Posted by BillS on May 16, 2015 at 09:17:08:
In Reply to: Re: Differential Formula posted by Mark Schneberger on May 14, 2015 at 16:07:54:
This website has a table collection of hobbing machine constants. Here is a link to it:
FAQ list of Hobbing Machine Constants
Let us know if that works for you.
Also, in the same FAQ is a description of possible formulas and how to identify which one your machine uses, but most G&E hobbers seem to be type A formula.
BTW, what were you using as a formula/constant? I'd like to add that to the data table.
I suspect the book you have is 90% based on your hobber, but is actually written for a "special" G&E with a different formula constant.
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