I think I sent a bad link in the previous email. https://photos.app.goo.gl/ADtwHp4KVVaHiU1u8
John Figie On Thu, Nov 10, 2022, 5:04 PM John Figie <zephyr9...@gmail.com> wrote: > Thanks Andy for your reply. > > So I just finished adding an air line in my shop over to the Clausing NC > and wired up the I/O to the turret solenoid and motor. There are 4 limit > switches inside the turret and I didn't know what they were for so I just > connected them to inputs on my I/O card. I call them T1,T2,T3, and T4. Next > I played around with the outputs manually to see how the inputs worked. > T1 limit switch indicates that the turret is UP. T2 indicates that the > turret is DOWN and locked, T3 indicates that the geneva drive has finished > rotating 1/8 of a turn - this switch then changes state once power is > removed from the motor. T4 is ON when the Turret is UP also it is ON when > the turret is down and in position 1. See attached video link. > > So if the machine is turned powered on the tool changer would have to > remember the last turret position or otherwise It would need to home the > turret. Do I need to make a special homing routine? How would this best be > done? In hal or ladder logic? Some G-code routine initiated by a turret > home button? Just looking for ideas or maybe the way this is typically done. > > So I think I can make a sequencer ( in hal?) to move the turret one > position. I suppose I could have 8 tools defined and use some tools in the > 45 deg position but I don't know how useful that is. > > My milling machine uses manual tool change. I have my post processor set > up in a way so that my tool change position is always at Z max height and > X,Y position wherever the position was at the start of the program. This is > really convenient for me because I can start the program with the X,Y > location at some convenient place not above the work piece and not at some > extreme of the X and Y travel. Can operation with the automatic tool > changer work in a similar way? - like maybe I bring X as far away from the > work as possible but have Z return to where it was when the program started? > > Clausing NC Turret Operation > <https://photos.google.com/photo/AF1QipM1OSFRObrTwCisijYvFew1_9qXWUu_sjys16YV> > > John Figie > > > On Tue, Nov 8, 2022 at 12:37 PM andy pugh <bodge...@gmail.com> wrote: > >> On Mon, 7 Nov 2022 at 20:05, John Figie <zephyr9...@gmail.com> wrote: >> >> > A solenoid controlled valve actuates a piston that >> >> > raises the tool post. Once in the raised position a geneva drive and >> motor >> > rotates the post in 1/8 turn increments by pulsing power to the motor. >> So 2 >> > pulsed are needed to move the post one tool position. >> > >> >> What happens if the power to the motor is not pulsed but is left on until >> in position? >> If that works then "carousel" will work (though you would need a sequencer >> too, probably a G-code subroutine, as used in the >> sim/axis/vismach/vmc_toolchange example config. >> >> If you actually need to pulse, then it could still work, by setting the >> motor control output bits to enable a pulse generator component (siggen, >> for example) >> >> -- >> atp >> "A motorcycle is a bicycle with a pandemonium attachment and is designed >> for the especial use of mechanical geniuses, daredevils and lunatics." >> — George Fitch, Atlanta Constitution Newspaper, 1912 >> >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
