On Wednesday 16 January 2019 11:50:05 Jon Elson wrote: > On 01/16/2019 01:42 AM, Gene Heskett wrote: > > On Tuesday 15 January 2019 22:42:11 Jon Elson wrote: > >> I use a bunch of C programs I have written over the years to > >> write G-code for specific operations (round holes, slots, > >> etc.) and these all use R word arcs in quadrants. > >> > >> > >> Tell me more about this please. It is not mentioned in the pdf dox > >> I get from master yet. > > Well, it is NOT part of LinuxCNC. See : > > http://pico-systems.com/gcode.html > Thread milling looks interesting. Unfortunately I was green as grass when I bought a thread mill probably 17 years ago, with an eye to threading on the little hf when thats all I had, and the little hf never did grow a spindle encoder. But dummy me bought a .750" tool. I could cut OD threads with it too, but I don't see it as usefull for internal threads w/o at least a 1" hole so it had wiggle room. So its still in the box & never used. As I've never needed to thread that big a hole, and I'd do it on the Sheldon now anyway. :) And I did all the threading including the long tapers to convert the Sheldon to CNC, did all that on TLM. Its amazing what the tapered gibs did for that $350 lathe.
> for info on some of these. I really ought to update this > page with all of my newest programs. > I've added a few more, with ramp-down and a program to cut > ovals with half-circle round ends to the slots. There are > old DOS executables for these, as well as very generic C source. > > I have converted one of my programs to Python, and got it to > give identical output to the C program. But, I'm not fully > up to speed on Python, so have not converted the rest, yet. > > These do not start the spindle, so you have to edit them all > manually. I often stitch together 10 - 30 of these > individual features to make a complete program, starting the > spindle at the desired speed in the beginning, and removing > all M02 lines except the last one. > > Jon > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users 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> _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
