help out a newbie?

[toolndie7]

Im playing around with this crappy little 3 axis at work. Its running off artsoft mach2 if that means anything. Anyway, Im trying to engrave multiple parts in a fixture and I need some help modifying my G-code. Here is a sample program that does just one part, I would like to make a move in 'X' re zero and re run the job and so on and so on. Any help would be much appreciated as I am way out of date with g-code.

Thanks
Brian


G00 G49 G40 G17 G80 G50 G90
G20
M03 S0
G00 Z0.05
G00 G90 X0Y0
F10
G00 Z0.05
G00 X-0.060489 Y0
G00 Z-0.01
G01 X-0.075 Y0.014511
G01 X0 Y0.014511
G00 Z0.05
G00 Z0.05
G00 X-0.041091 Y0.03238275
G00 Z-0.01
G01 X-0.041091 Y0.04752075
G02 X-0.036381 Y0.057498 I-0.020283825 J0.0437985
G02 X-0.00644925 Y0.05766975 I-0.021341325 J0.04469865
G02 X-0.00421275 Y0.02619 I-0.026222775 J0.040445925
G02 X-0.03552 Y0.0229215 I-0.021184575 J0.037182525
G02 X-0.04109025 Y0.03238275 I-0.019832325 J0.0385275
G01 X-0.04109025 Y0.04752075
G03 X-0.0453255 Y0.056466 I-0.05802735 J0.044976825
G03 X-0.06872025 Y0.05663775 I-0.0571017 J0.045814575
G03 X-0.069408 Y0.02550225 I-0.05159505 J0.04068405
G03 X-0.0453255 Y0.02429775 I-0.0567993 J0.036248175
G03 X-0.04109025 Y0.03238275 I-0.055276875 J0.03466215
G00 Z0.05
G00 Z0.05
G00 X-0.0375 Y0.073413
G00 Z-0.01
G01 X-0.0375 Y0.110913
G00 Z0.05
G00 Z0.05
G00 X-0.0609255 Y0.1179255
G00 Z-0.01
G02 X-0.07397025 Y0.130221 I-0.0574284 J0.134702775
G02 X-0.0722595 Y0.14910975 I-0.04762995 J0.137357325
G02 X-0.03906525 Y0.151296 I-0.055049625 J0.140897625
G03 X-0.0137295 Y0.12266925 I0.069793575 J0.22211475
G03 X0 Y0.11792475 I-6.73575000000003E-04 J0.138214125
G01 X0 Y0.15837375
G00 Z0.05
G00 Z0.05
G00 X-0.020625 Y0.20544
G00 Z-0.01
G02 X-0.020625 Y0.16419 I-0.020625 J0.184815
G01 X-0.054375 Y0.16419
G02 X-0.054375 Y0.20544 I-0.054375 J0.184815
G01 X-0.020625 Y0.20544
G00 Z0.05
G00 X0 Y0.207891
M30
(end of file )

[CNCRim]

first thing you need to fix is round up/down to place after decimal point. And if you want to rezero the X, know you can do that with Cimco or any software let you to do simple math like transform, but you need to spend money. The cheapest way I know how is if you have Microsoft Word you can write a simple program that will do that for you.

[forqnc]

Do you mean move 'X' from home then set a temporary 0 at that point, if so, on an old Thermwood, we have here, we move X then a G92 X0 does it.

[Geof]

Im playing around with this crappy little 3 axis at work. Its running off artsoft mach2 if that means anything. Anyway, Im trying to engrave multiple parts in a fixture and I need some help modifying my G-code. Here is a sample program that does just one part, I would like to make a move in 'X' re zero and re run the job and so on and so on. Any help would be much appreciated as I am way out of date with g-code.

Thanks
Brian

Does the system you are using allow you to call a subroutine or a sub program? These are the M97 for subroutine and M98 for subprogram commands which include a target for the call. M97 P2000 tells the controller to look for line N2000 in the current program and start from there; M98 PO2000 tells the controller to look for a programe named O2000 and run that program. Note the 'P' may be replaced by an 'O' or some other letter.

If your system can handle M97 the way you can repeat the program at many locations is establish work coordinates at these locations, select the work coordinate and then do the subroutine call. You would make the first location G54, the next G55, etc and your program would be something like this:

(Some stuff)
G54
M97 P2000
G55
M97 P2000
G56
M97 P2000
etc
etc
M30
N2000
(Your program)
M99

The M99 command tells the controller to go back to the line immediately below the line with the M97.

If you are using the M98 then you have two programs; one with all the M98 commands and the other is your program.

You are using only one tool so this is a simple way to do it. If you are using multiple tools you need to break your program up into subroutines or sub programs for each tool.

Find out if your system can handle these commands and how the target is specified and if you have more questions post them.

[Kiwi]

Newtexas2006
Are you suggesting to write a macro in microsoft word to add a value to all the X figures? I have never used word for this purpose. Thanks.

[ger21]

Use work offsets like Geof said. G54, G55, G56.......