Hobbing a Spur Gear Pt I: Setting Up the Change Gears

Shows the factors governing the selection of the hob; how to select change-gear combinations for speed, feed, and index; how to identify the correct gears; how to mount the change gears; how to adjust for backlash; and how the change-gear trains are interrelated.
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  1. 16mm Filmography (legacy record) — title, creator, length, format, color, sound, description, catalog record