On Thu, 11 Mar 2021 at 13:05, <ken.stra...@gmail.com> wrote: > I believe that wire EDM is the usual way to make small quantities of internal > (ring) gears. It seems possible that one might imitate a mini-Fellows by > moving the z-axis up/down to shave the gear.
Bear in mind that the Fellows system still generates the gear. The cutter and the blank both rotate, in the proportions of their ratio. You can get away with only one accurate rotary axis if you interpolate the other. (but you would need to modify the rotation of the rotating axis) I have considered making a slotting head for my mill, and probably would have done so by now were it not for the fact that if I did do that, it would need to be a CNC-rotated slotting head for just this purpose. -- 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
