On Sunday 06 October 2019 14:00:09 Stuart Stevenson wrote: > Gene, > I frequently use a boring bar with a threading insert to thread mill > threads. It is a one flute thread mill but it does a wonderful job and > is not expensive. You can cut OD and ID threads. > Works a treat. > If your mill doesn't have a spiral code then maybe your CAM package > can output the motion in plain gcode. > thanks > Stuart > What CAM, any gcode written is written by me. And everything is running 2.9?? these days, so I've got all that anyway. Except the boring head to carry the threading bar. Gotta get me one of them puppies. ;-)
> On Sat, Oct 5, 2019 at 3:20 PM Gene Heskett <ghesk...@shentel.net> wrote: > > On Saturday 05 October 2019 12:56:25 John Dammeyer wrote: > > > If you are controlling the speed of your spindle with LinuxCNC > > > instead of just ON/OFF/DIR, how are you doing this? > > > > > > Step/Dir? > > > > > > 0V-10V PWM? > > > > Check, delivered to the spindle circuitry of a mesa-7i76D, thence to > > an ebay vfd on my 6040, > > And thru another ebay vfd is driven by a pwmgen in the 7i90, feeding > > a spinx1 on the sheldon lathe, from an rpi-3b. The lathe has an > > encoder, the 6040 does not. The only chance of ever doing any thread > > cutting would be in very soft material using a threading mill on the > > 6040, and G2-3 using Z feed might be used. Since its spindle tops > > at 24k revs, its xy circles at z feed for any potential threading. > > Threading mills need little red wagon loads of cash though. > > > > > ModBus? > > > If ModBus RS232 or RS485? > > > > > > Some other way? > > > > > > Thanks > > > John > > > > > > > > > "ELS! Nothing else works as well for your Lathe" > > > Automation Artisans Inc. > > > www dot autoartisans dot com > > > > > > > > > _______________________________________________ > > > Emc-users mailing list > > > Emc-users@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > Cheers, Gene Heskett > > -- > > "There are four boxes to be used in defense of liberty: > > soap, ballot, jury, and ammo. Please use in that order." > > -Ed Howdershelt (Author) > > If we desire respect for the law, we must first make the law > > respectable. - Louis D. Brandeis > > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
