On Friday 11 May 2018 08:42:58 Erik Christiansen wrote: > On 11.05.18 07:42, Gene Heskett wrote: > > On Friday 11 May 2018 03:32:39 Erik Christiansen wrote: > > A box or three of grubscrews off fleabay won't add up > > > > > to much cost. The last boxful I bought was M3 to M10, IIRC. You > > > might do better buying plastic bags of each size, for quantity. > > > > Thats what I'm going to do, something with a bit of length so an > > allen or bristol wrench has a decent chance of driving it well. I > > just need to get off my duff and get a few boxes ordered. 100 count > > boxes. > > Errrr, vertical hold is slipping now. AIUI, you're putting the tap hat > into an R8 collet, so the grubscrews can't be longer than the wall of > the tap hat. Mebbe that just means you're going for a significantly > bigger collet to give room for the longer grubscrews. I think I have > picture lock again. I'll have to do that too when I get the bigger > sizes done.
I made all the brass things from 6' of 7/8" brass rod stock. put a 4mm cap screw in the side with about 2mm of the cap sticking out, slides into a cut about 7mm wide and 9mm deep I made in 3 of the korean R8-7/8 collets. The whole thing when inserted into the R8, sits with the bottom nominally flush with the bottom of the R8. So I'm not using up the vertical clearance with excessive z length. So the brass plug is locked to the spindle, at least till the 4mm cap shears off. Next is to drill the brass and install the grubscrews. I figure on doing the thru drilling while they are mounted in the spindle, with a drill bit in a drill chuck, but the chuck locked into a table groove and the xy drive set so it center drills the brass. Thats picky as visibility is poor, but once thats located, it should be findable again. The chuck has a 3/8" thread, so a short stud in a t-nut should hold it fixed on the table. > ... > > > I'm not that high either, 1000-1100' maybe. The "mountain" our old > > ntsc transmitter is on since 1955 or so, is called Fisher Hill, 1620 > > feet at the base of a 509' tower and antenna. Costs more to take it > > down than its worth as salvage, so they are keeping the lights on. > > I'm the light watcher/failure reporter as I can see it from my > > place. :) > > Sounds like Entropy is the feller who'll bring it down. (Doesn't > charge much, but leaves ya with the clean-up.) Seems like you're out > of range when it happens. That's kinda handy. > > Erik > > ---------------------------------------------------------------------- >-------- Check out the vibrant tech community on one of the world's > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users -- 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> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
