On May 20 2015 8:18 AM, Gene Heskett wrote: > On Wednesday 20 May 2015 07:15:58 andy pugh wrote: >> On 20 May 2015 at 02:52, Gene Heskett <[email protected]> wrote: >> > But it appears I will have to make an arbor to hold a thick brass >> > disk, and annoint it with diamond paste, the big dremel diamond >> > wheel, >> >> HSS (or even tool steel) would be perfectly adequate for making the >> few pulleys that you are needing out of aluminium. >> So I don't quite see why you are using diamond laps. > I need to form the tool in this shape > /\ > | \ > | \ > | \ > > so it can cut a 2 step pulley, one step about 3" in diameter, the > second, > right hand step at about 1.5" in diameter. Where the included angle > at > the tip is around 35 degrees, and the left facet, the / above is half > the .092" width of the groove. I have already tried to remove the > gross > amounts of material from the right side of a 5/16" bar, but at that > angle all I was doing even with an every 10 second dip into a pan of > water, was overheating it. Wrong stone on that grinder maybe, its > quite > fine grained & seems to dull easily. > > So today I try a different method of mounting to allow a different > profile using the diamond disk that will basically just cut away the > end .125" of the tool. I have a drill chuck mounted on a rod that I > use > for carrying a milling tool for use in small bore boring ops, and if > the > jaws on it will open wide enough to clamp the tool at the heel > clearance > angle, I can chuck that rod in the 3 jaw on the rotary table, and > establish the edge angles that way. My current method of holding the > tool in the 3 jaw puts the end of the tool so close to the 3 jaws > that I > can't get at the tool with the diamond disk without damaging the > chuck > or jaws. The tool is too short, so I have to jury rig something > different. > > But it may wait, I think we are headed to NY to say goodby to Dee's > older > sister, who has indicated she wants no more effort made to keep her > going. Some sort of a blood infection and pneumonia thing. She is > 85 > or 86 now, and lost her speech from a stroke shortly after her > youngest > was born 50 years ago. So life has been, to her, just one confusion > after another, and she knows the end is approaching. So I think I do > my > laundry today in between this other stuff, and with the recall on the > airbags, I am going to try & convince Dee we take the GMC instead of > the > 2007 RAV-4 Toy which has not yet had its bags replaced. The GMC's > bags > are 99 versions and not known to have the problem. Not to mention I > feel better in a 7,000+ lb vehicle in Memorial weekend traffic. Its > about a 450 mile run up there, a good long day behind the wheel for > me.
Sorry to hear about the family issues. I hope her time is a comfortable as can be. re: the tool profile... Do you have a CNC lathe handy? Why not use a narrower angled tool, and cut the profile? Just a thought. EBo -- ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
