On Thu, 12 Jun 2008 00:38:02 -0500, you wrote: >Kirk Wallace wrote: >> Has anyone tried cutting gears with something similar to this >> arrangement? >> >> http://www.wallacecompany.com/machine_shop/Gear_Cutter-1b.png >> >> I was thinking a slot saw (gray disk) could be used, centered on the >> gear shaft(violet). The gear tooth form could be followed with Y while >> rotating the gear (bronze color) and incrementing X on each gear >> rotation until the width of the gear is complete. Or successive passes >> in X and incrementing Y and A could make a complete tooth so that one >> gear rotation would complete the gear. Slot saws aren't very stiff and >> don't side cut, so some other cutter would be needed. Part of my >> thinking is that I would like to avoid special cutters like those needed >> for normal gear cutting. >> > >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. On thin brass blanks, I reckon it takes no longer than 1 second a tooth. Steve Blackmore -- ------------------------------------------------------------------------- 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
