On 03/11/2021 12:28 AM, Chris Albertson wrote:
The really hard part that I don't know how to do is a ring gear.   I can't
figure out how to cut internal teeth.   I might just buy these if they
can't be machined.

Internal teeth need to be cut with a gear shaper, or specialized gear hobbing machine.
Or, with a mini right angle drive attached to the machine quill.

Jon


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