Re: [Emc-users] jerk control
Forgot to say this is metric of course On Tue, Aug 17, 2021, 3:53 PM andrew beck wrote: > Yep g64 p. 01. > > This is a high speed vmc so I can't really afford to blend the path more > than this > > On Tue, Aug 17, 2021, 3:48 PM Curtis Dutton wrote: > >> Are you using any G64 P- Q- path blending? >> >> On Mon, Aug 16, 2021, 11:19 PM andrew beck >> 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://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
Re: [Emc-users] jerk control
It's pretty much a slightly beefier haas vf2 This is a chevalier 2040 vmc On Tue, Aug 17, 2021, 3:53 PM andrew beck wrote: > Yep g64 p. 01. > > This is a high speed vmc so I can't really afford to blend the path more > than this > > On Tue, Aug 17, 2021, 3:48 PM Curtis Dutton wrote: > >> Are you using any G64 P- Q- path blending? >> >> On Mon, Aug 16, 2021, 11:19 PM andrew beck >> 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://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
Re: [Emc-users] jerk control
Yep g64 p. 01. This is a high speed vmc so I can't really afford to blend the path more than this On Tue, Aug 17, 2021, 3:48 PM Curtis Dutton wrote: > Are you using any G64 P- Q- path blending? > > On Mon, Aug 16, 2021, 11:19 PM andrew beck > 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://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
Re: [Emc-users] jerk control
Are you using any G64 P- Q- path blending? On Mon, Aug 16, 2021, 11:19 PM andrew beck 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://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] jerk control
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://lists.sourceforge.net/lists/listinfo/emc-users
