John, We are talking about threading with the boring bar. Use a boring bar in the mill with a threading insert. You can thread any diameter OD and any diameter the boring will fit in. For a round hole I would prefer a reamer or a boring bar in a boring head. thanks Stuart
On Sun, Oct 6, 2019 at 4:43 PM John Dammeyer <[email protected]> wrote: > > On Sunday 06 October 2019 16:07:16 Stuart Stevenson wrote: > > > > > You don't need a boring head. An end mill adapter/holder will work > > > just fine. > > > > > On Sun, Oct 6, 2019, 2:22 PM Gene Heskett <[email protected]> > > wrote: > > I keep forgetting the circle can be drawn by a helical xy path, dropping > > z at the right pitch. Great idea Stuart, just haven't tried it yet. > > > > That's assuming you have 0 backlash or your backlash compensation works > perfectly as you move in and out of climb milling. I find I still get > better holes with a boring head for slip fitting ball bearing races for > example. But if all you want is a round access hole and the transitions > aren't important then a boring tool is a lot of work compared to G-Codes. > > Now if I had preloaded ball screws on X and Y then I suspect the boring > head will become redundant. > > John > > > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Addressee is the intended audience. If you are not the addressee then my consent is not given for you to read this email furthermore it is my wish you would close this without saving or reading, and cease and desist from saving or opening my private correspondence. Thank you for honoring my wish. _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
