I believe that the way is *should* work is that overriding limits should override both hard and soft limits. Compared to overriding hard limits, overriding soft limits is harmless. For additional protection though, overriding limits should allow jogging only *away* from the limit that has been hit.
That would solve the problem very nicely, I think. Of course, I have no idea about how difficult this might be to implement. :-) Ken Kenneth Lerman Mark Kenny Products Company, LLC 55 Main Street Newtown, CT 06470 888-ISO-SEVO 203-426-7166 ----- Original Message ----- From: "John Thornton" <[EMAIL PROTECTED]> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Sent: Friday, May 02, 2008 8:26 AM Subject: Re: [Emc-users] "Un-Homing" an axis > You would think that a jog override for soft limits would be nice. But > then that > encourages sloppy setup and could cause serious damage on a larger > machine... > > John > > On 1 May 2008 at 22:43, Carl Helquist wrote: > >> Somewhat related to the overriding limits topic, but I think different >> enough to start a new topic: >> >> I am using soft limits on my machine. If I accidently click on home >> instead of touch-off (the buttons are right next to each other) at >> that point I am stuck. I can't jog back to the home position to reset >> it because I'm at the soft limit. While the obvious answer is to not >> click the wrong button, I could also see this easily happening on the >> keyboard as my home key is right next to the arrow keys. >> >> Is there any way to put an axis back to the pre-homed state? Either >> that or a soft limit override? >> >> As I write this I may have answered my own question. I could modify >> Axis and Tkemc to disable the keyboard home button (not a great >> sacrifice as far as I can see) and move the screen home button to a >> location that requires a more deliberate move on my part, possibly on >> a pull-down menu. Disabling the screen button after homing the axis >> once is also tempting, with maybe an option to turn it back on in one >> of the pull down menus. Does anyone see any great disadvantage to any >> of this? I not suggesting that this be a change to the official >> version of Axis and Tkemc, just wondering if anyone sees any problems >> with my idea. >> >> Carl Helquist >> >> ---------------------------------------------------------------------- >> --- 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 Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > > > > ------------------------------------------------------------------------- > 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 > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------- 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
