A picture is worth a thousand words. Whiteside Tools part #1430 for an 1/8" radius (there is also a smaller 3/32") http://www.whitesiderouterbits.com/catalog.html#catimgs A good place to order thier tools is Carbide Processors. http://www.carbideprocessors.com/half-round-bit-for-1-4-material-1-2-shank-whiteside-1430/
If you were wanting something more like a half bull nose rather than a full (like the above). You might be out of luck in an off the shelf option. But it might not be to hard to grind down a full round over bit to the shape you'd like. ----- Original Message ----- From: "Gene Heskett" <ghesk...@wdtv.com> To: emc-users@lists.sourceforge.net Sent: Saturday, February 20, 2016 9:46:04 AM Subject: Re: [Emc-users] Cutting tool fingernail style need On Saturday 20 February 2016 05:18:13 Marcus Bowman wrote: > On 20 Feb 2016, at 09:29, Gene Heskett wrote: > > On Saturday 20 February 2016 02:49:15 Marcus Bowman wrote: > >> On 20 Feb 2016, at 02:31, Gene Heskett wrote: > >>> Greetings all; > >>> > >>> I am not haveing any luck finding one smaller than 3/8 radius, and > >>> I need one that cuts with a 1/8" radius. > >>> > >>> Any body know of a place I might be able to source one that small? > >> > >> Not sure where might be close to you, but I have one which I got at > >> a local wood turners' store. It is a 1/8inch gouge tool, but I made > >> it into something more like a fingernail tool by grinding. I just > >> copied the shape of one of my larger fingernail gouges. With a tool > >> that small in section, it needs support close to the cutting edge, > >> because I find mine prone to chatter unless the rest is set close > >> in. I would be inclined to fix it in a 5/8inch sleeve machined with > >> a tapered nose. > >> > >> I can also highly recommend the Drozda Finial Gouge, which takes > >> things a stage further. Cuts beautifully when used by hand. You can > >> buy one here: http://www.cindydrozda.com/html/Tool_Info.html > >> > >> but I bought the DVD which shows you how to make one (too far away > >> for the expensive carriage on the tool to make sense). There is a > >> youTube video around which shows much the same thing, I think. > >> There used to be a clip on the Drozda site, as I recall. > >> > >> Marcus > > > > But Marcus, I am not doing this by hand, or even on a wood lathe, > > this would be a router bit, chucked in my milling machine, possibly > > making multiple passes to get the correct edge profile. > > Point taken; sorry. > So could you do this using a ball-nosed end mill? Or could you > reshape an end mill? No, ball is the inverse of the shape I need, see <http://grizzly.com/products/C1214> for an example but that ones 3/8" width of hollow is nominally 2x wider than what I need. A 1/8" radius would be the bees knees for this. I have some 4" wide, 1/2" thick 7075-t6 that I can make a blade holder disk from by boring a 22mm hole to fit an arbor, then taking out a pie slice, and fitting a 1/2" x 1/8" piece of A2, and shape the end with a 1/4" SC mill, basically makeing the tool I need but it will take me most of the weekend. I would rather the disk was steel as I expect the mass would improve the quality of cut, but that alu is what I have. And I haven't the capability of hardening the A2 when its done. Thanks Marcus. 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> ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
