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
