tormach did something to the planner, does anyone know what they paid for it, and how / who they commissioned to do it?
On Tue, 17 Aug 2021, 18:57 Ralph Stirling, <ralph.stirl...@wallawalla.edu> wrote: > I've also been hoping to see this appear in a Linuxcnc update, > as it has been worked on by a number of people for years. > Here are the most recent threads about jerk-limited trajectory planning: > > > https://forum.linuxcnc.org/24-hal-components/40152-jerk-limited-trajectory-planner-hal-component > > > https://forum.linuxcnc.org/38-general-linuxcnc-questions/34666-c2-smooth-velocity-profile?start=0 > > -- Ralph > ________________________________________ > From: David Berndt [ber...@uberwin.com] > Sent: Tuesday, August 17, 2021 9:01 AM > To: Enhanced Machine Controller (EMC); andrew beck > Subject: Re: [Emc-users] jerk control > > CAUTION: This email originated from outside the Walla Walla University > email system. > > > I don't have a great need for it with my machines, or the time/brains to > implement it. It just seems like a feature we really should have. > > I'd be willing to participate monetarily in some sort of system to > incentivize the inclusion of jerk control. Perhaps an open-source feature > bounty? Does the community want to consider that sort of thing? > > -Dave > > On Mon, 16 Aug 2021 23:06:05 -0400, andrew beck <andrewbeck0...@gmail.com> > wrote: > > > hey guys > > > > I am sitting here watching my cnc mill atm its shaking quite a bit > > acceleration is 600mm/sec2 which is not that high i think. compared to > > every other cnc mill i have used with a commercial controller. they have > > jerk control and work much better. so looking forward to when we get > > jerk > > control here on linuxcnc! > > > > but in the mean time i need a poor mans jerk control and thinking of a > > limit on the pid output to chop down the initial acceleration for the > > first > > moment in time just so little moves don't shake it to death > > > > andy mentioned that I could maybe use a limit component to limit the > > initial acceleration for the first tiny moment in time to cut down on the > > vibrations. > > > > how do you guys think that could work? > > > > Regards > > > > Andrew > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > > https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=04%7C01%7Cralph.stirling%40wallawalla.edu%7C7457b9607a2d4747a1e508d961a1b508%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C0%7C637648169423748846%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ue%2BwIaVhfay08NBevlCAvyOoNp0qVz9ojUuigRuCOOs%3D&reserved=0 > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > > https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=04%7C01%7Cralph.stirling%40wallawalla.edu%7C7457b9607a2d4747a1e508d961a1b508%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C0%7C637648169423748846%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ue%2BwIaVhfay08NBevlCAvyOoNp0qVz9ojUuigRuCOOs%3D&reserved=0 > > > _______________________________________________ > 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
