Re: Hobbing a Prime gear??

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Posted by BillS on September 01, 2006 at 15:01:32:

In Reply to: Re: Hobbing a Prime gear?? posted by Sargent Caldwell on August 29, 2006 at 19:17:06:

Was the prime gear you cut spur? or helical? If it's not too much trouble, could you post the gear specs and the Pfauter Model Number?

I now have some "dual" formulas from several manuals (Thanks Ron!) that differ from the formulas used in CPC-HOB. One of these is for a Fellows-Pfauter P630.

One user has reported that the "Dual" option in CPC-HOB doesn't work on his G&E, and this experience leads me to think there needs to be (at least) two modes for the "Dual" option feature in CPC-HOB.

It may be that your Fellows-Pfauter design locates the differential such that two setups calculated independently of each other may be super-imposed. This was my original assumption when I did the "Dual" option for CPC-HOB.

Anyone, please - if you have experience (either good or bad!) with the "Dual" option in CPC-HOB or you are using a manual method to cut large spur primes using two setups simultaneously, please share your thoughts. Or click on my name and email me if you prefer to remain anonymous. I desperately need your comments, suggestions, experiences, etc.

Sargent and other CPC-HOB users, I'm not going to remove the "Dual" option from CPC-HOB, but I really want to make it work for all hob designs. Or at least warn users that it may not work on all machines.

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