Steve Blackmore wrote: > On Thu, 12 Jun 2008 00:38:02 -0500, you wrote: >>In theory, this can be done. A thin slitting saw would deflect >>too much to get an accurate tooth profile. You can buy gear >>tooth cutters and run them like this, and it will go much >>faster, which is still fairly slow. > > > http://www.jeffree.co.uk/Pages/cnc-wheel-cutting-engine.htm > > I've seen that in operation and used it at a show here in the UK, it's > not slow, gear cutter rpm was about 2500 rpm and you can stuff the > cutter through the blank full depth - I guess feed was about 100 ipm. > If you do it on a horizontal mill with arbor supported at both ends, you can do it like that. 2500 RPM certainly wasn't an HSS cutter in a steel gear blank.
> On thin brass blanks, I reckon it takes no longer than 1 second a tooth. You can't do that as the gear blank willl fold up. So, you need some discs on the side to support it. For moderately thin gears the support might be made slightly under the tooth root diameter, for really thing clockwork gears, the support discs probably need to be full tip diameter. Jon ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
