I could maybe see monitoring following error... When the servo hit the limit - the error would increase. You could then use some logic that says when the following error reaches a certain amount - trip the 'virtual' limit switch. Maybe.. I could see lots of issues and as gene says - you would want to limit the output to the servos. If you have any I (in the pid) the pid loop will 'wind up' pretty quick sending the servos to maximum.
Big picture it seems possible... :) (but I am just thinking out loud) sam On 6/6/2010 11:09 AM, Neil Baylis wrote: > Many printers& plotters do not use limit switches. Instead, they move the > print head slowly towards the end stop until the motor stalls, and then back > off from that point a certain distance and that's the home position or soft > limit. > > What, roughly, do I need to do with EMC to get this behavior? > > Neil > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
