Would an M71 be a solution to your problem? > -----Original Message----- > From: Les Newell [mailto:[email protected]] > Sent: Sunday, August 26, 2018 9:42 AM > To: [email protected] > Subject: Re: [Emc-users] G43 weirdness - now looks like M73,M72 bug > > I spent some more time looking into this and it appears to be a problem > with M72. My tool change sub uses M73 to save feed rate, units etc so it > can do the tool change moves without affecting the main running code. At > the end I had M72 to restore everything before my G43. That causes G43 > to act strangely. I moved the core tool change functionality to another > sub then called that in my main toolchange sub before the G43. It now > behaves correctly. > > What I think is happening is that if you use M73 the state is always > restored at the end of the sub, even if you use M72. This means that the > state gets restored again after the G43: > > O<toolchange> sub > M73 (state is stored) > ....tool change code > M72 (stored state is restored) > G43H#5400 (offsets are applied) > O<toolchange> endsub (previously stored state is restored again, messing > up the offsets) > > If you use M72 it should not try to restore the state again at the end > of the sub. Actually that explains some odd behaviour on my mill with > it's tool setter as well. > What my new code does: > > O<toolchange> sub > O<do_toolchange> call > G43H#5400 > O<toolchange> endsub > > O<do_toolchange> sub > M73 (state is stored) > ....tool change code > O<do_toolchange> endsub (state is restored) > > Tool changing is working great now. It even has an automatic tool > setter. If you change to a tool that hasn't previously been checked it > will use the tool setter. To save time the next time you select that > tool it won't bother to use the tool setter. Aborting at any time or > manually taking a tool out of the head will force all tools to be > checked next time they are changed. > > Les > > ---------------------------------------------------------------------------- -- > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users
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