I'm still trying to figure out why you would need a key. End mills don't spin inside R8 collets. The collet holds them so tight that something breaks before the end mill spins.
If you do cut the R8 collet I don't see how to get the end mill in the correct orientation. I think you would need to make a much deeper slot with end mill parallel to the R8 collet On Sun, Apr 1, 2018 at 11:36 AM, Gene Heskett <ghesk...@shentel.net> wrote: > On Sunday 01 April 2018 11:15:39 Andy Pugh wrote: > >> > On 1 Apr 2018, at 16:01, Gene Heskett <ghesk...@shentel.net> wrote: >> > >> > But the thought has come to mind that for series production, I also >> > need a jig to hold these R8's when they arrive in order to cut the >> > slot in one leaf of 3 leaf design, to make that cut in the lip for >> > the keying screw. I see a lot of similar gizmo's for 5C tooling, >> > but haven't tripped over one made to do the same thing to an R8. >> >> The 5C ones are for holding a workpiece in a 5C collet, not for >> holding a 5C collet. With both collet types you would need to grip >> something in the collet in order to clamp up tight. >> >> R8 is meant for cutter holding. What would be the application of an R8 >> Spin indexing fixture? >> > Apparently my description has not been adequate to describe what I want, > which is keying the tap holder slug into the R8 so that it cannot rotate > within the keyless bore of an R8 tool holder. The half circle, or a > little over a half circle, as pointed out in the attached scribble, is > where I want to cut away so as to allow the head of a 4mm socket head > screw to enter into the cutaway shown in the end of the R8 so as to key > the "tap hat" slug to the R8, already keyed to the spindle by its pin > and locking slot, removing yet another potential point of slippage to > screw up a hole while rigid tapping it. > > Short of spending 6 months to learn how to run one of the cadcam gfx > engines and make a professional drawing, its the best I can do on the > back of an envelope. My water bill TBE. :) > > -- > 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 > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California ------------------------------------------------------------------------------ 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
