If the tube is square it should be easy to drill one side then the other so DoC should not be an issue. I'd probably use a 1/16 carbide PCB bit rather than a drill to avoid tool changes. Something like https://www.ebay.ca/itm/152432448724 I've purchased many times from this vendor and have always been pleased with the product and speed of delivery. Resharpening small bits doesn't seem to be worth the bother.
-----Original Message----- From: gene heskett <ghesk...@shentel.net> Sent: December 18, 2022 12:50 PM To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net> Subject: [Emc-users] Sharpening teeny drill bits Greetings all; As many of you know a drill Dr is the bees knees, for drill bits above 6 or so mm, but a disaster for smaller bits due to the tolerances of the stamped and plastic chuck giving you lop sided grinding. AKA BIGGER holes. So, what jig or machine do you all use to sharpen drill bits in the below 5mm categories? Or should I gently spiral down a 1/16" SC mill, but that runs out of DOC long before it reaches thru a 20mm square CF tube. I've about 35 such holes to drill in 1mm thick wall CF, 8 of which need to go all the way thru both sides of the tube. Those will all be thread clearance for 3mm screws, but 8 of them will need to be for a 3mmx.5 tap, in 4.1mm thick alu. CF will no doubt be hell on drill bits, so it (or they) will need resharpened frequently I expect. Thank you, stay warm and well 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, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
