I don't mind doing the G93 calculations. The problem for me is no lookahead when using x,y,z,a
Does anyone know why n-axis lookahead isn't easy to accomplish with the new TP? (I'm sure its complicated ! :-) On Thu, Mar 14, 2019 at 12:47 PM Gene Heskett <[email protected]> wrote: > On Thursday 14 March 2019 09:12:51 Les Newell wrote: > > > That does not help the trajectory planner lookahead problem. It just > > tries to correct the feed rates for each movement segment. > > > > Les > > No, it doesn't, so in that sense you're correct, Les, but its certainly > one way to solve the problem in terms of production time. This is > something I encountered about 4 years back when I attempted to make a > ship auger type drill bit on the G0704 while I was building us an > entertainment center. And again with a similar auger bit when I was > converting part of our front deck to a wheelchair ramp alittle over a > year ago so I could get the missus in and out of the house. In the > latter case I needed it capable of drilling a hole at a low angle into > the side of a 4x4 about 15" high, to anchor it solidly to the deck so I > could drop a 46" tall plastic rail post over it and make the safety > rails on one side of the ramp. Very solid feeling rail, it doesn't move > with my 165 lbs leaning on it as hard as I can. That was the general > idea. But it took many many hours with a 1/4" ball nose carving a 3/4" > piece of cold roll that needed sharpening about 4 times a hole. Cold > roll is not the ideal to make a drill bit from, but it got the job done. > > I should have done something like calculating the speed by translating it > to radius, then to inches a minute. But TBT, I was much more interested > in getting the job done, between the rapid dulling and time > resharpening, it took about a day for each of the 3 posts to get them > planted in a puddle of tightbond. Needless to say, I downloaded this > conversion utility. On of the things I intend to do with this big gantry > is make a copy of a thumbhole gunstock I carved by hand for a 50 cal BP > rifle. Someday I'd like to find some purtier Maple. It shoots very well > the way it is. > > My thanks to the author, apparently Shawn E. Gano. > > > > https://www.ganotechnologies.com/cnc/rapidrotary/ > > > > _______________________________________________ > > Emc-developers mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > 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-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers > _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
