I have a question about the acceleration limits. (and I might be nit-picking here) But I have been goofing around with the trochoidal.ngc file from http://www.vagrearg.org/gcmc/trochoidal.ngc.gz
I see when I push the velocity up to 3500mm/min - the peak velocity starts to dip (this is with 30in/s^2 acc) http://imagebin.org/301375 but you can see that the acc doesn't get to 30in/s^2 - it seems to peak at about 26 or so. I did play around with the gap freq in the ini file (setting it to my servo period of 1000) and it may have helped just a little bit. http://imagebin.org/301376 (acc peaks just a little higher) is this just a limitation of the whole system? It it still way way better than the current tp - but was wondering what was causing this. sam On 3/21/2014 2:14 PM, Robert Ellenberg wrote: > I haven't implemented arc blending with more than 3 axes yet. However, the > last big refactor will make it easier to do that in the future. The big > obstacle is that it requires changing how the trajectory planner treats > velocity and arc length internally. Right now, the path progress and > velocity only consider XYZ motion, and the other axes follow > proportionally. To get arc blending to work with other axes, the planner > needs to consider all 9 axes when calculating path progress and velocity. > It's not as scary as it sounds, since most of the math is the same. > However, it means a lot of small changes in the TP. > > Unfortunately, my schedule is filling fast as I wrap up grad school, so it > will be at least two months before I can tackle big changes like this. > Still, when I do get the time, it'll be nice to implement. > > Rob > On Mar 21, 2014 2:56 PM, "John Thornton" <bjt...@gmail.com> wrote: > >> I have a friend that is very interested in the new trajectory planner >> with an X, Z, A machine. Is there any development on the A axis? >> >> Thanks >> JT >> >> >> ------------------------------------------------------------------------------ >> Learn Graph Databases - Download FREE O'Reilly Book >> "Graph Databases" is the definitive new guide to graph databases and their >> applications. Written by three acclaimed leaders in the field, >> this first edition is now available. Download your free book today! >> http://p.sf.net/sfu/13534_NeoTech >> _______________________________________________ >> Emc-developers mailing list >> Emc-developers@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-developers >> > ------------------------------------------------------------------------------ > Learn Graph Databases - Download FREE O'Reilly Book > "Graph Databases" is the definitive new guide to graph databases and their > applications. Written by three acclaimed leaders in the field, > this first edition is now available. Download your free book today! > http://p.sf.net/sfu/13534_NeoTech > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > > ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
