> From: andy pugh > Sent: 07 January 2020 13:46 > To: mark.vandoesb...@hetnet.nl > Cc: EMC developers <emc-developers@lists.sourceforge.net> > Subject: Re: [Emc-developers] G71 and friends > > On Mon, 6 Jan 2020 at 20:42, <mark.vandoesb...@hetnet.nl> wrote: > > > Why do it that way rather than specify a curve or line in the > > sub that defines the fillet / chamfer? > > > > I don't have CAM software, > > Well, I can't imagine using G71 if you did have CAM software. > (Fusion360 is partly why I lost the incentive to convert my G71 remap to > native code) But a chamfer is easy to hand-code, and R-format arcs are > simple too. > I think that the objection to R-format falls down in lathe code where they are > typically exactly 90 degrees. >
I used to feel the same way, but I now use G71 for lathe work a lot more than I use CAM. For prototype work it isn't worth the time for me to mess around with transferring programs on a floppy! The only time I'll use CAM on the lathe is if I've got multiple backfacing ops. One of the reasons I abandoned my G71 code was that my linuxcnc lathe had a major control failure, I was offered a Haas TL-1 shortly afterwards at a price I couldn't refuse. Since picking that up I've gotten far more used to entering programs on the control, with linuxcnc I always wrote the program on the computer and transferred when ready to run. I still use linuxcnc on the Bridgeport and the router, but don't have time to keep up with development any more. Best Wishes Ben > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is designed > for the especial use of mechanical geniuses, daredevils and lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > > > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
