Andy, As I recall when it was explained to me is that the index pulse is used once to start the process. After that the quadrature encoder A/B signals let the trajectory planner know how fast it's going and in which direction. I'm not sure if it even requires the index for multipass.
But then it may also have you that explained it to me... John > -----Original Message----- > From: andy pugh [mailto:bodge...@gmail.com] > Sent: September-03-21 8:30 AM > To: Enhanced Machine Controller (EMC) > Subject: [Emc-users] Rigid tapping with geared encoder > > I have just advised someone on the forum that he needs a 1ppr index to > rigid tap, as his encoder is mounted to the motor, not to the spindle. > > But then I started wondering if this is technically correct. I have a > feeling that single=pass rigid tapping will be fine, but mutli-pass > won't work? > > Has anyone tried this? > > -- > 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
