di Q. Prima era Q02, ora è Q01
+1 -1
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@@ -2,5 +2,5 @@
-- Gestione della versione di Beam -- Gestione della versione di Beam
NAME = 'Beam' NAME = 'Beam'
VERSION = '3.1f1' VERSION = '3.1f3'
MIN_EXE = '3.1b1' MIN_EXE = '3.1b1'