On Monday 28 December 2020 02:59:35 John Dammeyer wrote: > Hi Chris, > All the metal pulleys I've bought from say Misumi or SDP are machined. > > There are some good videos out there on using say a broken spot drill > to create a cutter. Heat it and cool slowly to reduce hardness. > Grind a lathe tool to the shape of the desired profile and turn the > cutter to that shape. > > Transfer from collet in lathe to collet in mill and mill half away. > Grind relief and heat, chill, heat, temper. Use a stone on the flat > surface. Install into boring head and with spin indexer mill the > slots. Because the cutter has the rounding on the edges for the teeth > the tooth profile appears to come out fairly well. > > Now with an angled table and synchronized horizontal mill and 4th axis > as Andy demonstrated in his video, it's even easier. > > John > > > -----Original Message----- > > From: Chris Albertson [mailto:[email protected]] > > Sent: December-27-20 11:39 PM > > To: Enhanced Machine Controller (EMC) > > Subject: Re: [Emc-users] Making L Type Timing pulleys. > > > > On Sun, Dec 27, 2020 at 2:15 PM Andy Pugh <[email protected]> wrote: > > > Though, machining is faster for me. But not for most, I suspect. > > > > How would you cut the tooth profile? What about a curved profile? > > What if you need flanges on the pulley? Maybe you could use a tiny > > ball-endmill on a four axis milling machine? > > > > The metal pulleys you buy are not machined. I think they are > > diecast
My 6040 came with an A axis, but the motor I put on it to get way more holding torque is now doing funny things so since I bought a spare of the new 3NM stepper/servo's, I am considering putting it on that A axis. With an even larger pulley on the chucks axle. Its on my todo list. 3rd or 4th down. Right after putting a teeny air compressor on it for mister air. Noisy little beast though, gotta make a muffler box first. > > Chris Albertson > > Redondo Beach, California > > > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > _______________________________________________ > 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) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
