Posted by BillS on August 01, 2008 at 15:11:01:
I'm posting Mike's email here to get your opinions:
I am a novice with cutting helical gears. I was cutting 21 tooth w/ 30 degree left hand helix.
The hob is double start Left Hand hob. I could only obtain climb cutting feeding toward the tailstock
by using 2 studs in the index and 2 studs in the differential. It was tracking after cuts of .005, .50, .100 the
last cut of .100 broke 2 rows of gear teeth. What happend?
I had less than .050 surface foot and .025 feed.
The article I read said I needed to adjust index and differential for Dbl start hob. I did double the driver in the index, but did not do anything with the differential. Does this cause a problem?
Perplexed- Mike S
Mike, I tried to let you know that I posted your question here, but firstname.lastname@example.org is rejecting my email.
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