Jogging while paused is a separate problem from removing modes. Chris, you might like to look at Dewey's External offset branch as he's included a Jog while paused sime for the z axis. See https://github.com/LinuxCNC/linuxcnc/blob/dgarr/external_offsets/configs/sim/axis/external_offsets/jwp_z.ini Sorry, but I've not played with it.
Rod Webster +61 435 765 611 Vehicle Modifications Network www.vehiclemods.net.au On 6 December 2017 at 03:40, Chris Morley <[email protected]> wrote: > > Jogging while paused is a separate problem from removing modes. The > controller is busy when paused, So not available to do anything else. > I agree Michael's idea to the jog while paused problem was very > interesting and probably opened up other interesting uses, unfortunately > I'm sure it's dead code now. > > Chris M > > ----- Reply message ----- > From: "Rene Hopf" <[email protected]> > To: "EMC developers" <[email protected]> > Subject: [Emc-developers] Mode switching bug > Date: Tue, Dec 5, 2017 6:30 AM > > > > > On 5. Dec 2017, at 10:33, Chris Morley <[email protected]> > wrote: > > > > I actually wonder why the controller must have modes at all. > > > > The only thing really important is if it is busy it must finish. > > removing modes altogether would solve a lot of problems. > especially jogging while paused, which is a much requested feature, and > comes up very often. > there is a jog while paused branch, which already does most of the stuff, > like going back to the old position when you continue. > > > > > > ie if it's busy running an MDI command it can't jog > > > > If it's running a program it can't MDI > > > > etc > > > > Traditionally NC machines separated these modes with a switch. > > > > I don't see why we need to do that any more. > > > > > > If the controller is idle it should be able to do anything. > > > > This would leave it to the UI/user to decide whats allowed when. > > > > > > UIs have been working around this problem for a very long time. > > > > Ie touchoff is an MDI command which is quite obviously a manual > > > > mode command. > > > > > > Chris M > > > > ________________________________ > > From: Kurt Jacobson <[email protected]> > > Sent: December 4, 2017 7:27 PM > > To: EMC developers > > Subject: Re: [Emc-developers] Mode switching bug > > > > Any UI that wants to work well with wheel jogging has to find some way of > > setting the task_mode > > back to manual after each MDI command, and as we have seen that is not > > trivial to do without > > breaking external programs that issue MDI commands. In fact, I do not > think > > it is an overstatement > > to say that so far *nobody* has managed to make both wheel jogging and > > external MDI commands > > work satisfactorily at the same time. > > > > Since all UIs suffer from this problem, it seem like instead of each UI > > using some kind of work > > around, this problem might should be solved at a lower level. > > > > I have no idea what MDI mode actually does internally, but from a > practical > > user perspective, I can't think > > of any time were there is a need for LCNC to remain in MDI mode after > > issuing an MDI. > > > > As far as I can tell most UIs that work well with wheel jogging employ > > something like the following pseudo code: > > > > def issue_mdi(cmd): > > set_mode(MDI) > > issue_mdi(cmd) > > set_mode(MANUAL) > > > > while(True): > > if not mode_manual and is_idle: > > set_mode(MANUAL) > > > > So basically the UI ensures that LCNC is not in MDI mode unless it it > > actively issuing an MDI command, which > > essentially is the same thing as not having an MDI mode at all (from the > > users perspective). So what if instead > > of making each UI have to handle switching back to manual mode this is > done > > elsewhere. For example `command.mdi()` > > could switch LCNC to mdi mode, issues the command, and then switched back > > to manual. > > > > It seems like something like this would make life simpler for the UIs ... > > > > Cheers, > > Kurt > > > > > > On Mon, Dec 4, 2017 at 11:43 AM, Kurt Jacobson <[email protected]> > > wrote: > > > >> On Mon, Dec 4, 2017 at 10:54 AM, Rene Hopf <[email protected]> wrote: > >> > >>> > >>>> On 4. Dec 2017, at 16:14, Les Newell <[email protected]> > wrote: > >>>> > >>>> This is master as of a couple of months ago. I'd rather not install > the > >>> patch because I want it to switch back to manual after MDI. > >>> > >>> the patch should still allow you to do that. thats why I asked you to > >>> test. > >>> > >> > >> I am afraid not. Dewey's branch does not switch back to manual after an > >> MDI, at least in my tests. > >> > >> > > ------------------------------------------------------------ > ------------------ > > Check out the vibrant tech community on one of the world's most > > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > > _______________________________________________ > > Emc-developers mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > ------------------------------------------------------------ > ------------------ > > Check out the vibrant tech community on one of the world's most > > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > > _______________________________________________ > > Emc-developers mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers > > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
