On Thu, 2010-09-09 at 13:47 +0300, Anders Wallin wrote: > > The basic question I guess is would EMC be able to provice the same tool > > path quality as the (lower end) Siemens or Heidenhain controllers? > > You should run EMC in simulator mode, and use halscope or halstreamer > to record all the joint positions to disk. Then you can analyze this > data later for correctness/smoothness. > > It is fairly easy to "choke" the EMC interpreter/traj-planner with > G-code which consists of many many short G01-segments. It could be > argued that these should be filtered to longer lines, arcs, biarcs or > NURBS G-code, but if you have a CAM-program that only outputs these > short G01-segments this could become a problem.
What about adding a G64 P... or similar? Even with a very small P of a few hundredth of a millimeter it improves the situation significantly. I have some experience on the 840D and I do not think that it behaves differently. If you run the 840D in G60 mode (default), it will also stop after each G1/0 move and re-accelerate. So I do not think there's a difference between 840D and EMC here. The machine does what you program. So if you program a stop every 5 microns, it will completely halt every 5 microns. -- Greetings Michael. ------------------------------------------------------------------------------ This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
