Re: [Emc-developers] Initial tests of circular arc blending

2014-01-07 Thread Robert Ellenberg
Ok, good news on the testing front, I think I've finally eliminated the little acceleration overages by making TP_TIME_EPSILON smaller, from 10^-7 to 10^-10 or so. Properly initializing the ABC and UVW parts of the blend arc seem to have eliminated the graphical glitches as well. With these last

Re: [Emc-developers] Initial tests of circular arc blending

2014-01-07 Thread sam sokolik
I have a question about Controls how aggressive velocity smoothing is. It's a bit counterintuitive, a value of 0.5 means no smoothing, a value of 0.0 means every segment is smoothed. Decrease this value if the velocity profile seems to be too bumpy. ARC_BLEND_SMOOTHING_THRESHOLD = 0.4 I see in

Re: [Emc-developers] Initial tests of circular arc blending

2014-01-07 Thread Robert Ellenberg
I'm thinking about changing how that constant works. Right now, it represents how much of the segment has to be consumed by a blend arc before we enable smoothing. If it's set at 0.50, this means smooth any lines that are shortened by more than 50%. Smoothing in this case means limiting the

Re: [Emc-developers] Initial tests of circular arc blending

2014-01-07 Thread sam sokolik
I posted on cnczone and linuxcnc for testing.. Hopefully some of the more adventurous users will give it a try http://www.cnczone.com/forums/linuxcnc_formerly_emc2/206712-new_trajectory_planner_-_testers_programs_wanted.html