Bari , thank you for your reply. How is working a sewing machine for me it is clear (I really did the application I described). I read into a Brother industrial sewing machine user/maintenance manual and their electronic control manage encoders for the motors.
On Wed, Aug 27, 2014 at 6:42 PM, Bari <bari00...@gmail.com> wrote: > Alex, > > We started using Linuxcnc to control all sorts automation in the lab. > > Breaking down the steps to stitch: > > Move X,Y to start of the stitch (with Z at max height) > > Move Z down to min. (needle to lowest point) > > Raise needle > > Start Loop (spin looper motor) > > Finish Loop > > Needle to max height > > Move X and/or Y > > > https://www.youtube.com/watch?v=BAvQBLHMrw4 > > On 08/27/2014 10:58 AM, alex chiosso wrote: > > Hi Bari. > > Nice to know you. > > Have you experience with this particular application ? > > So for you closed loop positioning it's not needed ? > > > > > > On Wed, Aug 27, 2014 at 5:52 PM, Bari <bari00...@gmail.com> wrote: > > > >> Alex, > >> > >> I'd use Linuxcnc to build it. > >> > >> You can use steppers to control the needle motor and looper in open > >> loop. Your G-code could be written to just stop X and Y when the needle > >> is below the surface of the fabric. > >> > >> On 08/27/2014 10:21 AM, alex chiosso wrote: > >>> The application can appear "trivial" but it is not especially because > of > >>> needle speed and sycronization between the needle position and the X-Y > >>> movement. > >>> During the sewing the X-Y can move only when the needle it's outside > the > >>> label otherwise the needle can be broken and the clothe/label can be > >>> damaged . > >>> That's why the position feedback is needed. > >>> Additionally the command for some actuators sycronized to the sewing > >> cycle > >>> + sensors, pushbuttons, button lamps management. > >>> I would like to discuss with you what do you think about the conversion > >> to > >>> LCNC. > >>> > >> > >> > >> > ------------------------------------------------------------------------------ > >> Slashdot TV. > >> Video for Nerds. Stuff that matters. > >> http://tv.slashdot.org/ > >> _______________________________________________ > >> Emc-users mailing list > >> Emc-users@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/emc-users > >> > > > ------------------------------------------------------------------------------ > > Slashdot TV. > > Video for Nerds. Stuff that matters. > > http://tv.slashdot.org/ > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > ------------------------------------------------------------------------------ > Slashdot TV. > Video for Nerds. Stuff that matters. > http://tv.slashdot.org/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
