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. The workpiece is clamped in a vise mounted on the table, jacked up to achieve the correct tilt. I considered making a planer/molder wheel of the type that uses interchangeable knives, but I haven't come up with a planer/shaper blade to do that either. Blank molding knives ISTR one could once buy, but the grizzly catalog has none today. Worse comes to worse, I have some 1/2" x 1/8" unhardened A2 but I am not set up to do the hardening. That I can shape with a 1/4" SC mill, lapping the face on a 12,000 grit water stone to sharpen it but no idea if it could do 72 ends of these mahogany things without several trips to the powered waterstone. At 1.75" radius of knife holder, a single tooth at 2500 revs should do it, and I do have the raw stuff on hand to make that. And the weather is looking good for tomorrow too, so I won't freeze my feet. I need 2 tilting vises, I hate disturbing the angle its set at right now as its hard to restore exactly. No vernier drive on the tilt. Cheap $60 Snears & Takeitback vise. But it is solid. > > A fingernail bit is not quite a beading bit as the ends of the > > cutters are at a 90 degree angle to each other, 45 degrees off axis > > for both upper and lower "wings". I need to roundover the ends of > > these trim pieces, but do it in 3d by tipping the vise 45 degrees so > > the meeting line of two curves is horizontal and I can then cut a > > curve of the same radius as if a 1/8" roundover was used. But since > > its two curves meeting, and LCNC can't cut a 3d curve, I don't see > > another way to do it without the fingernail style tool. > > Thanks everybody. 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
