Stuart Stevenson wrote: > Gentlemen, > When I home my machine it will run through the home cycle but > instead of setting zero in reference to the marker pulse it will rapid > to the position it was in when I started the machine. This is the axis > zero postion in effect before the home cycle. The home sign beside the > DRO for each axis comes on and the machine acts as if it is homed. The > soft limits work from the axis position when I started the machine. > This is but not what I want. It seems as if I have no control over the > home position. This doesn't allow me to use the home sequence set zero > where I want to set it. Every once in a while during the home cycle a > random axis will set zero at the index pulse. I cannot predict > when/which axis it will home properly. I have read the manual and > tried several combinations of ini configurations. How can I make sure > the home cycle does this for every axis every time? Apparently I am > overlooking something. > thanks > Stuart
You mention index pulses... are you reading the encoders with software or hardware. If hardware, which hardware? What are the values of the homing related items in your ini file? These are from the [AXIS_0] section of asample config - yours will probably have different values: HOME = 0.000 HOME_OFFSET = 0.0 HOME_SEARCH_VEL = 5.0 HOME_LATCH_VEL = 1.0 HOME_USE_INDEX = NO HOME_IGNORE_LIMITS = NO HOME_SEQUENCE = 1 HOME_IS_SHARED = 1 You should understand the drawing on this page: http://www.linuxcnc.org/docs/2.1/html/config/ini_homing/index.html Your homing parameters will determine which of those cases you are dealing with. I'd also recommend checking "dmesg" after a failed homing sequence, to see if EMC printed any messages there. If so, post them please. Regards, John Kasunich ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
