o codes and grbl
- agarthetiger
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09 Mar 2018 13:17 #107147
by agarthetiger
o codes and grbl was created by agarthetiger
I've got a Sienci Mill One which runs grbl on an Arduino Uno. I know grbl only supports a sub-set of g-codes and am wondering if LinuxCNC would do any post-processing of o codes such that I could write 'g-code' using O codes and have a .ngc output file generated which would be valid grbl?
I'm starting to write g-code by hand to learn what's going on with my mill, and am hoping there is some way to write concise g-code (using subroutines etc) which will still convert to valid grbl. Will LinuxCNC (or any software) be able to do this?
I'm starting to write g-code by hand to learn what's going on with my mill, and am hoping there is some way to write concise g-code (using subroutines etc) which will still convert to valid grbl. Will LinuxCNC (or any software) be able to do this?
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11 Mar 2018 10:17 #107210
by andypugh
Replied by andypugh on topic o codes and grbl
LinuxCNC does exactly the same job as GRBL. So it won't be able to help.
LinuxCNC is a consumer of G-code, not a producer of it.
LinuxCNC is a consumer of G-code, not a producer of it.
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30 Jan 2019 23:56 #125353
by roycegb
Replied by roycegb on topic o codes and grbl
I have the same question. I have loads of standard routines that I wrote in LinuxCNC GCode. I would like to utilize these on my GRBL machine. They include named variables and flow control codes, particularly o sub and o while. I would like to find a preprocessor that would convert this compact, CNCLinux GCode to the expanded code fo the GRBL subset.
I do most of my designs directly in GCode using these routines. I find the overall code very compact and readable.
I do most of my designs directly in GCode using these routines. I find the overall code very compact and readable.
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31 Jan 2019 10:27 #125380
by andypugh
Replied by andypugh on topic o codes and grbl
sai (The stand alone interpreter) might be part of the answer.
I am not at a LinuxCNC machine at the moment. Does the command "sai" do anything?
I am not at a LinuxCNC machine at the moment. Does the command "sai" do anything?
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31 Jan 2019 17:37 #125416
by roycegb
Replied by roycegb on topic o codes and grbl
SAI, good idea, but the output didn't look very useful. Further, it seemed to ignored literal parameters, o while and o sub. I didn't get any syntax errors when I processed the test files so it accepted everything just didn't make it to the output file.
Thanks
Thanks
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31 Jan 2019 18:09 #125419
by andypugh
Replied by andypugh on topic o codes and grbl
I was thinking that the output could either be converted my simple find-and-replace or the file itself could be modified to output simple G codes.
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