John Kasunich wrote: > Jon Elson wrote: > > I have no idea how hard it is to do better with this lookahead, > > It's hard. :-( > > That's the rub - if there is a discontinuity the machine has to slow > down. But it doesn't know there is a discontinuity until it gets there. > (Or in EMC's case, until it gets within one segment of there.) Well, then, what is the difference between G64 and G64 P0.0005 ? In this particular program, it makes a 4 minute difference, or a factor of 15:1 ! it still didn't get up to the programmed feed rate, but it got a lot closer. I think I must have left the file with the 60 IPM feedrate in it, and it did 6.28 inches in 17 seconds, or 22 IPM.
I can understand horrible performance in G61 mode, that would be expected. Jon ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
