Posted by lee on April 09, 2010 at 17:06:33:
In Reply to: How do I cut helical gears on a Newark 3 hobbing machine? posted by Chuck on April 08, 2010 at 20:43:35:
Chuck
Bill is correct you must know the exact constant for the Index & differential of your machine.
is there anything marked on the machine?
ask who sold it to you if he or she knows.
Bills lead is a good one.