On Friday 31 March 2017 20:45:01 andy pugh wrote: > On 1 April 2017 at 01:15, Gene Heskett <[email protected]> wrote: > >> If you are trying for a full circle then then (in incremental mode) > >> you want to come back to where you are, so > >> G3 X0 Y0 I-2.6625 J0 > > > > Thank You Andy, that worked well. But why can't I look this up in > > the docs? > > What would the docs say? "In incremental mode, to stay in the same > place, program a zero length move" ? > > You don't actually need the XYZ. > > G91 G91.1 > G0 X 1 > G3 I -1 > > Works fine for a full circle of radius 1. > > To spiral down > > G91 G91.1 > G0 X 1 > G3 Z -10 P10 I -1 > > While I am here: why do you think that G4 is queue-buster, and why do > you think you need one?
Specifying the p(ause) breaks the queue, or something like it and hopefully gives the G9x stuff time to complete. I ran into a situation a couple years back where I had to do that teeny pause or things didn't work right until the 2nd line down. Cost me some mahogany too. I didn't see the error in the white pine test cuts until it was obvious in the mahogany and went back to a 2nd test fit useing pine, at which time I could see it because I knew what to look for. The queue buster fixed it, and I've been doing it ever since. Originally used in the subs of my furniture joint carving code where I was carving those huge box joints the green brothers were so fond of in about 1906. Checking that file as it exists today, I see I took those back out, and re-arranged the subs to use the global position as a base+the arc code offsets, so none of the G4's remain now. Those pauses to give the jig motor time to complete its move are manual mouse clicks to unpause. Thanks Andy. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
