> From: andy pugh [mailto:[email protected]] > On Tue, 2 Feb 2021 at 17:22, John Dammeyer <[email protected]> wrote: > > > What's a CNC slotting head? > > It's like a slotting head, but CNC :-) > > The idea would be to have a CNC controlled tool rotation combined with > the conventional reciprocation. > > -- > atp
OK. Let's see if I have that right. My Spindle is driven (well will be as it's currently still 0V-10V) with step and direction. There will be an index and of course encoder on the spindle. Once I have step/dir instead of PWM/DIR I should be able to tell the spindle where I'd like it to be. So if I have a rectangular punch held and keyed in some repeatable fashion (better than the R8 pin) then I should be able to tell it to turn to 45 degrees and then move down. (or knee move up). The motor holds the spindle pretty well solid. In fact annoyingly so because unless I disable the AC servo it won't let me turn it. I imagine though a brake is probably needed to ultimately hold it really stiff. Is that what you mean? But can you actually configure LinuxCNC to both run spindle as an RPM axis and also a positioning axis? I realize the loop is closed for tapping but 60 teeth per rev for the encoder isn't the same as 3600 for the nearest 10th of a degree. John _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
