Posted by BillS on May 27, 2013 at 09:04:25:
In Reply to: Re: hobbing differental constant (formula) posted by bilal on May 24, 2013 at 13:54:46:
No markings at all? I would recommend reading the article about "mystery" hobbers, and FAQ topics for finding unknown machine constants.
Have you used the machine to cut spur gears? How familiar are you with hobbing in general?
Do you know if it has feed change gears? or does it use hydraulic feed?
Does it have another set of change gears, presumably differential gears?
Do you use index change gears in a ratio of 120/Teeth to Cut? Machine must be designed to cut very large numbers of teeth...
Sorry for all the questions but we need to start with basics to see what you will need.
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