On Sunday 03 July 2016 13:40:06 Gene Heskett wrote: > On Sunday 03 July 2016 13:14:54 John Kasunich wrote: > > I don't think there is really a standard. I would guess most would > > be either 45 degrees or 30 degrees. > > > > Stick an un-ground tool blank in the hole and measure it? > > I have one of those parallelgram plastic angle gismos that might be > accurate enough. > > Thanks John K.
And ANAICT, it says its 25 degrees from perpendicular. So it would need a very small, 5 degree clearance on the back side of the tool with little or no clearance, and a 55 degree angle on the leading edge for a total of 60 degrees included but a good clearance ramp on that side of the tool. My table can dial that up. Another project for the toy mill as I've not made a 4th axis yet for the G0704. This time I'll buy a tilting base version to allow setting the clearance ramps more accurately. > > John > > > > On Sun, Jul 3, 2016, at 12:05 PM, Gene Heskett wrote: > > > Greetings everybody; > > > > > > This Sheldon lathe came with a boring bar, .750" by about 8" long. > > > One end is broached straight thru for a small 1/4" tool, while the > > > other is broached at an angle. I am thinking the angled end would > > > allow me to cut threads about 1/2" closer to the bottom of a hole. > > > But to do that, I'd need to know this angle so it could be used in > > > sharpening the tool properly. > > > > > > Is there a std angle for this broached at an angle end of a boring > > > bar? > > > > > > If so, what is the degree of that angle? > > > > > > Cheers, Gene Heskett > > > > -------------------------------------------------------------------- > >-- -------- Attend Shape: An AT&T Tech Expo July 15-16. Meet us at > > AT&T Park in San Francisco, CA to explore cutting-edge tech and > > listen to tech luminaries present their vision of the future. This > > family event has something for everyone, including kids. Get more > > information and register today. http://sdm.link/attshape > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > Cheers, Gene Heskett 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> ------------------------------------------------------------------------------ Attend Shape: An AT&T Tech Expo July 15-16. Meet us at AT&T Park in San Francisco, CA to explore cutting-edge tech and listen to tech luminaries present their vision of the future. This family event has something for everyone, including kids. Get more information and register today. http://sdm.link/attshape _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
