[mrpeja]

Hi,
I have some g-code files written for bigger machine.
I want to subtract the same number from each X coordinate in the file, so the code will fit into my machine.
Doing this manually is a enormous job.
Does someone knew how to do this automatically?
Here is an example in attachment.

Any help will be appreciated.
mrpeja

[ger21]

Some controls allow you to scale the g-code up or down in size.

[CitizenOfDreams]

Do you want to scale the part or shift it? If you want to shift it, just change the origin on the machine itself and leave the G-code file as is.

[mrpeja]

Hi, CitizenOfDreams,
Thanks for fast reply.
I want to shift the part.
Because machine's mechanical area is so small that I can't change the origin on the machine itself, it is still near to mechanical limit at the beginning and
biggest X axis coordinate feeds into another mechanical limit switch.
There is some margin incorporated in code during generating G-code file(about 0.3 inch) and I want to substract this amount from each X number.
Is this possible (but not manually)?
mrpeja

[CitizenOfDreams]

Subtracting a fixed number from all the X coordinates would have exactly the same effect as shifting the machine origin. How much X travel does your machine have?

[cyclestart]

If you need to split or scale gcode G-Code Ripper can do this. Don't worry his software is safe (no virus) and reliable
Link below:
G-Code Ripper

[mrpeja]

My machine has travel up to 19 inch and in another file (not this I have sent) there is coordinates up to 19,5 inch.
I have G-code ripper already downloaded, but didn't realize how to shift origin, yet.
Shift or split?
Maybe some help?
mrpeja

[CitizenOfDreams]

I still do not understand why you are insisting on shifting the coordinates in the g-code and not on the machine. If your file goes like this:

G0 X7000.0
G0 X7005.0

you can still run this file as is on a 5-inch machine by setting the machine's origin to X=7000.

[deadlykitten]

hi mrpeja, i hope i got it rigth : pls check attached, about shifting X coords of your file

you may split your code and shift each fragment, or leave the fragments as they are & shift the origin of the program ( like put the origin out of the machining area )

also, there are other solutions, like :
... creating the program in the right way from the start, so to avoid later editing time; a cam that can restrain a toolpath inside a perimeter should do the job
... replace X15.456 with X=common_variable+15.456, and initialize the common variable with the desired translation value; this is faster then editing the entire code content

kindly

M3
N4571 T5 M06 S0 
N4573 G81 X-14.872 Y0.591 Z-0.2800 R0.0500 F12.00
N4575 X-14.469 
N4577 X-19.518 
N4579 X-19.921 
N4581 X-24.567 
N4583 X-24.97 
N4585 X-29.616 
N4587 X-14.872 Y7.795 
N4589 X-14.469 
N4591 Y-21.801 
N4593 X-14.872
N4595 X-19.518
N4597 Y-22.205
N4599 X-19.921
N4601 Y-21.801
N4603 X-24.567
N4605 Y-22.205
N4607 X-24.97
N4609 Y-21.801
N4611 X-29.616
N4613 Y-22.205
N4615 Y-14.596
N4617 X-24.97
N4619 X-24.567
N4621 X-19.921
N4623 X-19.518
N4625 X-14.872 
N4627 X-14.469 
N4629 G00 X-14.469 Y15.404 Z0.0000
M02 
M30

[deadlykitten]

hello again, maybe code translation will work for you :

 
  ( this is your code, edited )

    #500 = - 30 ( translation value )


    M03
    T5 M06 S?
    G81 X=#500+15.1280 Y00.5910 Z-0.2800 R0.0500 F12.00
        X=#500+15.5310
        X=#500+10.4820
        X=#500+10.0790
        X=#500+05.4330
        X=#500+05.0300
        X=#500+00.3840
        X=#500+15.1280 Y07.7950
        X=#500+15.5310
                       Y08.1990
        X=#500+15.1280
        X=#500+10.4820
                       Y07.7950
        X=#500+10.0790
                       Y08.1990
        X=#500+05.4330
                       Y07.7950
        X=#500+05.0300
                       Y08.1990
        X=#500+00.3840
                       Y07.7950
                       Y15.4040
        X=#500+05.0300
        X=#500+05.4330
        X=#500+10.0790
        X=#500+10.4820
        X=#500+15.1280
        X=#500+15.5310
    G00 X=#500+15.5310 Y15.4040 Z0.0000


  ( M02 )


M30

or a temp work coordinate shift ?

... but didn't realize how to shift origin

pls share machine and control : if you are lucky, someone will give you the right codes / kindly

[mrpeja]

Hi, deadlykitten,
Thanks for the reply. I think this will be the solution if Mach1 (Weeeery oooold!) can understand code translation. I must look in manual for Mach1.
If someone already knew, please let me knew me to.
By the way, my machine is homemade.
mrpeja