Hi, Can one of you boffins enlighten me a little please on the subject of backlash. It hasn't bothered me before but one of my axes has now developed a little backlash (0.06mm) and I'm not sure how EMC2 handles it. To be specific.... I run without limit or home switches at the moment and so when I put a new job on I first jog the axes to my known start point, touch off and then run the program. What happens at first - do the axes take into account the backlash as they start to move and if so how - or, more particularly, how can they know whether backlash compensation is needed on the first move or not. Does EMC2 remember the direction it last jogged in? Whether or not backlash is compensated for in the initial move obviously determines the direction I need to jog the axes in to get to the start position. Even though the backlash is quite small on my machine, it really matters as I am making parts for watches and the odd thou can ruin a piece....
-- Best wishes, Ian ____________ Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." ------------------------------------------------------------------------- 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
