On Fri, 8 May 2020 at 01:23, Gene Heskett <[email protected]> wrote:
> If the spindle speed is steady, I have heard of folks doing rigid tapping > with 1 ppr. Ditto g76. You can do G76 with 1ppr, but not, sensibly, rigid tapping. For rigid tapping you need quadrature to detect the moment of spindle reversal. There is no reliable way to interpolate that. Semi-rigid tapping with a floating holder could be an option with a very low count encoder. I think that 100ppr might be enough for tapping. I wouldn't want to go much lower. Then choose spindle speeds where the software counter can keep up. -- 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
