On Thu, 18 Jul 2019 at 03:01, Gene Heskett <[email protected]> wrote:
I have a G0704 John, and have not managed to damage those plastic gears > yet, but I found a 67 slot wheel replacing the original drilled tach > wheel, with slot interruptors had way too much quantization noise to be > used as spindle speed feedback. The requirements for rigid tapping are less stringent than for PID spindle speed control. My 50-tooth one was entirely adequate for gear-hobbing. Another option would be to use a single index from the spindle and use the motor encoder for the A and B phases. Though you will need a hardware counter for that many PPR. You can change the scale on-the-fly in HAL when you change gear. -- 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, 1916 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
