our big machine has 1 limit and 1 home machine for each axis - but a cam on each end of travel. (so 1 switch is used for both ends of travel)
(actually what I am using for the home switch was actually the tool change location switches) sam On 2/12/2013 1:45 PM, Chris Radek wrote: > On Tue, Feb 12, 2013 at 02:34:20PM -0500, Pete Matos wrote: >> John, >> That is about the clearest most logical response I could have asked >> for. Quite honestly I am unsure if my machine has three switches per axis >> as you described. I will have to check. It is definitely a PRO CLASS >> commercial machine as you say but I am unaware of the actual limit design >> of the original control. Lets assume for a minute tho that it does not >> have a third switch for homing here. How would you say would be the best >> limit setup in that case? > > Put the limit switches in the estop chain, and make yourself some > reference marks and use index-only homing if you don't have home > switches. Or, just add home switches. > > My real machine has a "limit override" momentary recessed button > that routes the estop chain around the limit switches. If it's > sitting on a limit you can hold it in, and come out of estop and jog > carefully off the switch with the wheel. I feel pretty good about > the setup, and it's mostly pre-retrofit wiring - that was the > original control's scheme. > > ------------------------------------------------------------------------------ > Free Next-Gen Firewall Hardware Offer > Buy your Sophos next-gen firewall before the end March 2013 > and get the hardware for free! Learn more. > http://p.sf.net/sfu/sophos-d2d-feb > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
