> On 27 Mar 2022, at 08:09, andrew beck <andrewbeck0...@gmail.com> wrote: > > And is bigger dia better for higher resolution?
Probably not, as it will perhaps have more scope to oscillate at 10,000 rpm. Don’t neglect the purely mechanical design of this fast-spinning part. Have you considered optical sensors rather than inductive? What will be counting the pulses? LinuxCNC can lathe-thread with one sensor. But rigid-tapping is different as it needs to accurately detect the reversal point. So you need three channels for index and full quadrature. Work out what error you can accept in the reversal point detection (as a fraction of thread pitch) and you can get a feel for how many slots you need. _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
