On 07/15/2016 08:13 AM, Gene Heskett wrote: > On Friday 15 July 2016 09:17:20 Daniel Rogge wrote: > >> Kirk Wallace modified G76 for us to accept a taper value. The >> modified version takes a D parameter for taper, but the lead in/out >> tapers had to be removed from the cycle for a compatibility reason >> that I've forgotten. Kirk may have more information. If you are >> interested I'll send a patch. >> >> Rogge >> > That is another concern that I am coding into this. Losing the > leadin-leadout is a fatal flaw for this. The tool must be retracted > enough to clear the thread peaks during the retrace. For boring or > turning, one can retrace with the tool in contact, but not for > threading. So I don't think the patch would do me any good. > > Thanks for the offer though, Rogge. > > Cheers, Gene Heskett >
If we are talking about the same features, you don't lose lead-in/out or rather X start and retract to a safe zone, just the option of having additional tapers near the start and end of the thread. In my opinion, it is best to have stable linear motion in air before starting the cut, so the lead-in taper is moot. For the ending taper, the only reason for this that I could find was to be able to modify the thread form to help prevent a stress riser, which seems strange to apply to thread forms. The intent of the upgrade was to have a stable linear motion in air before starting the cut of the tapered thread, then do a straight retract in X at the end. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports.http://sdm.link/zohodev2dev _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
