First time in this forum so the post went off quickly.
New try
So Hi.
The issue is that the Z-value in the G54 is changed when I change tool by the ATC.
I strongly think it is due to the M6, but I'm not (yet) understanding the code in the M6 well enough.
This is what I do:
I use Mach3 on a router with ATC
I use Fusion 360 for the CAD/CAM and post processing
Example when the issue occures:
I have designed a part using 2 tools, T1 and T3, the G-code is below.
I set the tool offset by touching the top of the stock with both T1 and T3.
Positive values are used on the tool offsets.
My Z-axis is set up to be positive going up from the table.
I set the G54 at the top of the stock. My Z-value is always negative, as an example -115mm.
When I start the program I have the T1 in the spindle, and I have choosen tool 1 in Mach3
It machines fine.
When the machine goes to change the tool I see live while looking at the G54 that the Z-value is changed.
Below is the G-code and I have indicated the precise line when the change in Z in the G54 occures
The new Z-value seems to be very random, it can be a reasonable -30 but also a stupid +150.
As said before that I think it is the M6 code causing the problem, but as the new Z-value seems random I wonder if it might be something else.
Example my computer seems slow or something else is wrong? I say that because when I look on the DRO and push the button switch between Machine coordinates and Local coordinates it is not updating the position XYZ always.
Long message but please help!!!
Below the G-code and the M6 start and stop.
G-code:
(1001)
(T1 D=8. CR=0. - ZMIN=-20. - FLAT END MILL)
(T3 D=5. CR=0. - ZMIN=-20. - FLAT END MILL)
G90 G94 G91.1 G40 G49 G17
G21
(2D CONTOUR2)
M5
T1 M6
S5000 M3
G54
G0 X-21.415 Y-1.669
G43 Z15. H0
Z5.
G1 Z1. F333.
Z-19.2
X-21.408 Z-19.304 F1000.
X-21.388 Y-1.67 Z-19.407
X-21.354 Z-19.506
X-21.308 Y-1.671 Z-19.6
X-21.25 Y-1.673 Z-19.687
X-21.181 Y-1.674 Z-19.766
X-21.102 Y-1.676 Z-19.835
X-21.015 Y-1.677 Z-19.893
X-20.921 Y-1.679 Z-19.939
X-20.822 Y-1.681 Z-19.973
X-20.72 Y-1.683 Z-19.993
X-20.615 Y-1.686 Z-20.
X-19.815 Y-1.702
G3 X-18.999 Y-0.918 I0.016 J0.8
G2 X-17.646 Y2. I3.999 J-0.082
X-19. Y5. I2.646 J3.
G1 Y15.
G2 X-15. Y19. I4. J0.
G1 X15.
G2 X19. Y15. I0. J-4.
G1 Y-15.
G2 X15. Y-19. I-4. J0.
G1 X-15.
G2 X-19. Y-15. I0. J4.
G1 Y-1.
X-18.999 Y-0.918
G3 X-19.783 Y-0.102 I-0.8 J0.016
G1 X-20.583 Y-0.086
X-20.687 Y-0.084 Z-19.993
X-20.79 Y-0.082 Z-19.973
X-20.889 Y-0.08 Z-19.939
X-20.982 Y-0.078 Z-19.893
X-21.069 Y-0.076 Z-19.835
X-21.148 Y-0.074 Z-19.766
X-21.217 Y-0.073 Z-19.687
X-21.275 Y-0.072 Z-19.6
X-21.321 Y-0.071 Z-19.506
X-21.355 Y-0.07 Z-19.407
X-21.376 Z-19.304
X-21.382 Z-19.2
G0 Z15.
(2D CONTOUR3)
M5
T3 M6
S5000 M3 The G54 change in Z occures on this line!!!
G54
G0 X-17.161 Y1.597
G43 Z15. H0
Z5.
G1 Z1. F333.
Z-19.5
X-17.156 Y1.603 Z-19.587 F1000.
X-17.141 Y1.62 Z-19.671
X-17.118 Y1.648 Z-19.75
X-17.086 Y1.687 Z-19.821
X-17.047 Y1.735 Z-19.883
X-17.001 Y1.79 Z-19.933
X-16.951 Y1.851 Z-19.97
X-16.898 Y1.915 Z-19.992
X-16.842 Y1.982 Z-20.
X-16.524 Y2.368
G3 X-16.591 Y3.072 I-0.386 J0.318
G2 X-17.5 Y5. I1.591 J1.928
G1 Y15.
G2 X-15. Y17.5 I2.5 J0.
G1 X15.
G2 X17.5 Y15. I0. J-2.5
G1 Y-15.
G2 X15. Y-17.5 I-2.5 J0.
G1 X-15.
G2 X-17.5 Y-15. I0. J2.5
G1 Y-1.
G2 X-15. Y1.5 I2.5 J0.
G1 X-0.418
G3 Y2.5 I0. J0.5
G1 X-15.
G2 X-16.591 Y3.072 I0. J2.5
G3 X-17.295 Y3.005 I-0.318 J-0.386
G1 X-17.614 Y2.619
X-17.669 Y2.552 Z-19.992
X-17.722 Y2.487 Z-19.97
X-17.773 Y2.426 Z-19.933
X-17.818 Y2.371 Z-19.883
X-17.857 Y2.324 Z-19.821
X-17.889 Y2.285 Z-19.75
X-17.913 Y2.257 Z-19.671
X-17.927 Y2.239 Z-19.587
X-17.932 Y2.233 Z-19.5
G0 Z15.
M30
My M6 are looking like this:
M6END
EM The default script here moves the tool back to m6start if any movement has occured during the tool change..
x = GetToolChangeStart( 0 )
y = GetToolChangeStart( 1 )
z = GetToolChangeStart( 2 )
a = GetToolChangeStart( 3 )
b = GetToolChangeStart( 4 )
c = GetToolChangeStart( 5 )
if(IsSafeZ() = 1) Then
SafeZ = GetSafeZ()
if SafeZ > z then StraightTraverse x, y,SafeZ, a, b, c
StraightFeed x, y, z , a, b, c
else
Code"G00 X" & x & "Y" & y
end if
M6START
chengdu xhc technology ,all right reserved |
'please don't modify these code if you don't know what you doing |
'
Declare Function ChangeTool Lib ".\Plugins\NcEther-8ts" () As Integer
dim newtool
Dim XWork, YWork,ZWork
dim chanok
Sub Main
newtool=GetSelectedTool()
OldTool = GetOEMDRO (824)
If newtool = OldTool Then
Message"Tool No Change"
If Not FileName() = "No File Loaded." Then
ActivateSignal(Output6)
end if
Exit Sub
End If
DoSpinStop() 'stop spindle
SetUserDro(1384,newtool)
XWork = GetOEMDRO(800) ' Get Current X Work Coordinate
YWork = GetOEMDRO(801) ' Get Current Y Work Coordinate
ZWork = GetOEMDRO(802)
Call ChangeTool()
chanok=GetUserDro(1338)
If(chanok>2) Then
SetCurrentTool(newtool)
end if
SetUserDro(1338,1)
If Not FileName() = "No File Loaded." Then
ActivateSignal(Output6)
Sleep(100)
DoSpinCW()
'Code "G0 X" & XWork & " Y" & YWork
'Sleep(500)
'While IsMoving()
'sleep(50)
'Wend
Code"G0Z"& ZWork
Sleep(500)
While IsMoving()
sleep(50)
Wend
DoOEMButton(1000) ' Cycle Start
end if
End Sub
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