> From: andy pugh [mailto:bodge...@gmail.com] > On Wed, 3 Feb 2021 at 03:28, John Dammeyer <jo...@autoartisans.com> wrote: > > > > The idea would be to have a CNC controlled tool rotation combined with > > > the conventional reciprocation. > > > Is that what you mean? > > No. The slotting tool will run up and down continuously on the spindle > motor, as usual. > But the tool will also have the ability to rotate on the C' axis. > > Think in terms of a Fellows gear shaper. > I watched a few of the Fellows gear shaper videos. Gave me an idea. I have an AC servo on the knee. I've thought about adding motion to the quill but I do like the option for manual operation for some things.
But how about on the quill installing a 4 start 1 TPI ball screw. With an appropriate servo with a 1000 line encoder in quadrature there's still 0.00025" resolution. But at the same time a fairly fast motion along with rotation on the C axis. So a vertical shaper behaviour for something like keyways or for internal gear teeth. Theoretically a lever on a pot could also be used as the feed handle for the 1 TPI screw retaining the mechanical ability. Probably need a switch on the quill clamping lever too. John _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
