A couple of sources: http://www.mesanet.com/pdf/motion/softdmc.pdf 50 us cycle.... -:)
Some years ago a masters candidate in ME at UBC did her thesis on motion control with jerk limiting and sine wave accel. I used to have a copy of it but cannot find it. IIRC is would be post 2005 and author's name was something like Silvia M(a)cFarland. On the one axis motion controller what cycle time were you using and did faster cycle times smooth it any?
Dave On 7/22/20 1:51 PM, andrew beck wrote:
hey guys I have a relatively high speed machine (3kw motors 16mm pitch ballscrews) 35mm linear rails, and weights 5.8 ton. I think it used to go 20m/min with the heidenhain control. I have been noticing a bit of jumping around when doing parallel finishing 3d passed on it at high speed. and talked to a couple of linuxcnc guys and found out that linuxcnc doesn't have any jerk control. just sending out a email here seeing what the current progress is on that. at high speed high precision linuxcnc definitely needs some work at some stage. apart from this I am completely happy with linuxcnc. this would be a nice thing to solve though. and if someone with the right skills wanted to fix it I would be happy as to chip in to pay something for the time. as I run a business in my machine shop where everything runs linuxcnc in the mean time I will try to get around the issue by programming in cam regards Andrew _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
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