Hi folks! ----- Original message ----- > Charles you might find that any M code will cause a slight stoppage of > the head as the M codes are not computed like gcodes with constant > velocity in mind but rather as a separate command. Also it is not a > motion command so there will be no motion when it is executed. If I was > you I would look at doing a PWM with PID type controller for the temp > control and that you can feed with any kind of value on a hal pin to > control the temperature. A component in the background will not > interfere with the smooth running of the head.
I had a similar issue, however related to on-the-fly changing of the feed rate. This problem was fixed by enabling path blending (M6x). Maybe, this helps here as well? Regards, Philipp > > On 2013-11-21 00:33, Charles Steinkuehler wrote: > > Yep, I think that will work! > > > > Now off to re-work my HAL setup and test it... > > > > Thanks! > > > > On 11/20/2013 4:22 PM, sam sokolik wrote: > > > 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 > > > > [email protected] > > > > 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 [email protected] > > > 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 > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > -- > > Regards /Groete > > Marius D. Liebenberg > +27 82 698 3251 > +27 12 743 6064 > > ------------------------------------------------------------------------------ > 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 > [email protected] > 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
