Posted by Bill S on December 18, 2000 at 14:54:26:
In Reply to: Need help cutting helical gears posted by David on December 13, 2000 at 05:42:09:
If you don't otherwise get exactly what you need, you might check this site's FAQ. See topics H-5 and H-7 for ways to determine differential and feed constants. You may need to do some trial & error to get the machine data you need.
Basically, all you really need is the differential ratio formula, and I am aware of only two specific machine formula types, shown as A and B in the FAQ H-5 topic.
You already know the index constant if you are cutting spur gears.
Let us know if you have questions.
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