Can you post the G-code for this somewhere? Do you know if the G-code has strictly continuous direction(tangent) or better yet: continuous curvature (acceleration)? Did you try different G64 tolerances? What tolerance does Mach3 use?
Can you log the actual position of the machine and compare LinuxCNC to Mach3 ? Better blending/lookahead is a periodically recurring theme here! :) However the problem is hard enough for the average hacker not to make much progress during a single weekend - and I think that's one major reason there hasn't been much work in this area. It probably requires a focused effort by people who have commercial interest (araisrobo on github?) or in an academic setting (i.e. motivated by getting a degree from it). My suspicion is also that better lookahead/blending will require making some assumptions about the kinematics used. So far there's been only one code-base which is capable of handling all kinematics, but I think the blending problem could be substantially simpler for 3-axis trivial kinematics - which probably covers a large fraction of linuxcnc users. Anders On Sun, Apr 7, 2013 at 12:13 PM, Steve Blackmore <[email protected]> wrote: > > CV in LinuxCNC still does not work well. Have a look at this > > http://youtu.be/ph_IVXg1C9Y > > Identical gcode and machine settings. First clip is LinuxCNC second > Mach3. > > Steve Blackmore > -- > > > ------------------------------------------------------------------------------ > Minimize network downtime and maximize team effectiveness. > Reduce network management and security costs.Learn how to hire > the most talented Cisco Certified professionals. Visit the > Employer Resources Portal > http://www.cisco.com/web/learning/employer_resources/index.html > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
