On Friday 31 July 2015 03:04:58 andy pugh wrote: > On 30 July 2015 at 23:43, Gregg Eshelman <g_ala...@yahoo.com> wrote: > > It has a strong spindle where the disc mounts to fit the hob, and a > > slide at 90 degrees to it where a second spindle holding the gear > > blank could be mounted. > > A gear hob needs to feed the gear across the hob at the hob lead > angle. This makes many machines unsuitable. > My milling machine has a swinging table which makes it easy. It would > be possible to achieve the same thing with CNC using combined XY moves > and the work squiffy on the table.
"squiffy"? As in not square on the table? That I could understand I think, but what would you use to determine the obviously acute angle needed? It doesn't strike me that the usual protractor gismo would be accurate enough even with a vernier scale. 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> ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
