i've not done it with linuxcnc we did it a lot in heidenhain tnc controls for sink edm
google thread milling you need a tool with the correct pitch on smaller shank than the drilled hole how the metal is attacked can be: goto to the bottom before interpolating an expanding circle or helix down at the desired radius multiple passes can do roughing and finishing Linuxcnc has the primitives to do this this is an application not a special motion ( afaict ) the problem in sink edm was that the leading edge of the tool wore out quickly if the tapping was plunged versus if the path was interpolated (expanded laterally from center), then the tool wear was evenly distributed over the tool face i'd think the same advantages occur in chip machining also a larger cutting interface occurs ( not a single leading point ) it was a real advantage when making large diameter threaded plugs ( > 100mm dia ) and its really simple program tomp tjtr33 On 02/03/17 14:59, Valerio Bellizzomi wrote: > http://www.infodelta.it/foto/film/filettatura%20interpolata.mp4 > > > > > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, SlashDot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users