On Wednesday 10 September 2014 13:31:56 andy pugh did opine And Gene did reply: > On 24 April 2014 13:43, Gene Heskett <ghesk...@wdtv.com> wrote: > > Good looking stuff though. I'll take some measurements when it warms > > up later today and see if I can use that last tool holder. Or if I > > need to make another tool post to hold one of the bigger, more rigid > > ones. PIMA, but not impossible. > > I received a job-lot of the boring bars via eBay today. > https://picasaweb.google.com/lh/photo/Nsaiddo8vrB0_JZHB2LuGdMTjNZETYmyP > Jy0liipFm0?feat=directlink > > If you (Gene) tell me how small you need to bore, and how deep, I will > send you one as a gift. (PM me an address)
Talk about a blast from the past. I appreciate the offer Andy, but the problem has gone away, and at this late date I don't recall if I found a workaround (I probably did) or the project was scrapped, also a good possibility. So thanks for the offer, it is appreciated, but its not needed anymore. Humm, ISTR I was thinking of boring a socket for a #209 shotgun shell primer, but made a work around by drilling with a low angle 3/16" bit, then mounting a 3/8" drill chuck on a 3/8" rod, mounting that in a boring bar holder, and putting a 2 flute 1/8" carbide bit in the chuck so the near edge of the cutter was about level and turning the toolpost holder about 5 degrees CCW so I could use the edge of the mill as a boring bar. The flatness of the bottom of the hole isn't critical and can be somewhat conical, and any precision there is moot because the drawn copper forms are so sloppily drawn. Supposed to be .240 in diameter, they range from round to oval out of the box, with the oval causing as much as a .249 measurement. Since the insertion and extraction of the spent one is either finger or teeny plastic tool, I've been boring them to around .246", and most #209s will work. That works, but the next gotcha is not being able to find drill bits #68 to #72 or so, used for flash holes in these nipples, in 10 or 25 packs. Everyone wants to sell a full set, one each #60 thru #80 for about 15 to 25 USD. All this because the only replacement nipples available are side vented, letting 90% of a #209 out the sides because its too much fire for real black powder like GoEX. But I am using a much more accurate substitute, BlackHorn 209, a smoky smokeless, but its so heavily coated with DNT that it takes the full power of a #209m primer to light it right. Plain steel corrodes fairly fast, so an annual replacement should be made. Or, and this too is on the bucket list, make one out of Stainless. 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> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS ------------------------------------------------------------------------------ Want excitement? Manually upgrade your production database. When you want reliability, choose Perforce Perforce version control. Predictably reliable. http://pubads.g.doubleclick.net/gampad/clk?id=157508191&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
