> To: emc-developers@lists.sourceforge.net > From: marius.alks...@gmail.com > Date: Tue, 22 Dec 2015 06:11:23 +0200 > Subject: Re: [Emc-developers] jerk limited trajectory > > 12/17/2015 05:40 PM, Viesturs Lācis rašė: > ... > > IIRC it has not been implemented in LinuxCNC, because it would not > > work for spindle-synchronised moves, but I might be totally wrong on > > that :)) > > > > > > Viesturs > > I see jerk limitation as very nice and important feature to have. > And I would go with a workaround like disabling jerk limitation only > when doing spindle-synchronised move (or whatever else rarely used type > of move) to let it work for the mainstream. > > BTW, limit4 would be great too :) >
That version of jerk-limited just didn't quite work right with spindle-synch. IIRC the person doing it didn't need spindle-synch and got little help - lost interest. Not that i blame him - it looks very difficult! I understand another developer has made a jerk limited planer. I believe it was based on the single-look-ahead planer. IIRC the new planer is _much_ more complicated and time has been a factor. I bet this is it: http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=shortlog;h=refs/heads/micges/master/limited_jerk There has been work on a reverse run planer ( think EDM ) There has been work on adding UVW to the look-ahead planner. lots of work on JA (joints vrs Axis think weird machines and routers) Lots of great stuff. I wonder if/when it will filter in ... Chris M ------------------------------------------------------------------------------ _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
