I think you want http://linuxcnc.org/docs/devel/html/gcode/m-code.html#sec:M67-Analog-Output maybe...
sam On 11/20/2013 04:16 PM, Charles Steinkuehler wrote: > For my 3D printer, I am currently using the existing M1xx convention to > do things like set the extruder temperature and set the cooling fan > speed. The problem is that this causes a brief pause in coordinated > motion as the whole of LinuxCNC comes to a stand-still, my shell-script > is executed to set a HAL signal value, and motion resumes again. Each > pause winds up turning into a small 'blob' of plastic as the extruder > oozes a bit while it remains stuck in one spot. > > So...is there a way to communicate arbitrary values from gcode to HAL > that doesn't cause motion to completely stop (or to stop for a lot less > time than it takes to launch a sub-process running a shell script)? > > > > ------------------------------------------------------------------------------ > Shape the Mobile Experience: Free Subscription > Software experts and developers: Be at the forefront of tech innovation. > Intel(R) Software Adrenaline delivers strategic insight and game-changing > conversations that shape the rapidly evolving mobile landscape. Sign up now. > http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktrk > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Shape the Mobile Experience: Free Subscription Software experts and developers: Be at the forefront of tech innovation. Intel(R) Software Adrenaline delivers strategic insight and game-changing conversations that shape the rapidly evolving mobile landscape. Sign up now. http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
