Posted by John J. on July 11, 2003 at 20:52:40:
In Reply to: Formula for milling helical gears posted by John on June 16, 2003 at 23:31:20:
one approach is to install a 1 : 1ratio of feed gears on the machine, then measure the feed travel after 1 rotation of the work spindle. That measurement would be the feed constant of the machine.
I've never tried this technique to deduce an index constant of a gear hobber. Good Luck