Posted by Bob M on November 25, 2011 at 13:39:44:
In Reply to: Re: lead angle correction - worm gear hobbing posted by inshaajee on November 25, 2011 at 11:16:35:
No, the hob is initially made a bit oversize to accomodate sharpenings. The oversized hob then causes the lead angle to be off a bit in the hobbed gear. This is compensated for by swivelling the hob a small amount.