Posted by BillS on March 25, 2013 at 07:48:10:
In Reply to: Re: Chatter marks on gear teeth posted by Tim on March 24, 2013 at 13:02:56:
Sounds like you've created a "dumbbell" affect which only changes the frequency of vibration, but doesn't dampen the vibrations.
Is the machine a verticle hobber (with table) or horizontal (with horizontal arbor).
If vertical, suggest you get a piece of pipe with OD slightly smaller than work root diameter, or at least in contact with face of gear.
If horizontal, you might mount a bumper against the face below root diameter, and placed somewhere near the cutter. This bumper should be adjustable to just barely contact the gear face.
Hopefully someone with ideas will post here and keep the conversation going.
(sorry your message didn't originally post - I posted it for you - Ed)
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