Jon Elson wrote: > I'm wondering if you have the polarity of the home switch set > backwards. Maybe my machine did the same until I flipped the > polarity of the hole switch sensing.
If the home switch polarity is wrong, the switch will appear to be closed when it is not. If the machine appears to be on the switch when the homing process starts, EMC will attempt to back off of the switch by moving at -HOME_SEARCH_VEL. So if your machine goes the wrong way when you hit home, thats a dead giveaway. If you saw it go the wrong way and said to yourself "its going the wrong way, I must have SEARCH_VEL backwards", you might have flipped the sign. In that case, the "backoff" move will go toward the switch. When it hits the switch it will think it just succeeded in getting clear, so it will begin to look for the switch by moving at SEARCH_VEL. But since you flipped SEARCH_VEL around, it will head away from the switch, and stop when it hits the far limit, or after traveling approximately twice the distance between the soft limits, or when you hit ESC or ABORT or the estop button. 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
