On Fri, 8 May 2020 at 16:58, Gene Heskett <[email protected]> wrote:
> Humm, makes me ask, Andy. I am useing some hal trickery to actually > sequence this turnaround and to profile it to where z can follow. > Because I am blocking the reversal signal, using it to stop the motor at > a controlled decel by a limit3 allowing the encoder time between pulses > to detect when it has essentially stopped, then the reversal is allowed > thru to the controller, the chosen speed is re-applied to the limit3 and > the motor is ramped back up to speed by the output of that limit3. You can safely limit3 the spindle command, but you mustn't filter the spindle position signal, as that will cause a phase lag, and a sloppy thread. -- 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
