Ooh!! Can't wait to try it.
On Fri, 27 Jan 2017 03:44:01 +0000 Robert Ellenberg <rwe...@gmail.com> wrote: > For anyone interested in trying this out, I have fixes / improvements in > this branch now: > > https://github.com/robEllenberg/linuxcnc-mirror/tree/feature/spindle-sync-overhaul-2.7-rebase > > - Less intrusive warning messages if the spindle is too fast > - Spindle RPM limit calculation should work properly now > - Improved (again) algorithm for position tracking that should have even > less acceleration ripple. > > Best, > Rob > > On Thu, Jan 26, 2017 at 3:10 AM John Morris <j...@zultron.com> wrote: > > > > > On 01/23/2017 12:05 PM, John Kasunich wrote: > > > If you run a program with G33 moves in it and the spindle isn't > > > turning, the program will silently hang waiting for index. > > > > Additionally, a G33 move will wait for the spindle-at-speed pin. (See > > below) > > > > > The run-time check sould of course use the actual spindle speed from > > > the encoder. If you don't have an encoder you can't do G33 anyway. > > >[...] > > > > > > On Mon, Jan 23, 2017, at 12:18 PM, Robert Ellenberg wrote: > > >> Is there an INI or HAL setting to tell LinuxCNC that the spindle > > >> ismanually controlled? > > > > > > Not that I'm aware of. > > > > Of course an INI setting could be added to specify whether the spindle > > is under LCNC control, but even without this, Rob's spindle-scaling > > scheme should still work. If a fixed-speed spindle runs at 2000 RPM but > > axis constraints limit max spindle speed to 1000 RPM, the program should > > pause indefinitely waiting for the spindle-at-speed pin. > > > > This behavior could be puzzling: the spindle is turning, but axes never > > move, why? This might be addressed with a "spindle not coming to speed" > > warning following some timeout. > > > > If that makes sense, then here's one way to specify the checks: > > > > - Preview-time check: > > - Input: S value > > - Applicability: any machine > > - Fixed-speed spindles: operator must program S to benefit fm check > > - Failure action: raise warning > > > > - Run-time check: > > - Input: spindle encoder output > > - Applicability: any machine with spindle encoder > > - No spindle encoder: hang waiting for index; see next > > - Failure action: scale spindle speed > > - After timeout on index/spindle-at-speed pins, raise warning > > > > John > > > > > > ------------------------------------------------------------------------------ > > Check out the vibrant tech community on one of the world's most > > engaging tech sites, SlashDot.org! http://sdm.link/slashdot > > _______________________________________________ > > Emc-developers mailing list > > Emc-developers@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, SlashDot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
