On 5 March 2018 at 13:07, Mark <wendt.m...@gmail.com> wrote: > I'm leaning towards lincurve. In order to utilize that, I've got to upgrade > linuxcnc to a bit new version.
That's not strictly necessary, the file is a standalone module, you could just download the comp file and sudo comp --install lincurve.comp https://github.com/LinuxCNC/linuxcnc/blob/master/src/hal/components/lincurve.comp Right-Click the "Raw" button and "Download file as..." But: To use the external offsets you need to run the experimental external-offsets branch, and it isn't a standard LinuxCNC version. You might be able to get it from the buildbot. But you would need someone else who knows their way around the buildbot to find the .deb if it exists (I just build from source) You can use the "offset" HAL component though, so all is not lost. You can even use both with your 2.5.5 install http://linuxcnc.org/docs/2.7/html/man/man9/offset.9.html > I couldn't find any examples of lincurve in use and the man page is a bit > thin on how to actually implement it. Also, the man page mentions x,y > coordinates. Those refer to the axes of the imaginary graph paper that lincurve is drawn on. You can use any input at all, and do anything at all with the output. This is HAL. You set the curve up (rather clunkily) in HAL. If X = 0 is nominal and X = 3" is 5 thou high: setp lincurve.0.x-val-00 0 setp lincurve.0.y-val-00 0 setp lincurve.0.x-val-01 3 setp lincurve.0.y-val-01 -0.005 and so-on. You might want to keep the curve definition in a separate HAL file for convenience. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
