Well I have two high speed CNC machines.. But they are all analog control. Probably no good for tinyg
On Thu, 26 Aug 2021, 04:12 dave engvall, <dengv...@charter.net> wrote: > IIRC emc was conceived as a vehicle to test intercommunication between > processes and as such higher level features such as lookahead, > smoothing, etc were not part of the master plan. In fact emc would not > have had stepping if Matt Shaver had not requested it. > > Now on to the real subject of this email. Is there a user that has the > resources to test linuxcnc vs tiny g for smoothness vis a vis jerk. I > suspect that tiny g does not have integrated tools to do this so simply > milling under extreme conditions may be the only way to access the > utility of its jerk component. > Ideas, comments. > Ray Henry used to talk about tuning by milling before we had good tools > in emc. It could also be that he was dealing with analog controls. ;-) > > Dave > > On 8/23/21 5:51 PM, andrew beck wrote: > > Andy do you know what the tormach uses for more than 3 axis path > blending? > > > > > > > > On Tue, Aug 24, 2021, 11:11 AM andy pugh <bodge...@gmail.com> wrote: > > > >> On Mon, 23 Aug 2021 at 21:27, andrew beck <andrewbeck0...@gmail.com> > >> wrote: > >>> Just had a look at tiny g looks great. > >> I did try to implement a zero look-ahead finite jerk planner for laser > >> rastering. It was interesting, and I learned a bit. > >> > >> It is easier the less general you make it. > >> > >> Ideally LinuxCNC would have a 9-axis finite-jerk planner that handled > >> arbitrary kinematics with feed-override control. > >> > >> Tiny-G is a 3-axis (I think) planner with trivial kinematics and no > >> feed override (AFAIK). > >> > >> At the moment I would be happy just to see LinuxCNC handle more than > >> 3-axis blending. It's in Tormach. > >> > >> I have a feeling that kinematics is not a problem in most cases, the > >> kins functions run fast enough to be used for finite-difference > >> differentiation / numerical integration. > >> I am not sure about the more computationally intensive ones, such as > >> genserkins. (I think that is fast forwards, slow inverse) > >> > >> -- > >> 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, 1912 > >> > >> > >> _______________________________________________ > >> Emc-users mailing list > >> Emc-users@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/emc-users > >> > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
